轮机英语真题42期,甲类三管轮

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三管轮考证轮机英语41-48期试题教材

中华人民共和国海事局2006年第3期海船船员适任证书全国统考试题(总第41期)科目：轮机英语试卷代号：805适用对象：无限、近洋航区3000KW及以上船舶二/三管轮（本试卷卷面总分100分，及格分为70分，考试时间为100分钟）答题说明：请选择一个最合适的答案，并将该答案按答题卡要求，在其相应位置上用2B铅笔涂黑。

第1题至74题，每题1分，第75题至78题，每题1.5分,第79题至80题, 每题10分。

一、单项选择题1. A diesel engine is similar to a gasoline engine except that the former has no ______.A. cross-headB. spark plugC. connecting rodD. cylinder2. A diesel engine which is rated for normal operation at a crankshaft speed of 800 RPM, is commonly classed as a______.A. slow-speed dieselB. medium-speed dieselC. high-speed dieselD. constant-speed diesel3.Which of the diesel engine components listed increases air density and helps to improve engine operating efficiency?A. ImpellerB. CompressorC. After-coolerD. Exhaust diffuser4.For a given size engine, the two-stroke/cycle diesel engine will deliver more power than a four-stroke/cycle dieselengine because ______.A. it has a longer power strokeB. more air gets into the cylinder each strokeC. it develops twice as many power strokes at the same speedD. higher combustion pressure is developed5.The intake valves in a diesel engine are reseated by ______.A. cam followersB. push rodsC. combustion gasesD. valve springs6.According to the way the energy of the exhaust gases is utilized, pressure-charging can be divided into two mainsystems, namely, the constant-pressure system and ______.A. the pulse-phase systemB. the pulse Doppler systemC. the pulse systemD. the pulse interval system7.An over-speed safety device is usually fitted to a generator engine for______in the event of over-speed.A. cutting power off the engineB. increasing the fuel pump settingC. braking the crankshaftD. stabilizing the ship speed8.What preventative maintenance should be done frequently to diesel engine starting air receivers?A. Drain the accumulated moisture.B. Test the relief valves.C. Watch the temperature to prevent fluctuations in pressure.D. Clean the interior to remove oil and foreign matter.9.Immediately after any diesel engine is started, the engineer should check the ______.A. crankcase pressureB. lube oil pressureC. seawater pressureD. exhaust temperature10. A controllable pitch propeller on a diesel driven vessel eliminates the need for ______.A. friction clutchesB. disconnect clutchesC. reversing gearsD. reduction gears11.In motor ship, ______is often used to recover some of the heat carried in the exhaust gases from the main engine.A. an diesel oil heaterB. a waste heat boilerC. a fresh water generatorD. a donkey boiler12.An exhaust gas bypass is installed on a waste heat boiler in order to ______.A. bypass exhaust gas at high loads to prevent excessive back pressureB. bypass a portion of the exhaust gas at peak loads for better efficiencyC. recycle exhaust gas to the turbochargerD. minimize moisture condensation in the boiler gas passages at low loads13.Prior to lighting off a cold automatically fired auxiliary boiler, you should ______.A. check and regulate the water levelB. close the air cock once fires are litC. blow down the gage glassD. assure protective steam flow14.Flame failure in an automatically fired auxiliary boiler can mostly result from a/an ______.A. incorrect electrode settingB. incorrect nozzle positionC. clogged fuel nozzleD. broken high tension lead15.Waterside scale in a fire-tube boiler may cause ______.A. increased heat transferB. fireside erosionC. high steam demandD. overheated tubes16.Which of the following will be the advantage of a centrifugal pump as compared with a reciprocating pump? I. Itsdischarge is continuous; II. It has no internal valves; III. Upon accidental closing of discharge valve, excessive pressure will not build upA. I, IIB. II, IIIC. I, II, IIID. II only17.Why are removable sleeves installed on centrifugal pump shafts?A. They make it easier to replace the pump shaft packing.B. They can be economically replaced as they wear out.C. They can be removed when it is necessary to lighten the weight of the pump.D. They increase the strength of the shaft.18.If one of the bilge system manifold valves does not properly seat, the ______.A. bilge well connected to that valve, plus the second bilge well being pumped will be completelyemptiedB. bilge system will lose vacuum and prevent the other bilges from being pumped outC. bilge well aft connected to that valve will siphon(虹吸) its contents to the forward bilge wellsD. discharge pressure will be too high.19.Which of the listed statements is correct concerning the starting of centrifugal pumps?A. They should always be started with the discharge valve closed.B. They should always be started with the discharge valve opened.C. A priming pump is always required to flood the impeller suction.D. They should always be started with the sealing line valves closed.20.The simplest method to use for determining if a centrifugal pump is operating as designed, is to ______.A. closely observe the pump discharge temperatureB. close off the discharge valve, and watch for a rise in pressureC. momentarily close off the suction valve, and watch for a rise in pressureD. use a clamp on ammeter and compare the readings to past records21.Which of the following modes of heat transfer does NOT require any physical contact between a warmer and acooler substance?A. RadiationB. ConductionC. Natural convectionD. Contact directly22. A re-heater in an air conditioning system functions to ______.A. control inlet air temperatureB. control inlet air volumeC. maintain relative humidity at 15%D. restore conditioned air temperature to a comfortable level23.In a chilled water air conditioning unit using a reciprocating compressor, the refrigerating effect of the primaryrefrigerant can be increased by ______.A. increasing refrigerant pressure in the coilB. increasing chilled water flow through the coolerC. sub-cooling the refrigerant in the condenserD. superheating the refrigerant in the compressor24.Sludge may form in the lubricating oil crankcase of a reciprocating air conditioning compressor as a result of______.A. wax precipitation in the lube oilB. contamination by dust, scale, or moistureC. refrigerant bubbles in the lube oilD. refrigerant reducing the lube oil viscosity25.Placing a filter on the ______of an oily water separator will “polish” the discharge but overloading must be avoided.A. suction sideB. discharge sideC. by-pass pipeD. sampling pipe26.When started, a complete oily water separating unit is first filled ______.The oily water mixture is then pumpedthrough the inlet pipe into the coarse separating compartment.A. with dirty waterB. with clean waterC. by oily waterD. by mixed water27.Which is the pollution prevention equipment?A. booster pumpB. evaporatorC. incineratorD. cooler28.The ______is used to burn oil sludge.A. clarifierB. oil/water separatorC. incineratorD. distiller29.Most marine biological sewage treatment plants consist of all the following statements except ______.A. aeration tanksB. settling tanksC. disinfection agent （消毒剂）D. anaerobic bacteria (厌氧菌)30.For a purifier changing to a gravity disc with smaller hole diameter will move the interface towards the ______.A. bowl peripheryB. bowl centerC. upper surfaceD. lower surface31.The ______of the gravity disc is too big. It cause oil to flow through the water outlet. We changed the disc and nooil is found in the water outlet.A. gravityB. diameterC. circumferenceD. cylinder32.The advantages of flash type evaporators, as compared to submerged tube type evaporators, include ______.A. less internal corrosion because of lower brine densityB. higher temperature evaporation for lower salinity of the distillate producedC. less scale formation in a flash evaporatorD. less feed-water required for a flash evaporator33.Distilled water from an evaporator may be discharged into a drinking water tank ______.A. through a detachable hose connectionB. after passing through an activated charcoal filterC. after chemical analysis shows it is fit for consumptionD. through a solenoid operated three-way valve34.What type of valve is used to direct the flow of hydraulic fluid?A. relief valveB. direction control valveC. stop valveD. pressure control valve35.In a radial piston pump, reversal and control of fluid flow are accomplished by moving the ______.A. central valveB. radial plungerC. floating ringD. cylinder body36.In a general cargo crane, ______is fitted to lift the cargo load.A. the slewing motorB. the luffing motorC. the hoisting motorD. the fan moter37.______are used to handle anchors and chains.A. Cargo winchesB. Mooring winchesC. WindlassesD. Cargo hatches38.The clutch band of a constant tensioning mooring winch must be set up tight enough to drive the winch drum andshould slip only when ______.A. excessive loads are placed on the winchB. minimum pull is being exerted by the winchC. automatic operation of the winch is desiredD. wire is being retrieved at the maximum rate39.Dual (双的)electro-hydraulic steering units usually operate ______.A. with both pumps on line at the same time B．with one pump on standbyC．with the follow-up gear disconnected D．only when the rudder is moved amidships40.One factor that determines the frequency of an alternator is the ______.A. number of turns of wire in the armature coilB. number of magnetic polesC. strength of the magnets usedD. output voltage41.An electrical device which employs a stationary armature and a rotating electromagnetic field is used aboard ship asa ______.A. magnetic amplifierB. ship's service alternatorC. three-wire DC generatorD. saturable core reactor42.Current changing in direction and rising and falling in value is ___ .A. D.C.B. A.C. C. generatorD. fresh watergenerator43.Equal power factors on paralleled AC generators are maintained by an automatic ______.A. voltage regulatorB. reverse power relayC. reverse current relayD. governor control switch44.______shall be continuously powered and shall have an automatic changeover to a stand by power supply in case ofloss of normal power supply .A. Cooling systemB. Alarm systemC. The air conditioning installationD. The mooring equipment45.Switchboards may be of the dead-front type in which all live parts are installed behind ______and only theoperation handles and instruments are on the frontA. the capstanB. the collectorC. the panelsD. the surface46.The emergency generator or emergency battery is connected to ______on most ships.A. distribution boardsB. section boardsC. emergency switch boardsD. main switch boards47.The primary function of an electric motor is to ______.A. develop torqueB. generate high voltagesC. produce a magnetic fieldD. generate high electrical resistance48.Electrical leads and insulation on a motor should be painted with ______.A. heat-resisting acrylicB. heat-resisting aluminumC. insulating varnishD. insulating white lead49. A circuit breaker and a fuse have a basic similarity in that they both ______.A. can be reset to energize the circuitB. should open the circuit when overloadedC. will burn out when an over current flow developsD. should short the circuit when overloaded50.Electric circuits are protected against short circuits by means of a/an _______.A. diode(二极管)B. amplifierC. circuit breakerD. capacitor51.The electrolyte in a lead-acid storage battery consists of distilled water and ______.A. hydrogen chlorideB. calcium chlorideC. sulfuric acidD. muriatic acid52.When under maneuvering conditions with the machinery being manually operated the control unit or console shouldbe ___.A. automatically controlledB. off powerC. continuously mannedD. continuously unmanned53.______is a precaution which contributes to avoiding trouble under normal operating conditions.A. Constant inspectionB. Keeping constant loadC. Remaining constant temperatureD. Varying speed54.After “F.W.E.” is given, the air system is shut down, the ______gear put in, all drains and indicator cocks opened,and the cooling water kept running.A. steeringB. timingC. turningD. running55. A tank which has been sealed for a long period of time can be dangerous because ______.A. steel surfaces consume oxygen by rustingB. sealed tanks usually form a vacuumC. moisture condenses in the tank, displacing the oxygenD. most tank coatings give off poisonous vapors in the presence of moisture56. A class 'C' fire is burning ______.A. diesel oilB. magnesiumC. dunnageD. electrical insulation57.To prevent the spread of fire by conduction, you should ______.A. close all openings to the areaB. remove combustibles from direct exposureC. cool the bulkheads around the fireD. shut off all electric power58.The lengthening of a crack formed in the shell plating of a ship may be prevented by ______.A. welding brackets across both ends of the crackB. chipping out and slot welding the entire crackC. drilling a hole at each end of the crackD. cutting a square notch at each end of the crack59.After a fire has been extinguished in a closed space, personnel may safely enter the space when ______.A. smoke density has been decreased sufficiently to see the bulkhead opposite the compartment'sentranceB. a lifeline and explosion proof flash light are usedC. all smoke and toxic fumes are removed and an adequate oxygen supply is presentD. overhaul has been completed to remove any possible source of re-ignition60.While loading bunkers, you notice oil on the water near the vessel. What should you do first?A. Stop loadingB. Notify the harbor administration.C. Determine if the vessel is the source of the pollution.D. Start the main engine and put them in gear to disperse the spill.61.To anneal (退火)a copper gasket, you should heat the gasket _______.A. and quench it in oilB. cherry red and quench in waterC. and let it cool slowly in the airD. and carbonize it62.When a vessel is in dry-dock, the vessel's engineers should ______.A. examine the condition of the propellerB. chip and paint all hull protection zincsC. install new docking plugs in all cofferdamsD. inspect the hull for hogging or sagging63.The additional mark ______in the Classification Certificate for Machinery represents that personnel are watching atengine assembly control station and monitoring all machinery and electronic devices.A. BRCB. MCCC. AUT-0D. AUT-164.Which of the following operations must be entered on the Oil Record Book Part I?I. Routine discharge at sea of bilge water containing oil from the machinery spacesII. Bunkering of fuel oilA. I onlyB. II onlyC. both I and IID. neither I nor II65.Your ship’s certificates show that you did not do renewing work for certificate. All certificates have expired a fewdays before. Thus, your ship is ______.It follows therefore that she will ______.A. seaworthy / be fined in our portB. un-seaworthy/ be disassembled in our portC. seaworthy / be assembled in our portD. un-seaworthy / be detained in our port66.“Insufficiency of manning or insufficiency of certification of seafarers” is an identification of a ______.A. substandard shipB. standard shipC. over-standard shipD. reference ship67.When deciding the composition of the engineering watch, which may include _____appropriately, many factorsshall be taken into account.A. satisfied engineersB. qualified ratingsC. satisfied chief engineerD. qualified chief engineer68.The officer in charge of the engineering watch shall notify the chief engineer without delay______.A. in any emergency or if in any doubt as to what decision or measures to takeB. in the event of any impending action in ma chinery spaces that may cause reduction in ship’sspeedC. when isolating and bypassing machinery to be worked onD. co-operating with any engineer in charge of maintenance work69.At an unsheltered anchorage the chief engineer shall consult with ______whether or not to maintain an underwaywatch.A. the engineer officer in charge of watchB. the deck officer in charge of watchC. the masterD. the chief mate70.The term "moderate speed" was previously interpreted as meaning a speed which would enable a vessel______within half the range of visibility.A. stoppingB. being stoppedC. to stopD. to be stopped71.One of the methods NOT usually allowed in cleaning up oil spills in the United States is ______.A. skimmersB. strawC. dispersantsD. sawdust72.The SOLAS Convention in its successive forms is generally regarded as the most important of all internationaltreaties concerning the ______ of merchant ships.A. pollutionB. economizationC. efficiencyD. safety73.The Company should ensure that the master is fully ______with the Company's SMS.A. familiarB. understandC. conversationD. confused74.______means the level for which minimum appropriate protective security measures shall be maintained at all times,threats and exchanging such information with appropriate Contracting Governments.A. Security level 1B. Security level 2C. Security level 3D. Security level 4二. 关联题（关联题题干下有4个小题，每小题4个选项）With many small package boilers, the automatic control sequence usually ensures that the boiler fire is initially ignited from a diesel oil supply, and changed over to the usual source when ignition is completed. With good management, to facilitate subsequent starting from cold, the fuel system of large boilers will have been flushed through with diesel oil when the boiler was on light duty immediately prior to being secured. When burning such diesel fuel it is essential for safety that only the correct (small) burner tip should be used. It should be kept in mind that if fire does not light, immediately shut off fuel and vent furnace.Complete ignition of fuel in the furnace is essential. The burner flame, the smoke indicator and the funnel should be frequently observed. With satisfactory combustion, the flame should appear in candescent （白热的）with an orange shade at the flame tip, and a faint brownish haze should show at the funnel. If on first ignition the flame is uncertain, badly shaped and separates from the primary swirler, momentary opening or closing of air register may correct.75. Small package boilers will use _______ while being lit up.A. the usual source of oilB. fuel oilC. diesel oilD. mixture of fuel oil and diesel oil76. After large boilers being secured, the fuel in the feeding line will be____.A. the usual source of oilB. fuel oilC. diesel oilD. mixture of fuel oil and diesel oil77. If large boilers were not lit up, _____.A. feed water to normal levelB. stop fuel supply immediately and purge the furnaceC. light the boiler againD. reset the burner78. An indication for a good combustion is ______.A. white smokeB. brown haze in the funnelC. orange flame tipD. swirl oil spray三、中译英（共2题，请将答案写在答题纸上）79. 船舶加油期间，如发现船舶附近水面有油或发生溢油事故，都应立即停止加油作业。

轮机英语关联题(附答案)m二三管轮...教材

关联题（136题）Passage 1Valve drive mechanismThe valve drive mechanism commands the inlet and exhaust valves at the required timing.The valve drive mechanism consists of an inlet and exhaust cam follower (8) each suspended in a plunger of the tappet assembly (7), two tubular push rods (4) with ball joints, two nodular cast iron rocker arms (2) suspended in a rocker arm bearing bracket, two yokes (5) and a yoke guide pin.s. See Fig. 4-1.The tappet rollers follow the cam profiles and transfer the movements through push rods to the rocker arms. The rocker arms operate the inlet and exhaust valves through yokes (5).Lubrication for the rocker arms comes from the engine’s secondary oil supply manifold through drillings in the cylinder head and rocker arm bracket.The tappet assembly receives lubricating oil via channels in the engine block from the main supply manifold. For the roller and shaft, the oil is supplied through the guiding plunger.To compensate for heat expansion a clearance must exist between the rocker arm and yoke. Alladjustments have to be done on a cold engine only.Fig-4-1 Valve drive mechanism1. According to the passage, the best time to adjust the valve clearance is _____.A. before the engine is startedB. when the engine is runningC. after the engine has just been stoppedD. when something has gone wrong with the engine2. The roller and the tappet assembly are lubricated by means of ________.A. the main lube systemB. the secondary oil systemC. the special pumping systemD. the turbine oil system3. According to the passage, the valve drive mechanism does not include ______.A. tappet rollersB. push rodsC. nodular cast ironD. yokes and guide pins4. To close valves tightly, which clearance should be inspected according to the maintenance schedule?A. The one between the cam and the tappet roller.B. The one between the push rods and the ball joints.C. The one between the rocker aims and the yokeD. The one between two tubular push rods.AACCPassage 2Compressor cleaning during engine operationThe compressor may be cleaned by water injection during the engine operation. The cleaning process will have good results as long as the deposit formation has not gone too far. In ease a very thick hardened crest of dirt the compressor has to be dismantled for cleaning.In this method of cleaning the water is not acting as a solvent but instead removes the deposits mechanically by the impact of the water droplets. It is therefore recommended to use clean water without additives. The water should not contain any additives which might remain on the compressor blades.Periodically cleaning of the compressor (Fig. 4-2) prevents or delays excessive build-up of dirt but in no way replaces the usual overhauls where the turbocharger is completely dismantled.The turbocharger is provided with a water container (1). During the cleaning procedure the container is pressurized with the charge air (2) and from where the water is forced to the compressor inlet (3).1. Which of the following statements can be used to clean the compressor with the engine running?A. Water droplets Water with additives C. Charge air D. Hard crust2. What principal is used in this method of cleaning?A. The cleanser solves the deposits.B. The cleanser melts the deposits.C. The cleanser beats the deposits mechanically.D. The high pressure of the cleanser removes the deposits.3. Which of the following statements is not correct?A. The compressor needs regular cleaning.B. Periodical cleaning of the compressor contributes to reducing build-up of dirt.C. It’s not necessary to dismantle the turbocharger if periodical cleaning of the compressor is performed.D. Additives should better be avoided during the cleaning process.4. The cleaning water should not contain any additives, because_____.A. they may delay build-up of dirtB. they might remain on the blades of the compressorC. they may be forced to the compressor inletD. they are not good solventsACCBPassage 3Charge air coolerThe engine is equipped with a charge air cooler. The insert type charge air cooler is mounted in a welded casing (air trunk) . The trunk is bolted to the engine block.Standard is a two-stage cooler mounted. The first stage, through which the charge air flows, is cooled with water from the HT cooling system and cools the charge air till approx. 90 -100℃. The second stage is supplied with water coming from the LT water system and cools the charge air further till the required temperature of approx. 50℃. By controlling the water flow through the LT cooler the charge air temperature can be kept constant at the required temperature.The circulating coolant water should always be under positive pressure and should be as clean as possible. The operating air temperature should be maintained by controlling the coolant inlet temperature.Whilst the engine is running the air and coolant temperatures and pressures at inlet and outlet should be checked and logged periodically. Variations from normal indicate faults developing such as fouling of the film plates or obstruction of the water tubes.Check daily, during operation of the engine, the working of the telltale hole at the free end of the charge air receiver. The function of this hole is to inform the operator the presence of water in the charge air receiver. Under normal condition only compressed air should escape from this hole.1. According to the passage, the expression “HT”probably means ______.A. HIGH TANKB. HIGH TEMPERA TUREC. HEAT TRANSMISSIOND. HEAT TRANSFER2. In order to maintain the charge air temperature we should control ______.A. the coolant inlet temperature coming from the first stage coolerB. the coolant flow coming from the second stage coolerC. the coolant outlet temperature coming from the second stage coolerD. the coolant flow coming from the first stage cooler3. The charge air temperature departing from normal may indicate that _____.A. condensate can be formedB. only compressed air should escape from the telltaleC. the film plates are becoming dirty or the water tubes are blocked by scaleD. cooling water may have been carried into the cylinders4. The function of the telltale hole is to ______.A. detect whether compressed air has escaped from the holeB. control the coolant inlet temperatureC. determine whether the coolant water is under positive pressureD. inform the operator the presence of water in the charge air receiverBBCDPassage 4The vibration damper serves to reduce the torsional vibration generated by the crankshaft. The damper consists of a housing and a free rotating inertia ring supported by an axial bearing. It forms a totally enclosed unit. The free space between inertia ring and damper housing is filled with a high viscous fluid. When the crankshaft rotates at constant speed, the inertia ring will follow this movement. The combustion pressure exerted on each piston generates vibration in the crankshaft, and each variation generated by such a vibration will affect the movement of the inertia ring. The resulting shift of the ring to the damper housing is opposed by the viscous fluid and the vibration will be reduced.The energy, absorbed during the process, is converted into heat and then radiated to the surrounding air. Hence, proper ventilation of the damper is essential.The viscous damper fluid is during engine operation subjected to ageing and the fluid becomes more viscous. In sending fluid samples on a regular base to the damper manufacturer the rate in reduction of the viscosity can be determined. As sampling interval time is 6000 hours advised. Dampers with a too high fluid viscosity may cause crankshaft breakdown.The damper cover has two filling holes located 180o opposite each other and closed by screw-in filler plugs. If one of these plugs is accessible, a fluid sample container can be screwed in and a sample taken with the damper in place. On a spare damper, sampling must be effected with the damper in the vertical position.For liquid sampling, a special kit can be ordered from Stork-Wartsila Diesel.1. The general description of the vibration damper tells us that_____.A. the free space between inertia ring and damper housing is filled with a low viscous fluidB. when the inertia ring moves at constant speed , the crankshaft follows this movementC. the damper is made up of a housing and a free rotating inertia ringD. no ventilation of the damper is necessary as the vibration reduction process absorbs little energy2. Which of the following statements is not true about maintenance of the viscous damper?A. Sampling interval time for determining the quality of the fluid is 6000 hours.B. For liquid sampling, a special kit can be used.C. On a spare damper, sampling must be effected with the damper in place.D. The viscous fluid in a damper becomes more viscous as time goes by.3. During the engine operation, the vibration damper can_____.A. transfer the energy of the engineB. absorb the combustion heatC. oppose the crankshaft rotatingD. reduce the vibration of the crankshaft4. According to the passage, we learn that two filling holes in the damper cover are used _____.A. to recharge the fluidB. to ventilate the damperC. to fit the containerD. to take the sampleCCDDPassage 5The vibration damper employs a high viscous fluid to oppose the shift of the inertia ring to the damper housing. It is necessary to get samples to determine the rate in reduction of the viscosity. The steps to draw off the sample are as follows(Refer to the Fig. 4-3):1. Turn the engine until the drain plugs are easy accessible. Do not unscrew the drain plug until the damper is luke warm (approx. 40o C ).2. Carefully tap the locking of the upper drain plug backwards, using a punch, and unscrew the threaded plug. Do not yet remove the plug!3. Unscrew one cap nut from the (plastic) liquid container.4. Remove the drain plug and screw the liquid container instead.5. Remove the outer cap nut from the liquid container. Make sure that no machine oil or dirt can enter the liquid container!6. Screw the outer cap nut again, once the liquid has reached the open end of the liquid container. The filling-up period of the liquid container may take from a few seconds up to more than an hour, depending on the liquid condition.7. Unscrew the liquid container from the damper and fit the drain plug using a new joint ring (supplied with the mounting kit).8. Fit the second cap on the liquid container.If no sample can be taken in this way, you can proceed as follows:- If still no liquid appears after a while, remove the second drain plug, too.- Supply nitrogen of 3.5 bar maximum pressure through the open filling hole.If no nitrogen is available, air may be used, provided this air is properly filtered and dry.- Once the liquid has reached the open end of the liquid container, cut off the supply of nitrogen and screw the cap on the liquid container.- After the nitrogen supply has cut off, unscrew the liquid container, screw the second cap and fit both drain plugs.If a liquid sample cannot be obtained this way either, it can be assumed that the damper liquid has thickened to an inadmissible value, necessitating the replacement of the damper.1. According to the passage, we can learn that_____.A. before using the container to draw off the sample, both ends of it are closedB. the liquid container must be washed with machine oil before samplingC. liquid sampling must take more than one hourD. two liquid samples should be taken every time2. If the liquid sample cannot be taken any way, it means_____.A. nitrogen pressure is too lowB. the quantity of the damper fluid is insufficientC. the viscous fluid in damper becomes too thickD. the method of liquid sampling is incorrect3. Which statement is tree about the sampling process?A. The drain plug can be unscrewed regardless of the damper temperature.B. The drain plug should not be removed until one cap nut from the liquid container is unscrewed.C. The outer cap nut must be screwed before the liquid reaches the open end of the liquid container.D. The drain plug can be fit by using the old joint ring.4. If no sample can be taken by removing the first drain plug, then which of the following is done?A. The second drain plug should be removed too.B. A pressure of 5.3 bar should be applied.C. Clean and damp air is used instead of nitrogen if the latter is not available.D. The nitrogen supply continues when the liquid has reached the outer end of the liquid container. ACBAPassage 6At the first start, listen carefully for possible jarring(刺耳的) sounds. If anything is suspected, stop the engine immediately, otherwise stop the engine after 5 minutes’ idling. Check at least the temperatures of the main and big end bearings and of all other bearings which have been opened. Make visual inspection from below to the cylinder liners and piston skirts which have been opened. If everything is in order, restart.Check that there is no leakage of gas, water, fuel or lubricating oil. Especially observe the fuel lines, HP fuel pumps and injectors. Watch the quantities emerging from the leak oil pipes!Check that the starting air manifold is not hot at any cylinder (leaky starting valve may cause explosion!After overhaul, the following instructions are important:- check pressure and temperature gauges.- check the automatic alarm and stop devices.- check the pressure drop over the fuel filter and lubricating oil filter.- check the oil level in the oil sump/oil tank. Estimate the condition of the oil.- check the de-aerating of the engine circulating water system.- check the quantity of fuel leak.- check the telltale holes for leaks.- check the circulating water quality- check the cylinder pressures.- listen for jarring sounds.- check the crankcase pressure.- check the starting air manifold.Running-in is mainly intended to let piston tings "wear" to fit properly in the cylinder liner.Do not continuously run at constant load during the running -in process ( Fig. 4-4).It is important to vary the load several times. The ring grooves in the piston will have a different tilting angle at each load and consequently the piston ring has a different contact line to the cylinder liner wall.1. Paragraph 1 tells us that_____.A. if we hear vibration sounds, we should stop the engine quickly, or allow it to operate at low speed for5 minutes, then stop it and check everythingB. if we hear vibration sounds, we should stop the engine quickly, otherwise the engine will be stopped automatically after 5 minutesC. if we hear explosion sounds we should stop the engine then check everythingD. if we hear surging sounds, we should stop the engine immediately otherwise after 5 minutes the engine will be destroyed2. After overhaul, following instructions are important except_____.A. release air from the engine circulating water systemB. treat the circulating water if necessaryC. make sure the pressure drop is enough besides the fuel filterD. make sure the quantity of lube oil meets the requirement3. After piston overhaul, the running-in process should be carried out_____.A. periodically at steady loadB. occasionally at various loadC. continually at constant loadD. continually at various load4. When dealing with engine troubles, _____.A. no leakage of lubricating oil should be checked_____.B. quantities of oil emerging from the leak oil pipes must be watchedC. quality of the leak oil must be watchedD. the number of the leaking fuel lines should be checkedACDBPassage 7This sequence of events is made possible by substituting ports in the bottom of the cylinder wall for the inlet and exhaust valves. There are two groups of these ports, one for exhaust and the other for scavenging air, usually on the opposite sides of the cylinder, but in some designs both groups are arranged on the same side. The exhaust ports connect with the exhaust manifold, while the scavenging ports communicate with the scavenging air receiver in which low-pressure air is stored. The exhaust ports are slightly higher than the scavenging ports, so that they are uncovered by the piston while the scavenging ports are still closed.(The following 2 questions are based on the passage above. )1. From the paragraph above, we know that_____.A. In general, both exhaust ports and scavenging air ports are on the opposite sides of the cylinderB. The exhaust ports are on the opposite sides, but the scavenging air ports are on the same sidesC. The scavenging air ports are on the opposite sides, but the exhaust ports are on the same sidesD. Two groups of parts are never arranged on the same sides2. According to the above paragraph the exhaust ports link with_____.A. the exhaust valvesB. the scavenging air receiversC. the exhaust manifoldD. the scavenging portsThe engine is also provided with a governor which is designed to regulate the engine' s speed by adjusting the quantity of oil injected. When the engine runs at a speed higher or lower than that is set, the governor will act automatically reduce or increase the fuel oil supply so that the engine can be adjusted.( The following 2 questions are based on the passage above. )3. From this paragraph we can understand that_____.A. if the engine runs at a speed higher than that is set, the governor will increase the fuel oil supplyB. if the engine runs at a speed higher than that is set, the governor will decrease the fuel oil supplyC. the governor will not act until the engine runs at speed lower than that is setD. the governor regulates the engine's speed by adjusting the fuel oil injection4. The engine governor is used for_____.A. adjusting the fuel oil injection qualityB. adjusting the engine speedC. keeping the engine at higher speedD. keeping the engine at lower speedACBBPassage 8The lubrication system of an engine provides a supply of lubricating oil to the various moving parts in an engine. Its main function is to enable the formation of a film of oil between the moving parts, which reduces friction and wear. The lubricating oil is also used as a cleaner and in some engines as a coolant. The usual method of bearing lubrication is by forced feed system, which supplies oil to all bearings, so that a film of oil is maintained on the journal and bearing surfaces.(The following 2 questions are based on the passage above.)1. The forced feed system is put into use in order to _____.A. supply oil to all parts of the engineB. lubricate the bearing and the pistonC. maintain a film of oil on the journal and bearing surfacesD. maintain a film of oil on the piston surfaces only2. What is the function of lubricating oil?A. Formation of a film of oil between the moving parts, which reduces friction and wear.B. Used as a cleaner.C. As a coolant in engines.D. All of the above.Fresh water is used for the cooling of the cylinder jackets and covers of the main engine, whereas the various cooling liquids which circulate the engine are themselves cooled by sea water, such as, sea water is used for the cooling of the oil in the lubricating oil cooler as well as the fresh water. In an emergency situation, for example in the event of damage to a fresh water cooler or generator, the sea water pumps can be used to supply sea water to the fresh water cooling system, merely by removing the blind-flanges.(The following questions are based on the passage above. )3. In which situation we should use sea water system instead of fresh water system?A. When sea water pumps are damaged.B. When sea water cooler is damaged.C. When fresh water pumps are damaged.D. The blind-flanges are broken.4. The word “merely” in this paragraph could best be replaced by_____.A. onlyB. necessaryC. butD. ifCDCAPassage 9Because the exhaust gas driven turbo-blower cannot provide enough air at low engine speeds, the pressurized air should be cooled to increase the charge air density. As the air passes through the charge air cooler, its temperature may be reduced and moisture condensed, with the condensate in danger of being carried into the engine. So a water separator should be mounted beneath the bottom part of the engine inlet manifold.(The following 2 questions are based on the passage above.)1. A water separator is used in order to _____.A. keep the air from being carded into the engineB. keep the moisture from being condensedC. keep the danger from being carded into the engineD. take away the condensate from the air2. Why should we use a charge air cooler?A. In order to increase the charge air temperature.B. In order to increase the charge air pressure.C. In order to reduce moisture condensed.D. In order to increase the charge air density.Lubricating oil from the compressor will pass along the air lines and deposit on them, in the event of a cylinder air starting valve leaking, hot gases would pass into the air pipes and ignite the lubricating oil. If starting air were supplied to the engine, this would further feed the fire and could lead to an explosion inthe pipelines. In order to prevent such an occurrence, cylinder-starting valves should be properly maintained and the pipelines regularly drained. Also oil discharged from compressors should be kept to a minimum, by careful maintenance.(The following 2 questions are based on the passage above.)3. Which of the following may cause an explosion according to the passage?A. Starting air cannot be supplied into the engine.B. Air starting valve leaks and starting air is supplied into the engine.C. Cylinder-starting valves are properly maintained.D. Oil discharged from compressors is kept to a minimum.4. In order to avoid igniting the lubricating oil and leading to an explosion in the pipelines, _____.A. pipelines should be regularly drainedB. cylinder-starting valves should be properly maintainedC. oil discharged from compressors should be kept to a minimumD. A+B+CDDBDPassage 10Fuel oil is thought to be one of the main factors, having much to do with the operation and maintenance of an engine. The fuel oil system for a diesel engine can be considered in two parts: the fuel supply and the fuel injection system. When the atomized fuel is injected into the combustion space, ignition is not altogether instantaneous, a definite time lag being measurable between the time of injection and ignition. The period of ignition lag depends, among other factors, on the ignition quality of the fuel and the temperature of the compressed air.(The following 2 questions are based on the passage above.)1. This paragraph tells us that_____.A. ignition takes place before the injection of the atomized fuelB. ignition takes place simultaneously with the injection of the atomized fuelC. the period of ignition lag depends only on the quality of the fuel and the temperature of the compressed airD. the ignition quality of the fuel and the temperature of the compressed air are the two main factors determining the period of ignition lag2. “instantaneous瞬间的” in the passage probably means_____.A. simultaneous（同时的）B. afterC. beforeD. whenThe crankshaft is built up, the forged main bearing journals being shrunk into cast steel crank throws. The crank throws are displaced from each other to obtain the same number of degrees between the different crank throws. The alignment of the crankshaft in the bedplate should be checked at intervals to ensure that the shaft is not subjected to additional bending stresses, which, under extreme conditions, may cause crankshaft failure.(The following 2 questions are based on the passage above.)3. What does the word “alignment” mean in this passage?A. the bedplate is checked at intervalsB. to ensure that the shaft is not subjected to additional bending stressesC. to obtain the same number of degrees between the different crank throwsD. arrangement in a straight line4. The number of degrees between the different crank throws should beA. all the sameB. a little bit differentC. smallerD. largerDADAPassage 11During overhaul the safety roles have to be observed as required in order to prevent the danger of accidents. Special precaution is necessary when the engine is running with lagging removed. During overhauls, with the engine shut down, safety measures should be taken to avoid undesirable turning of the crankshaft. All pipes should be pressure-relieved before the repair work is started. Read the pressure gauges and/or check the pipes by carefully loosening the screw plugs or connections.(The following 2 questions are based on the passage above.)1. During overhaul, we have to observe the safety rules, in order to _____.A. avoid desirable turning of the crankshaftB. make all pipes pressure-relievedC. avoid the danger of accidentsD. let the crankshaft turn undesirably2. Before the repair work is started, _____.A. engine should be pressure-chargedB. the pressure in all pipes should be increasedC. all pipes should be pressure-relievedD. the air in some pipes should be relievedFresh water is used for the cooling of the cylinder jackets and covers of the main engine, whereas the various cooling liquids which circulate the engine are themselves cooled by sea water, such as, sea water is used for the cooling of the oil in the lubricating oil cooler as well as the fresh water. In an emergency situation, for example in the event of damage to a fresh water cooler or generator, the sea water pumps can be used to supply sea water to the fresh water cooling system, merely by removing the blind flanges.(The following 2 questions are based on the passage above.)3. From this paragraph, we can see that_____.A. the cylinder jackets and covers are cooled by fresh water and then by sea waterB. fresh water is used for the cooling of the cylinder jackets and covers of the main engineC. fresh water is used for the cooling of the main engineD. sea water is used for the cooling of both the fresh water and the main engine4. According to the paragraph, the term “various cooling liquids” refers to_____.A. fresh water and sea waterB. air and fresh waterC. fresh water and cooling oilD. sea water and airCCBCPassage 12The installation including expansion, preheating and pressurizing should be carried out in strict accordance with the instructions of the engine manufacturer to obtain a correct and trouble free installation. There should be no reason to carry out any maintenance to the cooling water system unless the temperatures in the cooling water system start to rise without any clear reason. Normally all inspections andmechanical cleaning of the cooling water system components are better to do at planned intervals.The circulating fresh water should be treated according to the recommendations to prevent corrosion and deposits. If the risk of freezing occurs, drain all cooling water spaces. Avoid using fresh cooling water. Save the drained water and use it again.In completely closed systems the fouling will be minimal ff the cooling water is treated according to the instructions.Depending on the cooling water quality and the efficiency of the treatment, the cooling water spaces may or may not foul over the length of time. Deposits on cylinder liners walls, cylinder heads and cooler stacks should be removed to avoid disturbance in the heat transfer to the cooling water with thermal overload as consequence.The necessity of cleaning should be investigated, especially during the first year of operation. This may be done during overhaul of a cylinder liner inspection for fouling and deposits on the liner and block. The cylinder head cooling water spaces can be checked by removing the water space plugs in the sides of the cylinder heads. The turbocharger can be checked through the inspection covers of the water spaces. The deposits can quite vary in structure and consistency. In principle, it can be removed mechanically and/or chemically.1. The sentence “The circulating fresh water should be treated ...” (paragraph 2), most probably means that the fresh cooling water should be _____.A. drained to avoid freezingB. collected when drainingC. changed at planned intervalsD. analyzed and dosage added if necessary2. Which of the following statements is true?A. The cooling water system does not need maintenance if it works normally.B. The circulating fresh water does not need special treatment when in normal operation.C. In completely closed cooling water system scale will not be formed.D. Deposits in the cooling water system may not be formed over the length of time.3. Which of the following statements about the first sentence in paragraph 1 is true?A. The engine is installed by the manufacturer free of charge.B. The engine should be warmed in advance before installing.C. The installation must be conducted according to the instructions.D. The installation may be carried out freely.4. We can _____ to find out about the scale in the cooling water space of the cylinder cover.A. overhaul the cylinder linersB. remove the plugs in the sides of the headsC. open the inspection coversD. withdraw the pistonsDACBPassage 13Mechanical cleaningA great deal of the deposits consists of loose sludge and solid particles which can be brushed and rinsed off with water. On places where the accessibility is good, e.g. cylinder liners, mechanical cleaning of considerably harder deposits is efficient. In some cases it is advisable to combine chemical cleaning with a。

轮机英语真题42期甲类三管轮

轮机英语真题42期甲类三管轮中华人民共和国海事局20__7年第1期海船船员适任证书全国统考试题(总第42期)科目：轮机英语试卷代号：805适用对象：无限、近洋航区3000KW及以上船舶二/三管轮（本试卷卷面总分100分，及格分为70分，考试时间为100分钟）答题说明：请选择一个最合适的答案，并将该答案按答题卡要求，在其相应位置上用2B铅笔涂黑。

第1题至74题，每题1分，第75题至78题，每题1.5分,第79题至80题,每题10分。

一、单项选择题1.The ______engine is used for alternators and some times for main propulsion with a gearbo_ toprovide a propeller of between 90 to 120 rpm.A.four-strokeB.two-strokeC.slow speedD.reversible2.The discharge flow of a reciprocating pump is ______.A.steadyB.in pulsationC.continuousD.large3.The cetane number of a diesel fuel oil indicates its ______.A.viscosityB.acid contentC.heating valueD.ignition quality4.Always ensure that the turning gear is______, even at the quay, the wave from other ships mayturn the propeller and thus the engine.A.disengagedB.engagedC.assembledD.disassembled5.Camshafts are usually driven by timing gears or ______.A.push rodschain drivesC.rocker armsD.flywheels6.The cylinder oil is pumped into the cylinder (via non-return valves) when the piston rings pass thelubricating orifices, during______.A.the upward strokeB.the downward strokeC.the power strokeD.the suction stroke7.The total starting air capacity required for reversible main engines is to be sufficient for a least______.A.si_ consecutive(连续的) startsB.eight consecutive startsC.ten consecutive startsD.twelve consecutive startsA dirty diesel engine oil filter element can best be detected by______.A.visual inspection of the elementsB.the pressure drop across the filterC.high lube oil sump temperatureD.decrease in oil viscosity from the filter9.Before a marine diesel engine is started the cylinders and pistons must be ______.A.cooled to ropriate temperatureB.warmed up gradually to ropriate temperatureC.opened up and renewedD.ground and polished10.A controllable pitch propeller on a diesel driven vessel eliminates the need for ______.A.friction clutchesB.disconnect clutchesreversing gearsD.reduction gears11.The ma_imum pressure developed by a waste heat boiler is determined by the main enginee_haust ______.A.gas positionB.gas temperatureC.pressureD.timing 12.______continuously e_tract the crankcase atmosphere, via a pipe system, and move it past asensitive and accurate opacity (不透明)measuring track.A.The oil mist detectorsB.The smoke detectorsC.An oily water monitorD.Oil discharge monitoring and controlling system13.The water in a ing au_iliary boiler should be tested daily for ______.A.dissolved o_ygenB.chloridesC.sludgeD.dissolved nitrogen14.A firebo_ e_plosion in an automatically fired au_iliary boiler may be the result of ______.A.e_cessive purging before lighting offB.insufficient trail for ignition periodC.a faulty transformer in the ignition circuitD.insufficient purging after lighting off15.A feed pump for an au_iliary boiler might lose suction if the______.A.boiler water level is lowB.feed-water is too hotC.boiler demand is lowD.feed-water is too cold16.The gear and screw pumps are classified as______.A.variable stroke pumpsB.multistage pumpsC.positive displacement pumpsD.triple-ported pumps17.The pressure of a liquid leaving the pump can be referred to as the ______.A.total headB.discharge headC.positive suction headD.suction head18.Which of the valves listed will be cycled from fully open to fully closed when the handle isturned 90 degree?A.A rising stem gate valveB.A globe s valveC.A check valveD.A butterfly valve19.A pump shaft that is bent or distorted should normally be ______.A.repaired by a suitable welding processB.straightened by lying heat and torsionC.reconditioned by metallizing and machiningD.replaced with a satisfactory spare20.A centrifugal pump may fail to deliver water when first started if the ______.A.water seal pipe is pluggedB.pump is not primedC.seal ring is improperly locatedD.impeller is flooded21.Which of the follog conditions must e_ist for heat to flow from one object to another?A.The two objects must be in physical contact.B.The two objects must be the same size.C.There must be an e_isting temperature differential.D.There must be an e_isting weight differential.22.The dew point of air is reached when the wet bulb temperature is ______.A.twice the dry bulb temperatureB.10℃ above the dry bulb temperatureC.5℃ above the dry bulb temperatureD.equal to the dry bulb temperature23.If air at 95 ℃ dry bulb temperature and 50 relative humidity is conditioned to 75 ℃ dry bulbtemperature and 50 relative humidity, it is an e_le of ______.A.cooling onlyB.cooling and humidifyingC.cooling and dehumidifyingD.adiabatic(绝热的) cooling24.In order to achieve greater dehumidification(除湿) with an air conditioning system, you should______.I.reduce the cooling coil temperature II.increase the re-heater temperatureA.I onlyB.II onlyC.Both I and IID.Neither I nor II25.Oily water separators are used to ensure that ships don"t discharge oil when pumping out ______.A.ballast waterB.boiler waterC.bilge waterD.sewage water26.When started, a plete oily water separating unit is firstfilled______.The oily water mi_tureis then pumped through the inlet pipe into the coarse separating partment.A.with dirty waterB.with clean waterC.by oily waterD.by mi_ed water27.Which is the pollution prevention equipment?A.booster pumpB.evaporatorC.incineratorD.cooler28.The oil sludge is burnt in the ______onboard.I’ll show you the ashes.A.boilerB.main engineC.au_iliary engineD.incinerator29.Most marine biological sewage treatment plants consist of all the follog statements e_cept______.A.aeration tanksB.settling tanksC.disinfection agentD.anaerobic bacteria (厌氧菌)30.Great care is dedicated to the removal of _____from the scavenge air.A.gravityB.viscosityC.densityD.humidity31.Dirty oil must be _____before being used again.A.mi_ed with clean oilB.purifiedC.heatedD.strained32.When a vacuum boiling evaporator works, the hot jacket waterwill pass over the tube stack and___the sea water passing through the tubes.A.disposeB.dissolveC.heatD.dissipates33.When securing a flash-type evaporator for an e_tended period of time, you should ______.A.fill the unit with saltwaterB.fill the unit with descaling poundC.pletely drain the unitD.tightly seal the unit to e_clude air34.Among the basic categories of equipment, which of the follog are used to allow the hydraulicenergy to be controlled?A.hydraulic pumpsB.valvesC.hydraulic cylindersD.hydraulic motors35.Positive displacement, helical gear(斜齿轮) pumps are well suited for pumping oil because______.A.stuffing bo_es eliminate the leakage problems usually associated with other gear pumpsB.it is not necessary to closely maintain design clearances with this pumpC.they are essentially self-priming and produce a high suction liftD.these pumps are designed with e_treme tooth angles36.The oil in a cargo ch gear bo_ should be sled periodically(周期性地) to ______.A.prevent the gear bo_ from leakingB.prevent the oil from being inflammable(易燃的)make sure it has not bee contaminated(污染)D.make sure the motor bearings are lubricated37.If an anchor dlass has been idle for some time, you should______.A.repack all valve stemsB.lubricate it prior to useC.replace the foundation boltsD.balance the warping heads 38.A mooring ch should be equipped with mechanical brakes capable of holding ______.A.half the breaking strength of the mooring lineB.the full breaking strength of the mooring lineC.the ma_imum e_pected tension(张力) of the mooring lineD.50 over the working tension of the mooring line39.Hydraulic cranes must be properly warmed-up before being operated because ______.A.warm-up allows the hydraulic system to bee charged with oilwarm-up allows the relief valves to be properly testedC.hydraulic strainers operate only during the warm-up periodD.hydraulic fluid must be at the proper viscosity40.The current flog first in one direction and then in another is called ____current.A.a rushB.an alternatingC.a directD.an e_citing41.The frequency of an alternator at a given RPM is determined by the ______.A.number of turns of wire in the armature coilB.number of magic polesC.strength of the mags usedD.output voltage42.While paralleling two AC generators using synchronizing(同步的) ls only, both ls willgo dark when the generators are ______.A.running at the same speedB.groundedC.of the same polarity(极性)D.in phase43.The load sharing characteristics of two diesel generators operating in parallel are mostlydependent on their governor ______.A.load limit settingsB.idle speed settingsC.speed limit settingsD.speed droop settings44.Electric insulation is made of organic substances and so gradually ______with age.A.deterioratesB.increasesC.are fouledD.bees better45.The main generators are connected to ______.A.distribution boardsB.section boardsC.emergency switch boardsD.main switch boards46.The operation of _____two alternators requires the voltages to be equal and also in phase.A.controlB.series-mountingC.runningD.paralleling47.______is a machine by which electrical energy is transformedinto mechanical energy.A.An alternatorB.An electric motorC.A diesel engineD.A main switchboard48.A ground in an electrical circuit outside the engine room ______.A.cannot be detected under normal conditionsB.is of no consequence to engineering personnelC.is indicated at the branch circuit breaker panelD.is indicated by the ground detecting ls on the main switchboard49.Time delayed or delayed action-type fuses are designed to ______.A.prevent grounds in branch circuitsB.prevent opens in motor circuitsC.permit momentary overloads without meltingD.guard lighting and electronic circuits50.When voltage and current developed in an AC circuit reach their peak values at the same time,the power factor is ______.A.laggingB.leadingC.ma_imumD.minimum51.When there is a fire in a large electric motor, normally the very FIRST step is to ______.A.secure the electric supplyB.ventilate area to remove smokeC.start the fire pump and lead out hoseD.ly foam52.Before “stand by” is rung on the engine telegraph, it is usual to give the main diesel engine a brieftrial ______ahead and astern.A.with powerB.on powerC.with airD.on air53.Bridge orders must be ______and a record of any required changes in speed and direction shouldbe kept.A.slowly carried awayB.carried out with a period of delayC.promptly carried outD.paid by the captain54.After the order " ______" is given, the air system is shut down, the turning gear put in.A.Finished With EngineB.S The EngineC.Stand-by EngineD.Slow-down Engine55.A tank has been sealed and unventilated(不通风的) for a long period of time.Which of thefollog conditions does this indicate?A.The tank is safe to enter.The tank is especially dangerous to enter.C.Carbon mono_ide(一氧化碳) is present.D.Water vapor present when the tank was sealed has o_idized(使氧化).56.Fires involving bustible metals are classified as ______.A.class "A" firesB.class "B" firesC.class "C" firesD.class "D" fires57.The three basic ponents of a fire are chain reaction, heat, fuel, and ______.A.carbon mono_ideB.o_ygenC.carbon dio_ideD.any gaseous substance58.CO2 e_tinguishes a fire by __________.A.a blanket of bubbles formed on the surface of the firesmotheringC.isolating the heat from the fuelD.cooling59.Seawater may be used for drinking water ______.A.at a ma_imum rate of two ounces(盎司) per dayB.after mi_ing with an equal quantity of fresh waterC.if gather during or immediately after a hard rainD.under no circumstance60.Obviously, for a given fuel oil, its pour point is ______its cloud point.A.lower thanB.higher thanC.as same asD.better than61.Now that the valve is not worth ______, I suggest it ______.A.to repair/renegrepairing/renegC.to repair/ be renewedD.repairing/be renewed 62.When a vessel is in dry-dock, the vessel"s engineers should ______.A.e_amine the condition of the propellerB.chip and paint all hull protection zincsC.install new docking plugs in all cofferdamsD.inspect the hull for hogging or sagging63.The additional mark ______in the Classification Certificate for Machinery represents thepropulsion aratus is remotely controlled on the navigating bridge control station, and engine room is watched by duty personnel.A.BRCB.MCCC.AUT-0D.AUT-164.Oil Record Book Part I shall be provided to ______.every oil tankerB.every ship of 400 tons gross tonnage and aboveC.every shipD.any ship65.“Inability to provide for the first watch at the mencement of a voyage and for subsequentrelieving watches persons who are sufficiently rested and otherwise fit for duty.” is considered to be one of the detainabledeficiencies(缺乏) under ______.A.the SOLAS ConventionB.the MARPOL ConventionC.the STCW ConventionD.the LOAD LINE Convention66.The Port State Control officer may witness a fire drill carried out by the crew assigned to theseduties on the ______.A.Navigation Log BookB.Engine Room Log BookOil Record BookD.Muster List67.When deciding the position of the engineering watch, which may include _____ropriately,many factors shall be taken into account.A.satisfied engineersB.qualified ratingsC.satisfied chief engineerD.qualified chief engineer68.During an engine room watch if immediate action is necessary to ensure safety of the ship, itsmachinery and crew, ______.A.the chief engineer must be informed at firstB.the captain must be informed at firstC.it must be taken by the duty engineerD.the generator engine must be sped69.One of the methods NOT usually allowed in cleaning up oil spills in the United States is ______.skimmersB.strawC.dispersantsD.sawdust70.According to the international regulations concerning the prevention of pollution of sea areasfrom ships, the disposal into the sea of all plastics is ______.A.weleB.admitted in some special sea areasC.prohibitedD.acceptable71.In cleaning up an oil spill, the use of chemical agents would ______.A.absorb the oil for easy removalB.remove the oil from the waterC.disperse(分散) or dissolve the oil in the waterD.not affect the oil72.The main objective of the SOLAS Convention is to specify______for the construction,equipment and operation of ships, patible their safety.A.at most referencesB.at least referencesC.ma_imum standardsD.minimum standards73.These acid residues must be prevented from entering the crankcase, otherwise the lube oil wouldbe _______.A.optimizedB.emulsifiedC.contaminatedD.o_idated74.The ship security officer shall have knowledge and have received training, taking into account theguidance given in Part B of______.A.the ISM CodeB.the ISPS CodeC.the IBC CodeD.the IGC Code二、关联题（关联题题干下有4个小题，每小题4个选项）The clearly visible benefit of RT-fle_ engines is their smokeless operation at all ship speeds.This is achieved by the superior bustion performance with the mon-rail fuel injection.This system maintains the fuel injection pressure at the optimum level right across the engine speed range, ensuring optimum bustion under all operating conditions.In addition, a selective shut-off of single injectors at very low speeds and an optimized e_haust valve timing help to keep smoke emissions below the visible limit.Sulzer RT-fle_ engines also have the advantage of steady running at lower speeds than engines with mechanically-controlled injection.They can run very steadily, and without smoking, at 10-12 of nominal speed, which for the RT-fle_ 60C is about 10-14rpm.This is made possible by the precise control of injection, together with the higher injection pressures achieved at low speed, and the sequential shut-off injectors.75.According to above massage, the advantage of mon-rail injection is______.A.smokeless operationB.shockless operationC.noiseless operationD.no vibration operation76.According to above massage, RT-fle_ engine can optimize______.① fuel injection pressure② b ustion③ e_haust valve timingA.①②B.①②③C..③D.②77.The key feature of the Sulzer RT-fle_ system is that it gives plete freedom in the _____andoperation of fuel injection and e_haust valve actuation.A.meteringB.timingC.controlD.using78.The RT-fle_ engine can run at very low speed, this is made possible by follog things e_cept_______.A.the precise control of injectionB.the higher injection pressuresC.the optimized e_haust valve timingD.the sequential shut-off injectors 三、中译英（共2题，请将答案写在答题纸上）79、（轮机日志）上午10时30分，由于不明原因运行中NO.1发电机跳闸，导致全船失电,NO.2发电机自动起动恢复正常供电。

三管轮轮机英语大证考试真题40期

中华人民共和国海事局2006年第2期海船船员适任证书全国统考试题(总第40期)科目：轮机英语试卷代号：805适用对象：无限、近洋航区3000KW及以上船舶二/三管轮（本试卷卷面总分100分，及格分为70分，考试时间为100分钟）答题说明：请选择一个最合适的答案，并将该答案按答题卡要求，在其相应位置上用2B铅笔涂黑。

第1题至74题，每题1分，第75题至78题，每题1.5分,第79题至80题, 每题10分。

一、单项选择题1.______usually helps to induce air movement to assist combustion.A. Cylinder coverB. Main bearingC. The exhaust valveD. The piston movement2.The mechanical efficiency of an engine is always less than 100% ______lossesoccurring in the form of friction.A. becauseB. sinceC. due toD. owing3.The exhaust ports are located around the lower part of the cylinder liner, ______theproducts of combustion are driven by scavenging air.A. in whichB. by whichC. through whichD. from which4.The third engineer took the ______and checked the tank table in the office andrecorded all relevant data, as well as calculated the bunkering.A. water levelB. sump levelC. ballast tank levelD. ship's trim5.The lubricating pipes and ducts should be blown out with ______.A. the atmosphereB. the fresh waterC. the compressed airD. the chemical compounds6.______neutralizes the acid conditions and ______cleanses the rings and grooves.A. The detergency/the alkalinityB. The alkalinity/the detergencyC. The inhabitant/ the waterD. The additives/the distilled water7.If the engine does not start on air, it may be due to______.A. low compression of the fuel pumpsB. incorrect timing of fuel pumpsC. the starting air valves stuckD. air-locks in fuel oil pipeline8.______device is provided to prevent starting air from being admitted to thecylinder before the reversing is completed.A. An automaticB. A transmissionC. A self-regulatingD. An interlocking9. A reduction in load on a diesel engine results in ______of speed of the crankshaft.A. a reductionB. an increaseC. an outingD. a downwards10.Fuel injection uses the jet pump system and a Woodward type hydraulic ______isused to control engine speed.A. controllerB. governorC. instrumentD. apparatus 11.The overspeeding of the diesel engine driving an electric generator could cause______.A. low voltage trip to tripB. reverse power trip to tripC. damage to windingsD. excessive exhaust temperatures12.Any carbon built up on surfaces must be washed away by ______additives andheld in suspension by a ______additive.A. dispersant /detergentB. detergent/dispersantC. dispersant /dispersantD. detergent/detergent13.While flowing through the volute in a centrifugal pump, part of the ______energyof the liquid is converted to ______energy.A. kinetic/pressureB. kinetic/essentialC. pressure/kineticD.pressure/height14.Gear pumps are ______because they discharge a near constant amount of liquidregardless of pressure.A. negative displacement typeB. turbine typeC. positive displacement typeD. mixed-flow type15.Operating a rotary pump at speeds in excess of design requirements couldcause______.A. decreased clearances between rotating partsB. decreased slippage to the suction side of the pumpC. air binding in the discharge portsD. erosion and excessive wear16.The fire pumps must be capable of delivering a total quantity of water at a definedhead , not less than______of the total bilge pumping capacity.A. one-thirdB. two-thirdsC. one-fourthD. two-fourths17.The bilge system has been performing well; however, the aft starboard engineroom bilge-well suddenly fails to be pumped out. Which of the following should be done first to determine the cause?A. Open the bilge pump for inspection.B. Remove each of the manifold valves.C. Remove only the manifold valve to the affected bilge-well.D. Attempt to pump out another bilge well to determine if the entire system isaffected.18.Which of the following statements describes one of the functions of the ballastsystem?A. To permit flooding of any fuel oil storage tank on any class of ship.B. To use it as a secondary service system.C. To store reserve feed or potable water for extended cruises.D. To stabilize the ship by flooding certain designed tanks with seawater.19.If an operating auxiliary boiler has a water pH reading of 7, you should ______.A. bottom blow the boilerB. treat the water with caustic soda1C. treat the water with chemical scavengersD. reduce the water alkalinity to recommended readings20.Where tanks are arranged for either oil or ballast ______must be fitted in thepipeline.A. a change-over chestB. a head tankC. a emergency bilge pumpD. an aircooler21.The most common cause of scale formation in an auxiliary boiler is ______.A. concentrations of calcium sulphate in the boiler waterB. fuel oil in the feedwaterC. improper treatment of the feed water with calcium sulphateD. excessive feed water alkalinity22.The ______of the gravity disc is too big. It cause oil to flow through the wateroutlet. We changed the disc and no oil is found in the water outlet.A. gravityB. diameterC. circumferenceD. cylinder23.Oil water separators are used to ensure that ships don't discharge oil when______bilge water.A. to pump offB. being pumpedC. pumping outD. it pumping out24. A high rate of separation between oil and water is favored by______.A. large size of oil globuleB. low temperature25. C. high viscosity D. high flow rate26.Medium speed engines have a ______power to weight ratio than the slow speedtwo strokes, but due to the higher speeds tend to have ______maintenance intervals.A. higher/reducedB. higher/increasedC. lower/reducedD. lower/increased27.Oil Record Book Part I shall be provided to every oil tanker of 150 tons grosstonnage and above and every ship of 400 tons gross tonnage and above, ______oil tankers, to record relevant machinery space operations.A. as well asB. as long asC. rather thanD. other than28.It is important with all hydraulic systems to ensure that interlocking arrangementsprovided for pump or motor control levers are before the pump driving motor can be started.A. in the port positionB. in the starboard positionC. in the neutral positionD. to be dismantled29.The hand steering is a method by which the motion of the rudder is controlledwith______.A. a motor-driven steering wheelB. a pneumatic steering wheelC. a hand-driven steering wheelD. an electric steering wheel30.With reference to operating a four-ram steering gear system under emergencyconditions, which one of the following statements is incorrect ?A. Only one pump should be used at any timeB. The ship speed should be reduced to 70% of the normalC. Watch keeping of the steering gear should be increasedD. Limitations of the steering gear should be logged but the bridge need not beinformed31.Which of the following problems can result in below normal pressure in theintercooler of an operating low pressure air compressor?A. Defective pressure pilot valveB. Defective receiver relief valveC. Leaking intake valves on the high pressure cylinderD. Leaking discharge valves on the low pressure cylinder32.The air charge leaving an intercooler, or after-cooler of an air compressor can beexpected to be __.A. superheatedB. super-cooledC. at or below the dew pointD. all of theabove33.Open the ______of inter cooler before starting an air compressor.A. cylinder coverB. cooling waterC. oil cupD. drain valve34.Sludge may form in the crankcase of an air conditioning compressor as a resultof______.A. bubbling refrigerantB. overheating and oxidationC. lowered operating temperaturesD. reducing the cloud or flash point35.If a refrigeration system were short of refrigerant, the condition would result in______.A. continuous running of the compressorB. high suction pressureC. high discharge pressureD. short cycling of the compressor on the waterfailure switch36.Which of the statements listed concerning heat transfer is correct?A. Heat is always transferred at a constant rate.B. Heat transfer rate increases as temperature difference increases.C. The rate of heat transfer is not affected by temperature difference.D. The high temperature region is known as a heat sink.37.The purpose of the low pressure cutout switch is to______.A. maintain liquid refrigerant at the suction of the compressorB. maintain a preset suction pressure to the compressorC. start and stop the compressor at preset operating pressuresD. operate at minimum efficiency38.When a refrigeration compressor is in the 'off' cycle, the thermal expansion valvewill______.A. always be wide open when the compressor restartsB. continue to operate as if the system were in operationC. remain open until evaporator pressure equalizes, then close until the compressorrestartsD. always be completely closed until the compressor restarts239.The star formation is most commonly used and requires ______on the alternator.A. one slip-ringB. two slipringsC. three slipringsD. four sliprings40. A constant output voltage from an AC generator is maintained by the ______.A. prime mover governorB. exciter generatorC. voltage regulatorD. reverse power relay41.Prior to any overhaul work on electric equipment, it is important to ensure thecircuits are______.A. liveB. deadC. excitedD. on line42.Which of the following should be the FIRST step in removing a generator fromparallel operation?A. Trip the generator off the switchboard.B. Turn off all electrical equipment.C.Remove the load from the … offgoing' generator.D. Increase the cycles of the generator staying on the line.43. A … dead front' switchboard is one ______.A. without switches on itB. with insulated switches and no exposed terminalsC. without circuit breakersD. without safety hand rails nor rubber mats44.In ______the control action is independent on the output.A. a closed loop control systemB. an open loop control systemC. a boiler control systemD. a steering gear automatic control system45.Every precaution must be taken to avoid ______.A. sparking being taking placeB. to spark taking placeC. sparking to be taken placeD. sparking taking place46.The ______is used to measure the volume of a liquid or gas through a pipelinewithin any given period of time.A. flowmeterB. viscometerC. micrometerD. feeler47. A salinity indicator is used to determine the ______.A. cause of salt contaminationB. location of salt water contaminationC. chemical makeup of feed-waterD. level of alkalinity in condensate48.In order to accurately measure very low pressures, which of the instruments listedshould be used?A. Compound gageB. Bourdon tubeC. ManometerD. Deadweight gage49. A circuit breaker and a fuse have a basic similarity in that they both ______.A. can be reset to energize the circuitB. should open the circuit when overloadedC. will burn out when an over current flow developsD. all of the above50.The main difference between a motor control circuit containing low voltageprotection and low voltage release is that the latter contains______.A. a magnetic operating coilB. normally open line contactsC. thermal-overload protectionD. a momentary-contact start button51.If the engine ______for a long period, there will be a danger of frost.A. must stand inoperativeB. has to stand inoperativeC. must be stood idleD. will stand idle52.If fuel injection to a four-stroke/cycle diesel engine begins earlier than designed,ignition may be delayed because the ______.A. cylinder compression pressure may not be high enoughB. cylinder compression temperature may be too highC. fuel oil injection pressure may not be high enoughD. scavenge and purge process is incomplete53.Improper cooling of a diesel engine cylinder liner due to the accumulation of scaledeposits, may cause______.A. low compression pressureB. increased piston wearC. increased cylinder lube oil consumptionD. poor contact between compression rings and liner54.Poor combustion in a diesel engine can be caused by______.A. high compression pressureB. low intake air temperatureC. low exhaust pressureD. high scavenge air temperature55.High exhaust temperature and black smoke exhausting from an auxiliary dieselengine can be caused by ______.A. engine overloadB. low combustion temperatureC. plugged fuel nozzle holesD. excessive compression pressure56.In a diesel engine, excessive cylinder liner wear will cause ______.I. increased blow-by II. wear between the piston ring and grooveA. I only is correctB. II only is correctC. both I and II are correctD. neither I or II are correctbustion knock can occur in the cylinders of a diesel engine under anycondition permitting ______.A. a shortened ignition delay periodB. a lean fuel/air mixtureC. excess fuel in the combustion chamberD. rapid vaporization of injected fuel droplets58.The load on the crosshead pin is always______, so it is the ______half of thebearing which is subject to wear.A. upwards/topB. upwards/bottomC. downwards/topD. downwards/bottom59.If the action of the engine indicates that some of the cylinders are not firing, theones affected may be determined by watching ______.3A. the bad smokeB. the smoky exhaustC. the exhaust temperatureD. the peak pressure60. A centrifugal pump can‟t supply water after starting. You should firs tly check ___.A. discharge valveB. power supplyC. packing glandD. bearing lubrication61.Which of the motors for the devices listed below is fitted with an instantaneous(瞬时的) overload relay?A. FanB. PumpC. WinchD. Machine tool62.If ______are taken at regular intervals, any unequal distribution of load will beeasily found out.A. indicator diagramsB. nomo-gramC. temperature readingsD. pressure readings63.Oil mist detectors are usually used on board to detect oil mist density within _____.A. the engine crankcaseB. the engine scavenge boxesC. drain tanksD. fuel tanks64.The resistance of electric wire will decrease as its ______.A. length increasesB. cross-sectional area increasesC. temperature increasesD. percent of metallic purities increases65.It is well known that the wh ole power distribution of the ship‟s electrical servicesmainly depend on the______.A. sub-boardsB. main switchboardsC. emergency switchboardsD. distribution boards66.The Company should ensure that ______documents are promptly removed.A. absoluteB. updatedC. outdatedD. new67.You may improve a vessel's stability by ______.A. keeping the fuel tanks topped offB. increasing the free surface effectC. keeping the fuel tanks at least half fullD. keeping at least one fuel tank empty for slops68.The most common type of containment device for spilled oil on the water is the useof ______.A. strawB. boomsC. skimmersD. chemical dispersants69.We‟ve trie d many ways, but all in vain. Only in this way, ___the problem, I‟m sure.A. can we solveB. we can solveC. we will solveD. can be solved70.It was ______midnight that we removed the trouble and went back to our cabins.A. untilB. not untilC. not beforeD. not after71.The flash point of a petroleum product is an indication of its______.A. viscosityB. pour pointC. volatilityD. lower explosive limit72.If there has been a fire in a closed unventilated compartment it may be unsafe toenter because of ______.A. unburned carbon particlesB. excess nitrogenC. a lack of oxygenD. excess hydrogen73.Tell your men ______the rules and procedures of working when dismantling theequipment.A. not to go againstB.don‟t go againstC. not go to againstD. to not goagainst74.The minimum number and capacity of bilge pumps and fire pumps and theirdistributing within the ship is governed by______.A. Classification Society RulesB. National requirementsC. The IMO International Convention for the Safety of Life at SeaD. All of the above.75.The SOLAS Convention in its successive forms is generally regarded as the mostimportant of all international treaties concerning the ______of merchant ships.A. pollutionB. economizationC. safetyD. efficiency二. 关联题（关联题题干下有4个小题，每小题4个选项）The windlass is the usual anchor-handling device where one machine may be used to handle both anchors. A more recent development, particular on largervessels, is the split windlass where one machine is used for each anchor.The rotating units of a split windlass consist of a cable lifter with shaped snug to grip the anchor cable, a mooring drum for paying out or letting go of mooringwires and a warp end for warping duties. Each of these units may be separatelyengaged or disengaged by means of a dog clutch, although the warp end is oftendriven in association with mooring drum. A spur gear assembly transmits the motor drive to the shaft where the various dog clutches enable the power take-off.Separate band brakes are fitted to hold the cable lifter and the mooring drum when the power is switched off.The cable lifter unit is mounted so as to raise and lower the cable from thespurling pipe, which is at the top and the chain or cable locker.Anchor capstans are used in some installations where the cable lifter rotatesabout a vertical axis. Only the cable lifter unit is located on deck, the drivingmachinery being on the deck below.76.According to the passage, the rotating units of a split windlass don‟t include______.A. a cable lifterB. a mooring drumC. a chain lockerD. a warp end77.The word “assembly” in the sentence “ A spur gear assembly transmits the motordrive to the shaft where the various dog clutches enable the power take-off.” is as the same meaning as ______.A. unitB. shaftC. dog clutchD. spurling pipe78.One of the functions of a dog clutch is ______.A. to transmit the motor drive to the shaft4B. to hold the cable lifter and the mooring drum when the power is switched offC. to engage or disengage the rotating units of a split windlass separatelyD. to handle both anchors79.Which of the following statements is correct ?A. A more recently development, particularly on larger vessels, is the splitwindlass where one machine is used to handle both anchors.B.The word “machine” in the passage refers to the windlass.C. Anchor capstans are used in some installation where the cable lifter rotatesabout a horizontal axis.D. Both the cable lifter unit and the driving machinery are located on deck.三、中译英（共2题，请将答案写在答题纸上）79. （修理单）辅助锅炉水空间需采用化学方法除去水垢，如发现有烧坏的管子则换新，安全释放阀调至设定值。

甲类三管轮轮机管理新增试题集

41-45 3000千瓦以上（二管／三管）管理新增加的试题题以下哪种船舶不属于ISM 规则中规定的“散装船”？A、矿砂船B、兼用船C、滚装船D、煤船为保证船舱的抗沉性，货船一般采用：A、一舱制B、二舱制C、三舱制D、四舱制船舱压载水公约规定，对于使用泵入～排出方法交换压载水的船舱，泵入～排出_____于每一压载水舱容积应视为达到标准。

A、一倍B、二倍C、三倍D、四倍美国《90油污法》规定，造成油污染事故的3000总吨以下的液货船赔偿限额为每总吨1200美元，或总额_____万美元，取其大者。

A、５０B、１００C、２００D、５００目前海船上广泛使用球鼻首，关于球鼻首作用的正确论述是________。

A、增加船首强度B、建造方便C、便于靠离码头D、减少兴波阻力船规规定，对锅炉和热油加热器的检验应包括外部检验和内部检验，对锅炉进行外部检时应进行______，包括______。

A、总体检查/安全保护装置、燃油系统功能及燃油应急切断装置等B、一般性目视和查看使用记录/安全保护装置C、了解和查看使用记录/对锅炉安全阀在蒸汽压力下进行校验D、外观目视/对锅炉进行水压试验ISPS规则不适用于：A、从事国际航行的客船B、从事国际航行的500吨及以上的货船C、服务国际航行船舶的港口设施D、缔约国政府的公务船在辩认可能爆炸装置的过程中，应遵循的原则不包括：A、先观察、再询问、后动手B、先用探测仪，再使用人工方法C、先检测内部，再探测外表D、先远距离探测，再近距离辩认以下有关机舱火灾应急操作规程的说法中，不正确的是：A、轮机部全体人员立即进入应变部署岗位，服从统一指挥B、切断火场电源或停止发电机运转，起动应急消防泵灭火C、抢救人员两人一组，穿好消防衣，佩带呼吸器，做好支援通信联络工作D、必要时，停止机舱通风机、燃油泵，关闭油柜速闭阀、机舱天窗和风道挡板《SOAS公约》附则第三章对救生设备的规定，客船上所有救生艇筏应能在发出弃船信号后________。

轮机英语真题46期,甲类三管轮

轮机英语全国统考试题(总第46期)一、单项选择题1. In order to control thermal stresses,some types of modern engines use pistons with .A.heavy wall and intensive coolingB.heavy wall and no coolingC.thin wall and no coolingD.thin wall and intensive cooling2. The average pressure exerted on a piston during each power stroke is termed .A.indicated horsepowerB.mean eff ective pressureC.exhaust back pressurepression pressure.3.The ignition quality of a diesel f uel is indicated by theA.cetane numberB.volatility pointC.viscosity indexD.octane number4.A piston in a f our-stroke/cycle diesel engine makes f our strokes during eachA.crankshaf t revolutionB.mechanical cycle of operationC.period of two combustion cyclesD.cycle of two events5.Crankshaf ts of medium speed engines are f rom a single piece of steel.A.unusually solid weldedB.never be solid f orgedC.almost invariably solid f orgedD.almost invariably be welded6.The start ing air entering the cylinder begins when the piston .A.has nearly come to the TDCB.has just past the TDCC.has nearly come to the BDCD.has just past the BDC7.A main bearing consists of two shells which are secured by means of studs and .A.tie rodsB.through boltsC.lead wiresD.bearing capspared to f our-stroke/cycle engines,two-stroke/cycle diesel engines have the disadvantage of.A.less even torqueB.higher cylinder head temperaturesC.f ewer power strokes per revolutionD.greater weight/size requirements9. controls the f uel oil temperature in order to provide oil at the correct viscosity f or combustion.A.The viscosity regulatorB.The temperature controllerC.The f low meterD.The pressure switch10.In a diesel engine lube oil system,which of the f ollowing parts should be lubricated f irst?A.Camshaf t bearingsB.Main bearingsC.Piston crownsD.Cylinder walls11.A large,low-speed,main propulsion diesel engine uses sea water to directly cool theA.cylinder headsB.exhaust valvesC.scavenging airD.injectors12.In a turbocharger , inlet air velocity is increased in the .A.inlet nozzle ringB.stationary dif f user passagespressor outlet voluteD.rotating impeller vanes13.Each cylinder has one starting valve which is usually opened by air pressure and closed byA.nuts nad boltsB.new jointsC.spring f orceD.sealing rings14.In a simple mechanical governor, theA.centri f ugal f orce rotates the ball-headB.f lyweight centri f ugal f orce is balanced by spring f oceC. f lyweight centri f ugal f orce is balanced by hydraulic pressureD.speeder spring alone actuat es the f uel control rod15. A pyrometer is an instrument commonly used to measureA.cylinder pressureB.f lame intensityC.exhaust gas temperatureD.crankshaf t axial alignment16.Af ter starting a diesel engine,which of the listed operating conditions should be checked f i rst?A.Air box pressureB.Lube oil pressureC.Exhaust temperaturesD.Raw water pressure17.A high temperature alarm or which will melt is used to guard against the explosion of compressor air pipelines. A.a f lame trap B. a relief valveC.a f usible plugD.a bursting cap18. What preventative maintenance should be done frequently to diesel engine starting air receivers?A.Drain the accumulated moisture.B.Test the relief valves.C.Watch the temperature to prevent f luctuations in pressure.D.Clean the interior to remove oil and f oreign matter.19.In reducing engine speed to and eff i cient propeller speed by the use of reduction gears,A.speed and torque are both reducedB.speed is reduced and torque remains unchangedC.speed is reduced and torque is increasedD.speed is sometimes unchanged while torque is increased20.Which of the f ollowing statements concerning f ire-bube boilers is correct?bustion gases f low through the tubes.B.Flames impinge on the tubes.bustion occurs in the tubes.D.Water f lows through the tubes.21.The exhaust boilers are used to recover some of carried in the exhaust gas f rom the main engine .A .water B.oil C.heat D.steam22.The water level in a steaming auxiliary boiler will always .A.rise when the steam pressure is increasedB.remain constant as long as the f eed pump operatesC.f all when the steam pressure is decreasedD.vary as the steam demand changes23.When lighting of f an auxiliary boiler,which of the problems listed could cause the burners to sputter?A.Cold f uel oilB.Low f uel oil pressureC.Low atomizing steam pressureD.Water in the f uel oil24.If the f eed pump f or and auxiliary boiler f ails to deliver the f eed water to the boiler,the cause may beA.high steam pressure in the boilerB.abnormally high f eed-water temperatureC.abnormally high boiler water temperatureD.steam demand exceeding feed pump capacity25.Through a pump,the liquid is transferred from the suction to the discharge by the mechanical variation of the volume of a chamber or chambers.A.positive displacementB.ejectorC.centrif ugalD.air compressor26.Sealing lines provide sealing liquid f low to the stuf f ing box of a centri f ugal pumpA.to prevent seawater from passing out the stuff ing box when a high suction head is presentB.to cool the shaf tC.in place of mechanical sealsD.in place of lantern rings27.Which of the valves listed will be cycled from f ully open to f ully close when the handle is turned 90 degree?A. A rising stem gate valveB.A globe stop valveC.A check valveD. A butterf ly valve28.Centrif ugal pumps,used to handle hot liquids, must have a minimum f low through them under all operating conditions.This f low serves toA.prevent overheating and damage to pump rotating parts due to rubbingB.maintain the net positive suction head of the pumpC.maintain hydraulic dif ferential in the pump impeller passagesD.purge the pump of non-condensable vapors and gases29.If you heard a …crackling‟noise in a centrif u gal pump, the most probable cause of the problem would beA.insuff icient speedB.cavitationC.excess discharge pressureD.excessive net positive suction head30.In the process of,liquid changes into gas.A.evaporation Bf rostingC.condensingpressing31.The device used f or low-pressure control and high-pressure cutout on a compressor is called aA.cutoutB.pressure controllerC.controller switchD.cutout switch32.A purge recovery system is used in a central air conditioning or ref rigeration system toA.purge lube oil f rom the liquid refrigerantB.recover wat er purged f rom the systemC.separate f oul gases f rom the receiverD.purge non-condensabl e gases without losing refrigerant33.In an air conditioning system,low head pressure associat ed with a reciprocating compressor can be the result ofA.broken valve springsB.tight drive beltsC.high line voltageD.air in the system34.When discharging bilge water over board, which criteria must be observed?A.The requirement f or the oil content of bilge water discharged is under 15ppmB.No discharge in sensitive watersC.Any discharge in sensitive watersD.International, national or local requirements have to be observed35.The f ollowing measures can be used to improve oily water separator‟s separating effect exceptA.overhauling every two yearB.working at intervalsC.renewing f iltration materialD.properly heating36.Disposal of all kinds of garbage but listed as below is prohibited within Special Areas.minuted or ground papers, rags, glass, metal etcB.plasticsC.f ood waste comminuted or groundD.Incinerator ash37. When does auxiliary burner of incinerator put into operation?I.start incinerator when it is cold II. Little waste oil f or dealing with III. plenty of waste oil f or dealing with IV the water and impurity in sludge are too much V the temperature in incinerator is low VI dealing with little solid rubbishA.II+III+VB. I+II+III+IVC.I+IV+V+VID.I+II+III+VI38.Bacteria which live are said to be aerobic.A. in the presence of oxygenB.without oxygenC.in the presence of nutritionD.without nutrition39. When centri f uging heavy f uel oil, an important f actor to consider is(are) the .1)f low rate 2)viscosity of thef uel oilA. 1)B.2)C.both 1) and 2)D.Neither 1)nor 2) are correct40.To ensure lube oil purif ier working in normal condition, the interval between two sludge discharging should not exceed hours.A. 2B.4C.5 D641. can not cause oil f low f rom wat er outlet of sel f cleaning purif i er.A. Oil temperature too highB.Diameter of gravity disc too largeC. Oil temperature too lowD.High level tank out of water42. In the production of f reshwat er from seawater through a process of heating and cooling, the cooling phase of production is usually calledA.evaporation BdistillationC.dehydrationD.condensation43.Distilled water f rom an evaporator may be discharged into a potable water tankA. through a detachable hose connectionB.af ter passing through an activated charcoal f ilterC.af ter chemical analysis shows it is f it f or consumptionD.through a solenoid operated three-way valve44.What type of valve is used to direct the f low of hydraulic f luid?A.relief valveB.direction control valveC.stop valverD.pressure control valve45.Cargo hand ling unit is rated according to the to be lif ted.A. cargo craneB.jibC.saf e working loadD.oil pressure46. The crane is usually mounted on a pedestal to effer adequate to the operator. A.time B.spaceC.lengthD.visibility47.Proper internal lubrication of a hydraulic anchor windlass lef t idle f or extended penods can be accomplished by .A.perf orming a chech run on the unit at regular intervalsB.testing the hydraulic f luid f or proper PHC.checking the reservoir f or proper levelD.cleaning strainers at regular intervals48. are used f or hauling in or letting out the wires which f asten the ship to the shore.A.Cargo winchesB.Mooring winchesC.WindlassesD.Cargo hatches49. The major source of chemical contaminants in hydraulic f luid is .A.microscopic steel shavingsB.abrasive wasteC.anti-oxidant compoundsD.oxidation by-products50.If you install a new hydraulic hose in a hydraulic system, the hose must be long enough to allow f or contraction to prevent .A. f ailure of the hydraulic hoseB.excessive f low through the lineC.f riction in other areas of the hydraulic systemD.overheating of the hydraulic f luid51.A cirucit that has one wire in contact with the hull of the ship is aA.series circuitB.grounded circuitC.short circuitD.closed circuit52.The f requency of an alternator at a given r/min is determined by the .A.number of turns of wi re in the armature coilB.number of magnetic polesC.strength of the magnets usedD.output voltage53.The operation of paralleling two alternators requires the voltages to be and also in phase.A.zeroB.eliminatedC.diff erentD.equal54.The f requency of an AC generator is controlled by theA.rheostaternorC.exciterD.capacitor55.A motor enclosure which protects against falling liquids is classif ied asA.water-proofB.drip-proofC.spray-tightD.spray-proof56. are supplied with electricity by main switchboard directly.A.Suez Canal searchlight, air compressor and ai r conditioning compressorB.Air compressor, boiler blower and ref rigeration plantC. Boiler blower , Suez Canal searchlight and ref rigeration plantD.Suez Canal searchlight and boiler blower57. is not installed on the emergency switchboard.A. AmmeterB.V oltmeterC.WattmeterD.Synchroscope58.When two D.C.generators operate in parallel, they are protected against motorizing byA.blow out coilsernor relayC.under voltage tripsD.reverse current trips59.Moisture in a D.C. motor would causeA.short circuitB.speed upC.slow downD.hunting60.The part of a f use that melts and opens the circuit is made ofA.copper and antimonyB.steel and babbittC.aluminum or beryllium alloyD.zinc or an alloy of tin and lead61.The main purpose of an electric space heater installed in a large AC generator is toA.prevent the windings f rom becoming brittleB. prevent moisture f rom condensing in the windings during shutdownC. prevent acidic pitting of the slip ringsD. keep the lube oil warm f or quick starting62.Sparking at the brushes of a running motor could be an indication ofA.normal operationB.a dirty commutatorC.increased brush capacityD.water vapor absorption63. Prior to starting ,the purpose of turning over a main propulsion diesel engine with the cylinder test cocks open, is to \A. test the starting systemB. remove condensation from the cylindersC.check the compressionD.check f or proper lube oil pressure64. During the watch keeping at sea, should be logged or recorded in the engine log book.A.the running hours of the cooling water pumpB.chief engineer‟s orderC.the main parameters of main and auxiliary equipments.D.the position of the vessel65. During ship manoeuvering, when thd diesel is stopped, which of the f ollowing items is wrong?A.keep all systems running normallyB. main engine is available at any momentC.shut off the starting air bottle outlet valveD.pay attention to the changes of the system parameters66.Which of the listed conditions can be considered as the single greatest cause of accidents?A.SpeedB.Excessive knowledge or skillC.Human errorD.Excitement67.On a tank vessel, which of the f ol lowing substances would be burning in a class “B”f ire?A.OilB.WoodC. RagsD.Electrical wiring68.The most likely place f or a f ire to start through the process of spontaneous combustion is inA. an electrical switchboardB.the pressure tanksC.the f uel oil tanksD.the oily rag bin69.Which of the f ire extinguishers listed is to be weighed annually and sent ashore f or recharging if the weight loss exceeds 10% of the weight of a f ull charge?A.FoamB.Soda acidC.Dry chemicalD.Carbon dioxide70.While on watch in the engine room,you hear a continuous sounding of the general alarm.Which of the f ollowing actions should you take f irst?A. Secure the burners then proceed to your assigned boart station.B.Start the f ire pump and establish f low to the f ire main.C.Open the guardian valve and standby to maneuver.D.Open the master control valves on the f ixed CO2 system.71.If there were a f ire in the bunker tanks, you shouldA.close the ventB.pump out the tankC.activate the f ixed CO2 systemD.cut off the heating coils72.To avoid excessive surge pressure when bunkering , you shouldA.bunker at a normal rateB.check f or kinks in hoseC.close valves slowlyD.shut valves bef ore topping off73. ,where minor repairs are carri ed out with a ship in sevice,of ten during a stay in prot. This may be remote from a ship repair site.A.V oyage repairsB.Routine dockingC.Daage repairsD.Conversion74. When is the dock survey carried out ?A.During annual repairually during dock repairC.Bef ore sea trialD.Af ter 5 years f rom last annual survey75.In the initial survey, compiles the survey report and f ills in certif icat e.A.surveyorB.chief engineerC.administratorpany superintendent 76.If an incorrect entry were made in the Oil Record Book, you shouldA.erase the entry and rewrite itB.notif y the ship‟s off icer-in-chargepletely black it out and make the correct entry alongsideD.draw a single line through the wrong entry and initial it.77.The International Oil Pollution Prevention Certif icate is valid f or a period ofA.one year f rom the date of issueB.f ive years from the date of issueC.three years f rom the date of issueD.f our years f rom the date of issue78. Which one is Not the …clear grounds‟f or a more detailed inspection?A. no operation procedures f or the oil separatorsB.engine log book missingC.the master and the chief engineer are unabl e to communicate effectivelyD.absence of an up-date muster list79. The Port State Control off icer may witness a f ire drill carried out by the crew assigned to these duties on theA.Navigation Log BookB.Engine Room Log BookC.Oil Record BookD.Muster List80.STCW 78/95 Convention shall apply to seaf arers on board seagoing ships entitled to f ly the f lag of a Party.A. servedB.servingC.surveyedD.surveying81.The main purpose of port State control is not toA.prevent an unsaf e ship proceeding to seaB.prevent a ship threatening the marine environmentC.f ine the shipsD.conf irm a saf e sailing82.The bridge should inf orm the engine room bef ore passing through congested or shallow waterway.A.24 hoursB.2 hoursC.1 hourD.15 minutes83.When the chief engineer is in the machinery spaces,the officer in charge of the engineering watch shallA.continue to be responsible f or machinery space operations despite the presence of the C/EB. hand over the responsibility to the chief engineer activelyC. be responsible f or the watching together with the chief engineer.D.assistant the chief engineer to contol the machinery.84.According to the international regulations concerning the prevention of pollution of sea areas f rom ships, the disposal into the sea of all plastics isA.welcomeB.admitted in some special sea areasC.prohibitedD.acceptable85.The ship emergency plan item does not include usually.I lif esaving, f ire f ighting II f irst aid III abandon shipA. IIB.IIIC.II IIID.I86. Under ISM Code, the ship to which it applies has to carryA. an International Ship Security Certif icat eB. an International Oil Pollution Prevention Cerif icatC.a Saf ety Managem ent Certif icateD. an International Ballast Water Management Certif icate87. The objective of ISPS Code isA. to protect the marine environmentB. to provide a method to avoid an accidentC. to protect the ship f rom collisionD. to keep terrorism action away f rom ships.88. According to “MARI TIME LABOUR CONVENTION,2006”,The maximum hours of work shall not exceedA.14 hours in any 24-hour periodB. 72 hours in any seven-day periodC.10 hours in any 24-hour periodD.88 hours in any seven-day period二、关联题（关联题题干下有4个小题，每小题4个选项）第一组Port State Control(PSC) is the inspection of f oreign ships in national ports f or the purpose of veri f ying that the condition of the ship and its equipment comply with the requirements of international conventions and that the ship is manned and operated in compliance with applicable international laws.The primary responsibility f or ensuring that a ship maintains a standard at least equivalent to that secif ied in internaitonal conventions rests with the f lag State and if all f lag States perf ormed their duties satisf actorily there would be no need f or port State control. Unf ortunately this is not the case as evidenced by the many marine accidents around the world-hence the need f or additional control.The authority f or exercising PSC is the national law based on relevant conventions. It is theref ore necessary f or a port State to be Party to those conventions and to have promulgated the necessary legislation bef ore exercising PSC. In accordance with the provisions of the applicable conventions,Parties may conduct inspections of f oreign ships in their ports Port State Control Off icers(PSCOs).89.The purpose of PSC is1) to check and inspect f oreign ships 2) to verif y the condition of a ship in compliance with requirements o f international conventions;3)to make sure that the ship is manned and operated well 4)to detain shipsA 1)2) B.2)3) C.1)3) D.123490.Who will be responsible f or ensuring that a ship maintains a standard at least equivalent to that specif i ed in international conventions?A.PSCOsB.Ship ownersC.Flag statesD.Port states91.Bef ore exercising PSC,a port state shouldA.become a contracting Party and promulgate regulations f or implementing PSCB.inf orm ship ownersC.establish proceduresD.inf orm shipping companies92. PSC inspection is implemented by throughA. f lag states/PSCOsB.f lag states/ship ownersC.port states/PSCOsD.port states/ship owners第二组Almost all f ailures in the f uel oil system,including the compression being to low,result in the crankshaf t rotating more slowly if there is a f ailure at one or more cylinders simultaneously. If only one or two cylinders fail, and the engine is not f ully loaded, the crankshaf t rev/min does not decrease, the reason being that the governor ensures that the remaining cylinders are loaded to a correspondingly great er extent. If the engine is already f ully loaded, the cylinders that are working normally become overloaded causing a smoking exhaust and higher exhaust temperatures etc. The load must always be reduced until the f ailure has been located and recti f ied. The reasons f or a cylinder suddenly working at reduced load, or failing completely, may be :1. a def ective or blocked f uel injection valve.2.the f uel oi l pump piston seizing in the barrel. This f ailure can be ascertained by trying to move the pump‟s toothed rack.Defective f uel pumps must be changed.3.the compression being to low because of sticking , worn or broken piston rings.4 leaking inlet or exhaust valves5. no clearance in the valve operation gear.The reasons f or the crankshaf t rotating more slowly, or stopping completely,can also be:1. the f uel oil f ilter being blocked. This f ailure is identif ied by decreasing oil pressure af t er the f uel oil f ilter.2.valve sticking in the open position3.leaking f uel oil pipes or joints.4.water in the f uel oil5.the regulating mechanism being jammed6.the governor not f uncitoning correctly.7the electrical shutdown valve(the monitoring system)being activated.93.This passage is mainly aboutA.the f ailure of reduced rpm.B.the f ailure of the governorC.how to ensure the constant rotational speedD.the reasons f or the f uel system to shut down94.If one or two cylinders fail in f uel oil system the crankshaf t rev/min .1)will invaviably decrease 2)does not decrease 3)will decrease under certain circumstancesA.1B.2C.3D.None of 1 2 3is true95. Which of the f ollowing is NOT mentioned as the reason f or a cylinder suddenly working at reduced load?A.f uel valve f ailureB.f ailure of f uel pump discharge valvesC.too large gaps of piston ringsD.the f uel oil f ilter being blocked completely96.Which of the f ollowing is NO T mentioned as the reason f or the crankshaf t rotating more slowly or stopping?A.changing f rom heavy oil to light diesel oilB.connections leakingC.there being too much waterD.malf unction of the governor 46轮机英语的答案1- 5 DBABC 6-10 BDBAB11-15 CDCBC 16-20 BCACA 21-25 CDDBA 26-30 BDABA 31-35 BDADA 36-40 BCACB 41-45 DDDBC 46-50 DABDA 51-55 BBDBA 56-60 DDDAD 61-65 BBBCC 66-70 CADDB 71-74 ACABA 76-80 DBADB 81-87 CCAC ACD 88-AB 89-92 ~~~~ 93-96~~~~。

甲类三管轮机英语考试真题教材

【单选】In some cases, when _____ exceeds a pre-set value ,the filter is automatically back flushed with air ,the displaced oil going to auxiliary drain tank where it is subsequently filtered and pumped back into the system A.the differential temperatureB.the differential pressureC.the temperature and pressureD.the pressure【单选】'Insufficiency of manning or insufficiency of certification of seafarers' is an identification of a/an ______.A.substandard shipB.standard shipC.over-standard shipD.reference ship【单选】'Loop,' 'uniflow,' 'crossflow,' and 'return-flow' are terms used to describe various types of ______.A.control air circuitsB.superchargingC.turbochargersD.scavenging【单选】 A DC generator is used to supply direct current in order to maintain an AC generator field and is known as a/an ______.A.rotorB.statorC.exciterD.armature【单选】 A centrifuge arranged to separate two liquids is known as _____.A.an oily water separatorB.a purifierC.a centrifugal compressorD.a clarifier【单选】 A circuit breaker and a fuse have a basic similarity in that they both ______.A.can be reset to energize the circuitB.should open the circuit when overloadedC.will burn out when an over current flow developsD.should short the circuit when overloaded【单选】 A circuit breaker differs from a fuse in that a circuit breaker ______.A.melts and must be replacedB.is enclosed in a tube of insulating material with metal ferrules at each endC.gives no visual indication of having opened the circuitD.trips to break the circuit and may be reset【单选】 A circuit breaker is ______.A.a distribution device B.a lighting equipmentC.the indicating instrumentD.an isolating switch【单选】 A combination combustible gas and oxygen indicator is an instrument that measures the _____ of both combustible gas and oxygen; each is indicated on a separate binationsC.concentrationD.filters【单选】 A diesel engine with a combustion chamber located between the crowns of two pistons is known as a/an ______.A.double-acting engineB.opposed pistons engineC.single-acting engineD.horizontal acting engine【单选】 A fire involving aluminum powder would be a class _________. A.'A' fireB.'B' fireC.'C' fireD.'D' fire【单选】 A hydraulic motor may be driven by ______.A.an electric motorB.a diesel engineC.a compressorD.oil【单选】 A marine diesel engine is started by______.A.supplying high pressure oil into a hydraulic motorB.supplying high temperature air into the cylinderC.supplying high pressure air into the cylinderD.electrical igniting【单选】 A positive displacement pump is that where the volume of the pump chamber is alternately increased to ___ and then decreased to ___. A.draw the liquid in / force the liquid outB.force the liquid out / draw the liquid inC.suction/drawD.deliver/outlet【单选】 A practical way of checking for excessive fuel injection in one cylinder of an operating diesel engine is to ______.A.feel the high pressure fuel lineB.check the cylinder exhausts for white smoke frequentlyC.check the cylinder exhaust temperatureD.isolate each cylinder and inspect the injector【单选】 A segregated ballast system is a system where ______.A.all ballast is processed through the oily water separatorB.ballast is taken on and discharged through a separate main deck riserC.ballast and cargo tanks are separated by cofferdamsD.all ballast lines, tanks, and pumps are independent of those used for oil【单选】 A supercharged diesel engine, when compared to a similar naturally aspirated diesel engine, will develop an increase in ______.A.ignition lagB.engine horsepowerC.lube oil system pressureD.specific fuel consumption【单选】 A viscosity regulator used for an engine is usually provided in order to _____ for an engine burning heavy fuel oil.A.regulate the fuel supplyB.maintain a constant fuel viscosity at the fuel valvesC.maintain efficient coolingD.alter the fuel density【单选】According to STCW, the abilities specified in the standards of competence are grouped as seven functions at three levels of responsibility, which of the following is not one of the three levels?A.Navigational levelB.Management levelC.Operational levelD.Support level【单选】According to the MARPOL CODE, glass, metal and paper materials should ______.A.never be discharged into seaB.be discharged beyond 12 nm from nearest landC.be discharged limited in 12 nm from nearest landD.be discharged to sea【单选】According to the SOLAS convention, the bilge water system ______A.The bilge pump must connect the bilge well suction directlyB.should not pump out the water accumulated in the cargosC.should not be used for emergency drainage in case of ship collisionD.should be connected to the fire fighting system directly【单选】After 'F.W.E.' is given, the air system is shut down, the _____ gear put in, all drains and indicator cocks opened, and the cooling water kept running.A.steeringB.timingC.turningD.running【单选】After 'finished with engine', which of the following cannot be shut off by the duty engineer ?A.fuel oil booster pumpB.the main starting valveC.the sea chestD.the main cooling sea water pump【单选】After taking on fuel oil, the hoses should be disconnected and ______.A.draped over the fantail to dry outB.drained over the side and washed outC.drained into the bilges and washed outD.drained into buckets【单选】Air chambers are usually fitted to reciprocating pumps in order to ___.A.increase discharge pressureB.increase suction vacuumC.develop pulsation flowD.keep a steady rate of flow【单选】All crew's assigned emergency stations can be found on the ship's ______.A.muster listB.certificate of inspectionC.clearance papersD.permit to proceed【单选】All details of fuel bunkering or slop disposal must be entered in the _____.A.rough logB.engine room log bookC.oil record bookD.smooth log【单选】An emergency generator, driven by an internal combustion engine, shall be tested under load for a minimum of 2 hours at least once every ______.A.weekB.2 weeksC.monthD.3 months【单选】An incinerator auxiliary burner can not be ignited. It is NOT caused by______.A.carbon deposits on the electrodesB.defective atomizerC.low oil pressureD.too much water in the oil sludge【单选】An incinerator auxiliary oil-fired burner is used to ignite ______.A.the solidwaste or the oil sludgeB.the solid waste onlyC.the oil sludge onlyD.neither the solid waste nor the oil sludge【单选】Anchor capstans are used in some installation where the cable lifter rotates about a ______. A.horizontal axisB.crankshaftC.vertical axisD.camshaft【单选】As for oil separator, ______contributes to poor separation efficiency and carries over of water into the clean oil outlet.A.A too big gravity discB.A too small gravity discC.The high oil temperatureD.The high speed motor【单选】As the amount of moisture in the air increases, the difference between the dry bulb and wet bulb temperatures will ______.A.increaseB.decreaseC.remain unchangedD.be greatest at dew point【单选】Before doing any work on a hydraulic system equipped with accumulators, you should ______.A.drain the accumulators and purge with oxygenB.bleed off all stored energy from the accumulators completely C.charge the accumulators to prevent system energy lossD.pump the hydraulic fluid into the accumulators to prevent fluid loss【单选】Before starting the engine, the air bottle should be ______.A.pumped up B.loaded C.discharged D.closed【单选】Biological sewage water treatment plant work on the_____.A.heating processB.settling processC.aeration processD.centrifuging process【单选】Cargo handling unit is rated according to the _____ to be lifted.A.cargo craneB.jibC.safe working loadD.oil pressure【单选】Centrifugal pumps, used to handle hot liquids, must have a minimum flow through them under all operating conditions. This flow serves to ______.A.prevent overheating and damage to pump rotating parts due to rubbingB.maintain the net positive suction head of the pumpC.maintain hydraulic differential in the pump impeller passagesD.purge the pump of non-condensable vapors and gases【单选】Coalescence is the breakdown of surface tension between oil droplets in an oil/water mixture, which causes them to join and _____ in size.A.expand B.extract C.increase D.decrease【单选】Combustion gases formed in the cylinder of a diesel engine are prevented from blowing past the piston by ______.A.cylinder pression ringsC.piston skirtsD.oil rings【单选】Cooling of engines is achieved by circulating a cooling liquid around internal ______ within the engine.A.airB.passagesC.pipesD.means【单选】Dual electro-hydraulic steering units usually operate ______.A.with both pumps on line at the same timeB.with one pump on standbyC.with the follow-up gear disconnectedD.only when the rudder is moved amidships【单选】During ______ the gases are driven out of the cylinder by the piston.A.The suction strokeB.The compression strokeC.The expansion strokeD.the exhaust stroke【单选】During purification, if the operating water tank is empty, which of the following malfunctions will appear?A.Some oil will flow from the water outlet of the separator.B.There will be some water in the purified oil.C.Some oil will flow from the sludge outlet of the separator.D.If discharging the sludge, there will be no flushing water.【单选】Each crank is made up of two crank webs joined by a common ______ to which the bottom end bearing is fitted. A.throw B.crankshaft C.crankpin D.crosshead【单选】Each cylinder liner on the marine medium speed engines _____. A.is usually cooled by sea water B.can be replaced when worn out C.is in direct contact with the water in the bore of the cylinder D.can't expand when heated【单选】Electric wires should have each feature of the following except ______.A.flame retardantB.moisture resistantC.oil resistant D.low conductivity【单选】Engine speeds at which resonance can occur are termed ______.A.maximum speedsB.full speedsC.sea speedsD.critical speeds【单选】Equal power factors on paralleled AC generators are maintained by an automatic ________.A.voltage regulatorB.reverse power relayC.reverse current ernor control switch【单选】Failure to open the diesel engine test cocks after a long period of shutdown, prior to starting may result in _______.A.an air bound fuel systemB.damage to cylinder heads and pistonsC.excessive fuel injectionD.excessive air valve lift【单选】Fuel droplets injected into a diesel engine cylinder must have adequate penetration to ______.A.prolong the ignition delay periodB.ensure the beginning of fuel injectionC.thoroughly utilize the air chargeD.allow controlled fuel combustion【单选】Fuel is ignited into a diesel engine cylinder by ______.A.a spark plugB.injectorsC.the heat of compressionD.increasing jacket water temperatures【单选】Full travel of the electronic governor actuator linkage must exceed the ______ travel of the engine fuel control to ensure that the engine fuel control is capable of moving from the 'off' position to 'full fuel'. A.minimumB.averageC.maximumD.half【单选】Heavy residual fuel oils are heated prior to centrifuging to ______.A.reduce fuel weightB.increase specific gravityC.separate fuel from lube oilD.reduce fuel viscosity【单选】How can the chance of contaminating hydraulic fluid be decreased when working on hydraulic systems?A.Clean the fittings before they are disconnected.B.Place drip pans under leaky fittings.C.Seal any cracks in lines with Permatex.D.Coat all threads with graphite oil. 【单选】ISM code has applied to the ships as follows exceptA.Passenger shipsB.Bulk freight vessels of 500 gross tons or moreC.Warship of 500 gross tons or moreD.High-speed craft of 500 gross tons or more【单选】If a cam-controlled engine has a normal injection pressure at rated speed, the injection pressure will be ______ at slow speed.A.a little lower B.a little higherC.too lowD.exactly the same【单选】If a fire ignites in the engine room as a result of a high pressure fuel oil leak, you should FIRST ______.A.secure the ventilationB.find a soda acid extinguisherC.shut off the fuel oil supplyD.secure the generator【单选】If an oil spill occurs on deck, you should ______.A.cover the area with foamB.cover the area with absorbent materialC.wash down immediately with a fire hoseD.wash down immediately with an oil dispersing solvent【单选】If found oil when we open low oil level plug of separator, it indicates _______.A.the separator is overloadedB.the monitor equipment of separator failsC.the discharge pump of separator can not workD.the temperature of oil water is low【单选】If the engine is at rest during maneuver for an extended period the engine should _______, of course, that navigational circumstances permit, before restarting on fuel.A.be turned on airB.be tried on powerC.be turned by the turning gearD.be tested on fuel【单选】If the pump for a hydraulic anchor windlass is overheating, the cause may be ______.A.increased pump speedB.excessive pump discharge pressureC.too low of a tilting box angleD.low pump speed【单选】If the sea water supply pressure for a diesel engine cooling system is below normal, you should check for a ______.A.broken thermostatB.clogged sea water strainerC.blown head gasketD.cracked head【单选】If the speed of a turbocharged diesel engine is maintained constant as the load on the engine is increased, the speed of the turbocharger will ______.A.decrease until the engine speed increasesB.increaseC.decreaseD.remain unchanged【单选】If you heard a 'crackling' noise in a centrifugal pump, the most probable cause of the problem would be ______.A.insufficient speedB.cavitationC.excess discharge pressureD.excessive net positive suction head【单选】Immediately after any diesel engine is started, the engineer should check the ______.A.crankcase pressureB.lube oil pressureC.saltwater pressureD.exhaust temperature【单选】In Maritime Labour Convention, hours of rest may be divided into no more than two periods, one of which shall be at least ___ hour in length, and the interval between consecutive periods of rest shall not exceed 14 hours.A.fourB.fiveC.sixD.seven【单选】In ___ pumps a closed discharge valve will cause bursting discharge pressure.A.centrifugalB.plungerC.injectorD.water【单选】In ______ the control action is independent of the output.A.a closed loop control system B.an open loop control systemC.a boiler control system D.a steering gear control system【单选】In a diesel engine cooling water system, a pH of 6.0 indicates a/an ______.A.slightly acidic conditionB.slightly alkaline conditionC.over-treatment of waterD.neutral condition of water【单选】In a general cargo crane, _____ is fitted to lift the cargo load.A.the slewing motorB.the luffing motorC.the hoisting motorD.the fan motor【单选】In a radial piston pump, reversal and control of fluid flow are accomplished by moving the _______. A.central valveB.radial plungerC.floating ringD.cylinder body【单选】In an air conditioning system, moisture is removed from the air by ______.A.filtersB.separatorsC.ducted trapsD.dehumidifiers【单选】In common rail engines, the fuel is ______ before is injected into the cylinders.A.stored in a common fuel lineB.pumped by the injection pumpC.at low pressureD.already atomized【单选】In some diesel engine designs, the injection of cylinder oil is timed to impinge when the piston is coming upward and only impinge on ______.A.piston skirtB.piston crownC.piston ring belt.D.cylinder ring belt【单选】In the Oil Record Book, a comprehensive list of operational items are grouped into operational sections. Each section is codified by a/an ______.A.numberB.abbreviationC.letterD.number、abbreviation and letter【单选】In the electronic governor actuator, the oil pressure is provided by a ______ pump driven by a shaft connected to the engine camshaft.A.servomotorB.hydraulic motorC.gearD.volute【单选】In the event of a small bunker oil spill on deck occurring while bunkering, youshould ______.A.wash down the area immediately with a fire hoseB.wash down the area with keroseneC.cover the area with absorbent materialD.cover the area with foam【单选】In the event of minor emergencies when the machinery spaces unattended, ______ will be informed of malfunctions in the machinery by his cabin monitor.A.the chief engineerB.the engineer on cabin watchC.the bridge officer on watchD.the master【单选】In the production of freshwater from seawater through a process of heating and cooling, the cooling phase of production is usually called ______.A.evaporationB.distillationC.dehydrationD.condensation【单选】Increasing the temperature of a fuel will _____ its viscosity, and vice-versa.A.increaseB.not changeC.reduceD.add【单选】It ______ for an emergency generator to require paralleling.A.is usual B.is not usualC.is necessaryD.is not impossible【单选】It is important to note that when an excessive amount of water is present in the fuel the temperature for centrifuging must be kept below ______, otherwise forming and agitation of the fuel takes place.A.the condensating point of waterB.the boiling point of waterC.the flash point of the fuelD.the flammable point of the fuel【单选】It is possible to mount a double suction centrifugal pump impeller with the vanes facing in the wrong direction. This would cause the pump ______.A.head capacity to improveB.discharge to be reversedC.efficiency to decreaseD.slippage to decrease【单选】Leakage of hydraulic fluid from around the shaft of a hydraulic motor may be caused by ______.A.permanent loss of pump suctionB.worn shaft sealsC.high level in the oil sumpD.low motor RPM【单选】Loss of lubricating oil pressure to the main propulsion diesel engine will actuate a/an ______.A.over-speed tripB.audible/visual alarmC.the ships/boats general alarmD.reserve oil storage tank【单选】Maintaining the lowest possible scavenging air temperature at all times is not recommended due to the possibility of the ______.A.air charge density becoming too highB.piston crown surfaces becoming too coldC.formation of excessive quantities of pression pressure being greatly reduced【单选】Maximum pressure readings should be taken when the engine is running on ______ as steadily as possible.A.half loadB.full loadC.average loadD.minimum load【单选】Motor controllers are seldom troubled with grounds because ______.A.the auxiliary contacts have a high resistance connectionB.the contactors and relays are mounted on a non-conducting panelC.the resistor banks are composed of individual series-connected unitsD.there are separate switches for the motor and the control【单选】Noxious emissions amount to 0.25～0.4 percent by volume of the exhaust gas, depending on the amount of ______ in the fuel and its lower heat value, and the engine type, speed and efficiency.A.carbonB.sulphurC.oxidD.water【单选】Over-greasing of ball bearings installed on pumps will result in ______.A.smoother pump operationB.overheating of the bearingC.reduced corrosion in the bearingD.increased pump capacity【单选】Owing to its __________, the low speed cross-head diesel engine is widely used on board ship as a main engine.A.smaller size and simple constructionB.long life, lower cost and reliabilityC.easier operation and managementD.simple construction and easier management【单选】Prior to closing the breaker when paralleling two AC generators, the recommended practice is to have the frequency of the incoming machine ______.A.slightly less than the line frequencyB.the same as the line frequencyC.slightly greater than the line frequencyD.have nothing to do with the line frequency【单选】Prior to starting, the purpose of turning over a main propulsion diesel engine with the cylinder test cocks open, is to ______.A.test the starting systemB.remove condensation from the cylindersC.check the compressionD.check for proper lube oil pressure【单选】Reheating a hardened component to a temperature lower than the hardening temperature and then cooling it is known as ______.A.low temperature hardeningB.case hardeningC.annealingD.tempering【单选】Remote control means that _____ .A.the system is manned manuallyB.the system is situated remotely from the operatorC.the system is controlled automaticallyD.the system is controlled from the bridge【单选】Restrictions occurring in the small orifices of pneumatic control system components can be caused by ______.A.moisture in the compressed air supplyB.excessive dryness in the compressed air supplyC.pressure surging in the compressed air receiverD.insufficient lubrication of the system components【单选】STCW Convention describes that _____ are laid down for the certification of engineer officers in charge of a watch in a traditionally manned engine room, or the designated engineer in a periodically unmanned engine room. A.available minimum requirementsB.available maximum requirementsC.mandatory minimum requirementsD.mandatory maximum requirements【单选】STCW Convention states that the officer in charge of the engineering watch is the _____ representative.A.ship-owner'sB.master'sC.chief engineer'sD.manager's【单选】Safe working conditions inside the crankcase are ______, especially for large bore engines where the components are quite heavy.A.reliableB.safetyC.easyD.important【单选】Seawater can be used for drinking ______. A.at a maximum rate of two ounces per dayB.after mixing with an equal quantity of fresh waterC.if gather during or immediately after a hard rainD.under no circumstance【单选】Smaller equipment may be supplied via ______ or miniature circuit breakers.A.exciters mutatorsC.fusesD.wattmeter【单选】The Abbreviation "ERM" in the Manila Amendments to the STCW Convention stands for ______.A.Engine Room ManagementB.Engine Resources ManagementC.Engineer Resources ManagementD.Engine-room Resources Management【单选】The ISM Code is a part of ____.A.SOLASB.MARPOLC.STCWD.Ballast Water convention【单选】The International Management Code for the Safe operation of ships and for Pollution Prevention is referred to as _______.A.ISM CodeB.IOPP CodeC.IMS CodeD.ISPS Code 【单选】The Port Authorities, in accordance with the IMO resolutions have been carrying out _____ to enhance safety of foreign ships.A.CPP B.FPP C.PSC D.FSC【单选】The SMS should provide for specific measures aimed at promoting the_____ of equipment or systems, the sudden operational failure of which may result in hazardous situations.A.visibilityB.abilityC.reliabilityD.capability【单选】The ______of the telemotor is mounted on the steeringgear.A.transmitterB.receiverC.pipesD.charging unit【单选】The ability of lubricating oils to resist viscosity changes during temperature changes is indicated by the ______.A.American Petroleum B.Institute number viscosity index numberC.Seconds Saybolt Furol numberD.Seconds Saybolt Universal number【单选】The activated sludge strength should be checked at regular intervals, and it is good that the color of the aeration compartment water is ______.A.chocolateB.yellowC.blackishD.ivory-white【单选】The air distributor is conventionally driven by ______ and distributes ______ into each cylinder by certain sequence.A.camshaft / fresh airB.camshaft / starting airC.electronic motor which is controlled by a computer / fresh airD.electronic motor which is controlled by a computer / starting air【单选】The burning of ______ is a class‘C’fire.A.diesel oilB.magnesiumC.dunnageD.electrical insulation【单选】The capacity of the supply pump to the separator should correspond with the recommended throughput, or it must be adjusted without the risk of ______ formation.A.sludgeB.emulsionC.oil runoutD.deposit【单选】The clutch band of a constant tensioning mooring winch must be set up tight enough to drive the winch drum and should slip only when ______. A.excessive loads are placed on the winch B.minimum pull is being exerted by the winch C.automatic operation of the winch is desired D.wire is being retrieved at the maximum rate【单选】The cooling water jacket is common to all the cylinders but there are often ______ to ensure that each cylinder receives the right amount and flow of water. A.dividing walls B.divided walls C.dividing liners D.divided jackets【单选】The descriptions about cetane number are TRUE except ______.A.Cetane number indicates ignition qualityB.The lower value the cetane number is of, the poorer the ignition quality will beC.Cetane number isn't the only measurement of ignition quality.D.Cetane number is measured by Redwood instrument【单选】The device that most commonly utilizes the principle of electromagnetic induction is the ______.A.diodeB.transformerC.transistorD.rheostat【单选】The engineer officer in charge of the watch shall ensure that ______are kept under constant surveillance.A.the devices and systems in chargeB.the communication devicesC.the main propulsion plant and auxiliary systemsD.the steering gear【单选】The expansion tank for a diesel engine closed cooling system is designed to maintain a constant head on the system and ______.A.reduce water temperatureB.reduce water turbulenceC.provide an air cushionD.allow for an increase in water volume as the engine warms up【单选】The extended aeration process consists of _____ the liquor either by bubbling air through it or by agitating the surface.A.deoxygenating B.oxygenatingC.chemicalizingD.disinfecting【单选】The frequency output of an operating alternator is controlled by the ______.A.relative speed of the rotor polesB.number of turns of wire in the armature coilC.strength of the magnets usedD.output voltage【单选】The instrument which the emergency switchboard doesn't need is ______.A.ammeter B.voltageC.wattmeterD.synchronous meter【单选】The load sharing characteristics of two diesel generators operating in parallel are mostly dependent on their governor ______.A.load limit settingsB.idle speed settingsC.speed limit settingsD.speed droop settings【单选】The lubricating oil purifier may ______ oil from the drain tank and ______ the clean oil into the supply line.A.take; takeB.discharge; takeC.discharge; dischargeD.take; discharge 【单选】The magnetic field is provided by electromagnets so arranged that adjacent poles have ______.A.opposite polarityB.the same polarityC.negative polarityD.positive polarity 【单选】The main objective of ISPS Code is ______.A.to prevent the human injury and the loss of lifeB.to specify the measures to enhance maritime securityC.to avoid the damage to the environment, particularly to the marine environmentD.to ensure the compliance with conventions【单选】The main objective of the SOLAS Convention is ______.A.to specify minimum standards for the construction, equipment and operation of ships.B.to specify minimum standards for the training, certification and watch keeping for seafarers.C.to provide minimum standards for the operation of vessels.D.to tell the company how to run the business.【单选】The majority of automatic mooring winches are _____ to improve the backward efficiency of the gear train for rendering.A.spur gearedB.screw gearedC.worm gearedD.belt driven【单选】The most critical part of the bunkering operations, which can result in an oil spill, is when the ______.A.hose joints are made upB.tanks are being topped offC.system is being lined upD.pumping operation is first started【单选】The officer in charge of an engineering watch shall have the knowledge of ERM principles, including obtaining and maintaining ______.A.situational awarenessB.safety awarenessC.environmental awarenessD.anti-pollution awareness【单选】The officer in charge of the engineering watch shall ensure that at all times bridge orders relating to changes in _____ of operation are immediately implemented. A.ahead or astern B.fore or aft C.up or down D.speed or direction【单选】The only means of removing the latent heat of condensation from a refrigerant in the normal refrigeration cycle is by ______.A.passing it through the expansion valveB.condensing refrigerant in the system condenserC.passing the gaseous refrigerant through the heat interchanger on the suction side of the compressorD.maintaining a high pressure on the system's receiver【单选】The operator of electrical motors should keep a constant check on the loads they carry because ______.A.low loads necessitate frequent insulation cleaningB.exceeding nameplate values shortens useful lifeC.energy is wasted if full loading is not utilizedD.power factor correction methods are load dependent【单选】The overcurrent relay _____ the motor contactor when the motor exceeds its rated current.A.connectsB.tripsC.foulsD.destructs【单选】The part of a fuse that melts and opens the circuit is made of ______.A.copper and antimonyB.steel and babbittC.aluminum or beryllium alloyD.zinc or an alloy of tin and lead【单选】The piston rod scraper box incorporated in a two-stroke/cycle, crosshead diesel engine serves to ______.A.eliminate the necessity for an oil scraper ringB.prevent side thrust and cylinder scoringC.prevent sludge and dirty oil from entering the crankcaseD.scrape oil。

大管轮轮机英语综合(33-48期)

中华人民共和国海事局2004年第1期海船船员适任证书全国统考试题(总第33期)科目：轮机英语试卷代号：803适用对象：无限、近洋航区3000KW及以上船舶大管轮（本试卷卷面总分100分，及格分为70分，考试时间为100分钟）答题说明：请选择一个最合适的答案，并将该答案按答题卡要求，在其相应位置上用2B铅笔涂黑。

第1题至68题，每题1分，第69题至76题，每题1.5分,第77题至78题,每题10分。

一、单项选择题：1．The exhaust valve is opened at about the same time ______the air inlet ports are opened.A. beforeB. afterC. whenD. until2．Cylinder wall temperature, fuel oil sulphur, and oil passage ______.A. are interdependentB. are not interdependentC. have nothing to do with each otherD. are independent3．Acid solution ______ in the system can be tested from time to time by putting some on to a piece of lime.A. strengthB. denseC. percentageD. velocity4．Machinery driving fuel oil transfer and fuel oil service pumps must be fitted with a remote means of stopping the machinery from ______.A. within the space concernedB. outside the space concernedC. the throttle stationD. within the fire room5．Cylinder oil is a high viscosity mineral oil, with a ______machined to the anticipated sulfur content of the fuel.A. TANB. TBNC. SAND. SBN6．The tendency for lubricating oil to thin out at high temperatures and thicken at low temperatures will be characterized by a ______.A. low viscosity indexB. high viscosity indexC. high neutralization numberD. low demulsibility quality7．When considering the lowest fuel system operating temperature, ______ are important.A. specific gravity or relative densityB. open flash point and closed flash point valuesC. higher calorific and lower calorific valuesD. cloud point and pour point values8．In ______the incoming air is directed upwards, pushing the exhaust gases before it and then the exhaust gases travel down.A. loop scavengingB. cross scavengingC. uniflow scavengingD. supercharging9．______ is usually driven by the engine camshaft and supplies pilot air to the cylinder air start valve.A. An air receiverB. An operating valveC. An automatic valveD. An air distributor 10．Which of the following conditions can cause above normal air temperature to develop in the intake manifold of a four-stroke/cycle, turbo-charged, diesel engine?A. Clogged air intake filters.B. Piston blow-by.C. A defective after-cooler.D. Faulty exhaust valves.11．Misalignment of an engine crankshaft can be detected by measuring______of crank webs for each unit of the engine.A. diametersB. lengthsC. deflectionsD. none of the above12．A crankshaft whose center of gravity coincides with its center line is said to be ______.A. dynamically balancedB. statically balancedC. counter balancedD. resonantly balanced 13．In a diesel engine, the main bearings are used between the ______.A. connecting rod and the crankshaftB. wrist pin and the connecting rodC. camshaft and the engine blockD. crankshaft and the engine block14．We should not start the engine unless the turning gear is ______.A. onB. disengagedC. boltedD. unscrewed15．When the exhaust ports or valves are opened, the ______begin to exhaust.A. carbon and waterB. refrigeration steamC. burnt gasesD. oil sludge16．We'd better take _____to save fuel consumption, you know it would be useless to get there earlier.A. nominal speedB. economical speedC. rated speedD. slow speed17．Shaft sealing in a centrifugal pump can be effected by ______.A. the mechanical sealB. packed stuffing boxesC. either A or BD. neither A nor B 18．Most pump manufacturers recommend that the suction piping dimension for centrifugal pumps be ______.A. one size smaller than the pump suction nozzleB. the same size as the pump suction nozzleC. one size larger than the pump suction nozzleD. installed with a short radius elbow at the pump19．The water level in a steaming auxiliary boiler will always ______.A. rise when the steam pressure is increasedB. remain constant as long as the feed pump operatesC. fall when the steam pressure is decreasedD. vary as the steam demand changes20．The concentration of total dissolved solids in the water of an auxiliary boiler can increase as a result of ______.A. seawater contaminationB. frequent surface blowsC. dissolved oxygen deaerationD. frequent bottom blows21．Sediment collects in a tubular purifier______.A. on top coverB. on sides of bowlC. in drain line on the discsD. on the discs 22．The operating water is supplied under the ______of an oil separator.A. sliding bowl bottomB. bowl hoodC. bowlD. filter units23．The bilge main is arranged to drain any watertight compartment ______ballast, oil or water tanks and to discharge the contents overboard.A. rather thanB. other thanC. in addition thatD. except for24．The oil sludge is burnt in the ______onboard. I‟ll show you the ashes.A. boilerB. main engineC. auxiliary engineD. incinerator25．When making entries in the Oil Record Book, the date, operational code, and item number shall be inserted in the appropriate columns. Furthermore, the required particulars shall be ______.A. recorded only for accidental oil dischargesB. recorded only for operations involving discharge of oily wasteC. signed by the oiler who enters them in the Oil Record BookD. recorded chronologically in the blank space26．Which bearing will carry the load on two small points diametrically opposite to each other?A. NeedleB. Tapered rollerC. RollerD. Ball27．In a general cargo crane, ______ is fitted to raise or lower the jib.A. the slewing motorB. the luffing motorC. the hoisting motorD. none of the above 28．In an electro-hydraulic steering gear system, when will the variable displacement pump be placed on stroke?A. When the helm is at any angle other than amidships.B. When the six-way valve is opened.C. When the ram relief valves lift.D. When the rudder angle is different from the position of the helm.29．With reference to rules governing steering gear, which one of the following rules is incorrect ?A. It is required that all ships are provided with two independent steering gear systems that is onemain and one auxiliary.B. The auxiliary gear could be power operated in passenger ships.C. The auxiliary gear must be of adequate strength and sufficient to steer a ship at navigablespeed.D. All moving parts of the steering gear must be guarded against any possible damage.30．A refrigeration system contaminated with moisture can be affected by ______.A. acid formationB. sludge formationC. ice in the expansion valveD. all of the above 31．A dirty intercooler on the ship service air compressor will result in ______.A. decreased compression ratioB. higher than normal power consumptionC. un-loader malfunctionD. water in the lubricating oil32．Which of the problems listed would cause the discharge temperature of an R-22 refrigeration compressor to increase?A. Thermal expansion valve frozen open.B. Suction gas heat exchanger bypassed.C. Condenser clogged or fouled.D. High pressure cutout switch inoperative. 33．Zinc rods are installed in the refrigeration system ______.A. liquid strainerB. liquid receiverC. saltwater condenserD. evaporator34．The fire pumps must be capable of delivering a total quantity of water at a defined head , not less than______ of the total bilge pumping capacity.A. one-thirdB. two-thirdsC. one-fourthD. two-fourths35．Which of the following factors will have the greatest effect on the heating load within a conditioned space?A. Solar gainB. Infiltration and ventilation airC. Occupants inside the spaceD. Entertainment equipment within the space36．On commonly used ships, if two A.C. generators are operated in parallel, the load is distributed evenly by ______.A. varying the D.C. exciter voltageB. varying the reluctance of the air gapC. regulating the speed of prime moverD. shorting out part of the armature windings 37．Which of the listed sections of an emergency switchboard is used to supply power for alarm signals under emergency conditions?A. The generator and bus transfer sectionB. The 450 volt, 60 cycle, 3 phase busC. The 120 volt, 3 phase, 60 cycle busD. The 24 volt DC bus38．Which of the following should be the FIRST step in removing a generator from parallel operation?A. Trip the generator off the switchboard.B. Turn off all electrical equipment.C. Remove the load from the 'off going' generator.D. Increase the cycles of the generator staying on the line.39．Which of the listed devices is used to measure pressure and convert it to an electrical signal?A. TransducerB. ReducerC. TransformerD. Rectifier40．An indicator on the main switchboard should show ______the emergency battery is in service or not.A. whichB. whenC. weatherD. whether41．The number of cycles per second occurring in AC voltage is known as the ______.A. phase angleB. frequencyC. wave formD. half mode42．While on watch in the engine room, you hear a continuous sounding of the general alarm. Which of the following actions should you take?A. Make an entry in the official logbook.B. Open the master control valves on the fixed CO2 system.C. Start the fire pump and check discharge pressure.D. Secure auxiliary condenser overboard discharge.43．The additional mark ______ in the Classification Certificate for Machinery represents that personnel are watching at engine assembly control station and monitoring all machinery andelectronic devices.A. BRCB. MCCC. AUT-0D. AUT-144．If the atomizer holes are enlarged beyond the maker's recommended size , the atomizer must be ______.A. repairedB. replacedC. replenishedD. repeated45．In a diesel engine, an extremely leaking exhaust valve can cause ______.A. misfiringB. pre-ignitionC. interrupted scavengingD. reduced scavenging 46．One cylinder of a diesel engine is persistently knocking and does not cease when the fuel supply to that cylinder is secured. Which of the following problems may be the cause?A. Low loading of the cylinder.B. Excessive cooling of that piston.C. Sluggish ring action on the piston.D. A mechanical defect in a working part.47．Poor combustion in a diesel engine can be caused by ______.A. high compression pressureB. low intake air temperatureC. low exhaust pressureD. high scavenge air temperature48．Any increase in the exhaust back pressure of a four-stroke/cycle diesel engine will ______.A. reduce engine horsepower outputB. aid in silencing the exhaust noiseC. increase the mean effective pressureD. contribute to effective cylinder scavenging 49．Hearing a strong noise, ______at once.A. the engine stoppedB. the engine was stoppedC. he stopped the engineD. he had stopped the engine50．Fix the fuel injector into______after repair.A. the cylinder linerB. the cylinder coverC. the cylinder jacketD. the piston 51．Lower suction pressure of a pump may be caused by ______.A. too much air in the pipe lineB. closed inlet valveC. empty tankD. leaky pipe52．Diesel engine exhaust temperatures may be used to indicate ______.A. leaking exhaust valvesB. an overloaded cylinderC. a clogged injector nozzleD. all of the above.53．The indications of a scavenge fire are excessive black smoke, ______ and peeling from scavenge trunking.A. turbo-chargers surgeB. spark seen from the drainsC. paint blisteringD. all above are right 54．It is well known that the whole power distribution of the ship‟s electrical services mainly depend on the______.A. sub-boardsB. main switchboardsC. emergency switchboardsD. distribution boards 55．Combustion knock can occur in the cylinders of a diesel engine under any condition permitting ______.A. a shortened ignition delay periodB. a lean fuel/air mixtureC. excess fuel in the combustion chamberD. rapid vaporization of injected fuel droplets56．Oil mist detectors are usually used on board to detect oil mist density within ______.A. the engine crankcaseB. the engine scavenge boxesC. drain tanksD. fuel tanks57．Before doing maintenance on electrical equipment, you should ______.A. turn off power firstB. turn on power firstC. with a test pen in handD. tell C/E 58．When start a screw pump, the by pass valve should be ______.A. closedB. opened fullyC. cracked openD. partly open59．Our company has built a new ship in Hamburg and I am going to fly there to______.A. hand it overB. take it overC. carry it overD. carry it out60．Routine monitoring of a diesel engine should include ______.A. checking for leaksB. checking temperatures and pressuresC. listening for abnormal noisesD. all of the above.61．Which of the precautions listed should be observed when taking on diesel fuel?A. Secure all lighting to the main deck.B. Provide a portable fan to blow away fumes.C. Prohibit smoking in the area.D. Display a black triangle during daylight hours.62．The conventions under which the port state control inspection is carried out include all the following except______.A. SOLAS 74B. MARPOL 73/78C. STCW 78/95D. ISM Code63．A portable foam fire extinguisher is placed in operation by ______.A. turning it upside downB. pressing the foam leverC. squeezing the grip handleD. opening the hose valve 64．In cleaning up an oil spill, the use of chemical agents would ______.A. absorb the oil for easy removalB. remove the oil from the waterC. disperse or dissolve the oil in the waterD. not affect the oil65．While on watch in the engine room, you hear a continuous sounding of the general alarm. Which of the following actions should you take?A. Make an entry in the official logbook.B. Open the master control valves on the fixed CO 2 system.C. Start the fire pump and check discharge pressure.D. Secure auxiliary condenser overboard discharge.66．One of the disadvantages of using carbon dioxide to extinguish a fire in an enclosed space is ______.A.the … snow ‟ whic h is sometimes discharged along with the gas is toxicB. prolonged exposure to high concentrations of CO 2 gas causes suffocationC. rapid dissipation of the CO 2 vaporD. the CO 2 gas is lighter than air and a large amount is required to extinguish a fire near the deck 67．The company should establish procedures to ensure that the ship is maintained______ the provisions of the relevant rules and regulations.A. out of accordance withB. in relation toC. in conformity withD. in connection with 68．The maximum Blood Alcohol Concentration (BAC) rate on board shall not be more than ______ by weight any time when being tested. But watch-keepers are not allowed to drink any alcoholic beverage ______before their watch.A. 0.08%/ 4 hoursB. 0.08%/ 2 hoursC. 0.04%/ 4 hoursD. 0.04%/ 2 hours二、关联题（每组关联题题干下有4个小题，每小题4个选项）第一组：Because the exhaust gas driven turbo-blower cannot provide enough air at low engine speeds, the pressurized air should be cooled to increase the charge air density. As the air passes through the charge air cooler, its temperature may be reduced and moisture condensed, with the condensate in danger of being carried into the engine. So a water separator should be mounted beneath the bottom part of the engine inlet manifold.Lubricating oil from the compressor will pass along the air lines and deposit on them, in the event of a cylinder air starting valve leaking, hot gases would pass into the air pipes and ignite the lubricating oil. If starting air were supplied to the engine, this would further feed the fire andcould lead to an explosion in the pipelines. In order to prevent such an occurrence, cylinder-starting valves should be properly maintained and the pipelines regularly drained. Also oildischarged from compressors should be kept to a minimum, by careful maintenance.69.A water separator is used in order to ______.A. keep the air from being carried into the engineB. keep the moisture from being condensedC. keep the danger from being carried into the engineD. take away the condensate from the air70.Why should we use a charge air cooler?A. In order to increase the charge air temperature.B. In order to increase the charge air pressure.C. In order to reduce moisture condensed.D. In order to increase the charge air density.71.Which of the following may cause an explosion according to the passage?A. Starting air cannot be supplied into the engine.B. Air starting valve leaks and starting air is supplied into the engine.C. Cylinder-starting valves are properly maintained.D. Oil discharged from compressors is kept to a minimum.72.In order to avoid igniting the lubricating oil and leading to an explosion in the pipelines, ______.A. pipelines should be regularly drainedB. cylinder-starting valves should be properly maintainedC. oil discharged from compressors should be kept to a minimumD. A+B+C第二组：Maintenance and OverhaulingSatisfactory and proper operation of the engine depends not only on correct manoeuvring but also on how well it is kept in order. Regular maintenance of the engine helps a lot in preventing early wear of parts and in ensuring a long service as well as the working efficiency of the engine.With various types of engines, of course, the maintenance and overhaul is different. Instruction books are to be referred to whenever necessary.The individual parts of the engine should be inspected and thoroughly cleaned at regular intervals. The periods for such overhaul work depend largely on the quality of the lubricating oil and fuel, on the load and on the efficiency of the operator in locating troubles and remedyingthem in time..During overhaul the safety rules have to be observed as required in order to prevent the danger of accidents. Special precaution is necessary when the engine is running with the lagging removed. During overhauls with the engine shut down, safety measures should be taken to avoid undesirable turning of the crankshaft. All pipes should be pressure-relieved before the repair work is started. Read the pressure gauges and /or check the pipes by carefully loosening the screw plugs or connections.If some parts of the running gear are dismantled, before using the turning gear, make sure that no loose parts are jammed in the crankcase where it is easy for them to cause damage.73.According to the passage, which the following factors are involved to keep the enginesatisfactory and proper running?A. correct manoeuvringB. keep the engine in orderC. refer to the instruction booksD. all of above74.According to the passage, which the following items do influence the periods of the overhaulingwork?A. the quality of the lubricating oilB. the load of the engineC. the efficiency of the operator in locating troubles and remedying them in timeD. all of the above75.According to the passage, we should take special precaution when ____.A. the engine is running with the removal of laggingB. the engine is shut downC. pipes are removedD. the screw plugs or connections are lossened76.According to the passage, line 17 the bold and italic word “it” may propabably mean ____ .A. running gearB. turning gearC. crankcaseD. to cause damage中华人民共和国海事局2003年第3期海船船员适任证书全国统考试题(总第32期)科目：轮机英语试卷代号：803适用对象：无限、近洋航区3000KW及以上船舶大管轮（本试卷卷面总分100分，及格分为70分，考试时间为100分钟）答题说明：请选择一个最合适的答案，并将该答案按答题卡要求，在其相应位置上用2B铅笔涂黑。

甲类大管轮考试42期试卷

中华人民共和国海事局2007年第1期海船船员适任证书全国统考试题(总第42期)科目：船舶辅机试卷代号：841适用对象：3000KW及以上船舶轮机长/大管轮（本试卷卷面总分100分，及格分为70分，考试时间为100分钟）答题说明：本试卷试题均为单项选择题，请选择一个最合适的答案，并将该答案按答题卡要求，在其相应位置上用2B铅笔涂黑。

每题1分，共100分。

1. “液压锁”通常是由一对______组成。

A. 直控顺序阀B. 外控顺序阀C. 液控单向阀D. 单向节流阀2. 先导型溢流阀用于远控调压时导阀弹簧张力应。

A. 调至较大B. 调至最小C. 调至适中D.按要求随时调整3. 调速阀的作用是控制______。

A. 油泵转速B. 执行元件速度C. 管路中油的流速D. 执行元件速度和油泵转速4. 如右图所示，阀件3是______阀。

A. 安全B. 卸荷溢流C. 电磁溢流D. 定值减压5. 如4题图所示，此系统为______。

A. 高压供油系统B. 低压供油系统C. 高、低压油泵串联供油系统D. 高、低压油泵并联供油系统6. 如4题图所示，如果负载升高，执行机构中的油压继续升高，达到阀件3的开启压力时______。

A．泵1和泵2同时向执行机构供油B．只有泵2向执行机构供油，泵1卸荷C．只有泵1向执行机构供油，泵2卸荷D．因为溢流阀开启，所以两台泵都不能向执行机构供油，两台泵都属于卸载状态7. 如4题图所示，该系统开始工作时，______向系统供油。

A. 泵1B. 泵2C. 泵1、泵2同时D. 不一定8. 溢流节流阀稳定流量的方法属______补偿型。

A. 温度B. 粘度C. 压力D. 温度和压力9. 以下液压控制阀中属于压力控制阀的是______。

A. 卸荷阀B. 溢流节流阀C. 液控单向阀D. 换向阀10. 对开度既定的节流阀的流量影响最大的是______。

A. 阀前后油压之差B. 油温C. 节流口吸附层厚度D. 油污染程度11. O型三位四通换向阀中位时______。

甲类三管轮机英语考试真题

中华人民共和国海事局第42期航海英语真题(附答案)

中华人民共和国海事局2007年第1期海船船员适任证书全国统考试题（总第42期）科目：航海英语试卷代号：903适用对象：无限航区、近洋航区二/三副(本试卷卷面总分100分，及格分为70分，考试时间100分钟)答题说明：请选择一个最合适的答案，并将该答案按答题卡要求，在相应位置上用2B铅笔涂黑．第1题至68题，每题1分，第69题至76题，每题1．5分，第77题至81题每题4分。

一．单项选择题1.By paying out more anchor cable，you ______.A. decrease the holding power of your anchorB. decrease the swing of your vessel while at anchorC. increase the holding power of your anchorD. increase the possibility that your vessel will drag anchor2.______ get your engine ready before six tomorrow morning．A.You’d betterB.You would betterC.You at leastD. You at most3.The outer limit of the Traffic Separation Schemes is ______adjustment as necessary to comply with the port regulations．A.subjected中华人民共和国海事局2009年第5期海船船员适任统考试题（总第48期）科目：航海英语试卷代号：903适用对象：无限航区、近洋航区船舶二、三副(本试卷卷面总分100分，及格分为70分，考试时间100分钟)答题说明：请选择一个最合适的答案，并将该答案按答题卡要求，在相应位置上用2B铅笔涂黑。

轮机英语42期考题

中华人民共和国海事局2007年第1期海船船员适任证书全国统考试题(总第42期)科目：轮机英语试卷代号：801适用对象：无限、近洋航区3000KW及以上船舶轮机长（本试卷卷面总分100分，及格分为70分，考试时间为100分钟）答题说明：请选择一个最合适的答案，并将该答案按答题卡要求，在其相应位置上用2B铅笔涂黑。

第1题至68题，每题1分，第69题至76题，每题1．5分，第77题至78题，每题10分。

一、单项选择题1.During the valve overlap period, the exhaust pressure of a turbocharged four-stroke/cycle dieselengine must be less than the intake manifold pressure to ensure ______.A. effective cylinder scavenging and coolingB. constant pressure from the turbochargersC. cooler operation of the exhaust systemD. effective constant pressure for turbocharger operation2.The relative air pressure in the inlet manifold of a turbocharged diesel engine is usually ______.A. greater than the average exhaust manifold pressureB. less than the average exhaust manifold pressureC. greater at the turbine wheel than at the impellerD. greater at reduced engine speed3.Cooling of engines is achieved by circulating a cooling liquid around internal ______within theengine.A. airB. passagesC. pipesD. means4.An over-speed safety device is usually fitted to a generator engine for ___ in the event of over-speed.A. stabilizing the ship speedB. increasing the fuel pump settingC. braking the crankshaftD. cutting power off the engine5.The amount of fuel delivered by a helical plunger fuel injection pump is controlled by ______.A. varying the pump discharge pressureB. varying the pump return pressureC. rotation of the pump plungerD. rotation of the pump barrel6.Prolonged operation of a diesel engine with a closed cooling water system, at lower than normaldesigned operating temperatures can ______.A. increase power outputB. decrease lube oil viscosityC. eliminate fuel knockD. cause sulfuric acid formation7.If the sump ______ were to rise this would indicate water leakage into the oil and an investigationinto the cause must be made.A. temperatureB. viscosityC. leverD. level8.In a diesel engine, when refitting piston rings you should______. I. check the ring gap at thesmallest diameter of the cylinder II. remove carbon from the ring grooveA. I onlyB. II onlyC. both I and IID. neither I nor II9.Fuel has been injected but ignition fails. The possible cause may be ______.A. slightly leaky exhaust valveB. increased scavenging air temperatureC. engine cylinders not scavenged sufficientlyD. too much water in the fuel oil 10.If some of the cylinders are not firing, the ones affected may be determined by watching _____.A. the exhaust temperatureB. the exhaust pressureC. the governorD. the fuel flow meter11.The major cause of trouble in a mechanical-hydraulic governor is contamination of the hydraulicfluid by ______.A. dirtB. fuel oilC. governor cooling waterD. fuel oil tar(焦油)12.Modern marine diesel engines equipped with mechanical fuel injection operate on a combustionphase within the cycle which is ______.A. entirely constant pressureB. entirely constant temperatureC. a combination of constant volume and constant pressureD. a combination of constant temperature and constant pressure13. A controllable pitch propeller on a diesel driven vessel eliminates the need for ______.A. friction clutchesB. disconnect clutchesC. reversing gearsD. reduction gears14.Propeller pitch speed minus ship speed divided by the propeller pitch speed is termed ______.A. apparent slipB. true slipC. pitchD. propulsive efficiency15.Pitted reduction gear teeth having a deep blue color with evidence of overheating have beenoperated with ______.A. excessive speedB. improper warm-upC. extreme misalignmentD. inadequate lubrication16. A bypass line provided around a waste heat auxiliary boiler in a diesel engine exhaust system,may be used to avoid boiler ______.A. corrosion at low engine loadsB. erosion at high engine loadsC. overload at high engine loadsD. scaling at all exhaust temperatures17. A firebox explosion in an automatically fired auxiliary boiler may be the result of ______.A. excessive purging before lighting offB. insufficient trail for ignition periodC. a faulty transformer in the ignition circuitD. insufficient purging before lighting off18. A spur gear pump should be operated with the discharge valves ______.A. slightly openedB. throttledC. fully openedD. halfway opened19. A centrifugal pump may fail to deliver water when first started if the ______.A. water seal pipe is pluggedB. pump is not primedC. seal ring is properly locatedD. impeller is flooded20.The sum of the sensible heat and the latent heat of any substance is known as ______.A. total heatB. residual heatC. specific heatD. superheat21.As the amount of moisture in the air increases, the difference between the dry bulb and wet bulbtemperatures will ______.A. increaseB. decreaseC. remain unchangedD. be greatest at dew point22.Which of the problems listed could cause erosion of the expansion valve disks and seats?A. Overcharging the system with refrigerantB. Faulty compressor suction valveC. Failure of the high pressure cutoutD. Flash gas formed in the liquid line23.Sludge may be formed in the oil in the crankcase of a reciprocating air conditioning compressoras a result of ______.A. refrigerant bubbles in the lube oilB. refrigerant reducing the lube oil viscosityC. oxidation of the lube oil from overheatingD. reducing the floc or cloud point of the oil24.______ are used to ensure that ships don't discharge oil when pumping out oily water from anyoil contaminated space.A. BoilerB. IncineratorC. Oily water separatorD. Sewage treatment unit25.The ______ is used to burn oil sludge.A. clarifierB. oily water separatorC. incineratorD. distiller26.Most marine biological sewage treatment plants consist of all the following statements except______.A. aeration tanksB. settling tanksC. disinfection agentD. anaerobic bacteria(厌氧细菌)27.The separation of impurities and water from ______is essential for good combustion of dieselengines.A. lube oilB. fuel oilC. turbine oilD. grease28.Which of the listed problems could produce a high absolute pressure within a flash typeevaporator?A. production of high salinity distillateB. seawater feed temperature below 165℃C. a leak in the first stage demisterD. a cracked distillate pump vent line29.Among the basic categories of equipment, which of the following are used to convert mechanicalinto hydraulic energy?A. the hydraulic pumpsB. valvesC. hydraulic cylindersD. hydraulic motors30.Mooring winch should be equipped with mechanical brakes which are capable of holding ______.A. half the breaking strength of the mooring lineB. the full breaking strength of the mooring lineC. the maximum expected tension of the mooring lineD. 50% over the working tension of the mooring line31.According to Regulations, a power driven auxiliary steering gear for a vessel capable of a 12 knotservice speed, must be able to meet the rudder movement requirements at which of the minimum vessel speeds listed below?A. 6 knotsB. 7 knotsC. 9 knotsD. 12 knots32.Pressure drop in an operating hydraulic system is developed ______.A. only by the pump as its primary functionB. by resistance to the fluid flow through the systemC. by the thermal input to the system's fluidD. solely(单独地) by the charge applied by the accumulators33.The frequency of an alternator at a given RPM is determined by the ______.A. number of turns of wire in the armature(电枢) coilB. number of magnetic polesC. strength of the magnets usedD. output voltage34.You are attempting to parallel two AC generators, and the synchroscope(同步器) pointer isrevolving in the fast direction. This indicates that the frequency of the incoming machine is______.A. higher than the bus frequencyB. lower than the bus frequencyC. the same as the bus frequency but out of phase with itD. the same as the bus frequency and the circuit breaker may be closed at any pointer position35.The load sharing characteristics of two diesel generators operating in parallel are mostlydependent on their governor ______.A. load limit settingsB. idle speed settingsC. speed limit settingsD. speed droop settings 36.The first requirement for logical troubleshooting of any system is the ability to _______.A. collect all available data on a casualtyB. recognize normal operationC. identify the probable cause of a symptomD. isolate the faulty component37.The purpose of a main switchboard circuit breaker's reverse-power trip is to ______.A. prevent main circuit overloadB. protect the circuit breaker blowout coilC. prevent alternator motorizationD. prevent low voltage tripout38.An advantage of DC motors over AC motors is that they ______.A. are less expensiveB. require less maintenanceC. can be started across the lineD. offer a more effective means of controlling speed39.Prior to any overhaul work on electric equipment, it is important to ensure the circuits are ______.A. liveB. deadC. excitedD. on line40. A circuit breaker differs from a fuse in that a circuit breaker ______.A. melts and must be replacedB. is enclosed in a tube of insulating material with metal ferrules(环) at each endC. gives no visual indication of having opened the circuitD. trips to break the circuit and may be reset41.The ratio of output response to a specified change in the input is known as ______.A. primary feedbackB. sensitivityC. deviationD. dead band42.Which of the listed devices is used to measure pressure and convert it to an electrical signal?A. TransducerB. ReducerC. TransformerD. Rectifier43.The meat box temperature control circuit, as used in the ship service refrigeration system, is anexample of ______.A. two position controlB. single speed floating controlC. proportional(比例) controlD. reset control44.If both the ‘high level’and ‘low level’ alarms come on for the same address of a centralized（集中的） control console, the most likely problem is a/an ______.A. sensor failureB. failed alarmC. low levelD. extremely high level45.When under maneuvering conditions with the machinery being manually operated the control unitor console should be ______.A. automatically controlledB. continuously mannedC. off powerD. continuously unmanned46.Before the seas get rough, it is a good safety practice to______.A. secure loose gearB. move quickly about the shipC. increase lightingD. shutdown auxiliary equipment47.Which of the listed classes of fire would most likely occur in the engine room of a vessel?A. Classes A and BB. Classes B and CC. Classes C and DD. Classes A and D48.To prevent the spread of fire by conduction, you should ______.A. cool the bulkheads around the fireB. remove combustibles from direct exposureC. close all openings to the areaD. shut off all electric power49.The fire extinguishing action of CO 2 comes mostly from ______.A. breaking the fire chemical chain reactionB. smotheringC. coolingD. isolating the heat from the fuel50.The necessity for administering artificial respiration may be recognized by the victim's ______.A. vomiting(呕吐)B. blue color and lack of breathingC. irregular breathingD. unconscious condition51.When you notice oil on the water near your vessel while taking on fuel, you should FIRST______.A. stop loadingB. notify the senior deck officerC. notify the terminal superintendentD. determine whether your vessel is the source52.The flash point of a liquid refers to the temperature ______.A. at which a liquid will give off inflammable（易燃的） vaporsB. at which a liquid will burn steadilyC. at which a liquid will explodeD. that a liquid must reach before it will flow readily53.Why is it necessary to have routine testing of the cooling water?A. To ensure that the proper residuals of treatment chemicals, as specified, are maintained alltime.B. To trace leakage in the cooling water system.C. It is not necessary.D. To detect the presence of contaminants in the water that may be injurious to the coolingsystem.54.“AMIDSHIPS ” refers to______.A. Back of the vesselB. The middle portion of a shipC. A backward movement of a vesselD. Across the ship, at right angles to the fore-and-aft centerline55.______, the second one will start automatically.A. If the first stand-by set failedB. If the first stand-by set failsC. If the first stand-by set will failD. If the first stand-by set doesn’t fail56.The additional mark ______in the Classification Certificate for Machinery means propulsionapparatus is remotely controlled on the navigating bridge control station, and engine assembly control station is unmanned periodically.A. BRCB. MCCC. AUT-0D. AUT-157.The core(核心) item in the Oil Record Book Part I is______, and its main content is______.A. Item A, BALLAST OR CLEANING OF FUEL OIL TANKSB. Item B, DISCHARGE OF DIRTY BALLAST OR CLEANING WATER FROM FUEL OILTANKS REFERRED TO UNDER SECTION(A)C. Item C, DISPOSAL OF OIL RESIDUES(SLUDGE)D. Item H, BUNKERING OF FUEL OIL58. A shipboard oil pollution emergency plan is required of ______.A. all vessels, regardless of size and commercial applicationB. any barge or other ship which is constructed or operated in such a manner that no oil in anyform can be carried aboardC. an oil tanker of 150 gross tons or above, or other ship of 400 gross tons or aboveD. an oil tanker of 400 gross tons and above, or other ships of 150 gross tons and above59.During PSC inspection related to the ISM Code, ______of the Safety Management System (SMS)should be carried out if clear grounds are established.A. a less favorable inspectionB. a more favorable inspectionC. a less detailed inspectionD. a more detailed inspection60.All of the followings are the detainable deficiencies under the SOLAS Convention except ______.A. failure of proper operation of propulsion and other essential machinery, as well as electricalinstallationB. failure of the proper operation of the main and auxiliary steering gearC. failure of engineering watch arrangements to conform to the requirements specified for theship by AdministrationD. failure of the proper operation of emergency generator, lighting, batteries and switches61.When deciding the composition of the engineering watch, which may include______appropriately(适当地), many factors shall be taken into account.A. satisfied engineersB. qualified ratingsC. satisfied chief engineerD. qualified chief engineer62.The officer in charge of the engineering watch shall notify the chief engineer withoutdelay______.A. in any emergency or if in any doubt as to what decision or measures to takeB. in the event of any impending（迫近） action in machinery spaces that may cause reductionin ship’s speedC. when isolating and bypassing machinery to be worked onD. co-operating with any engineer in charge of maintenance work63.At an unsheltered(开放的) anchorage the chief engineer officer shall consult with ______whetheror not to maintain an underway watch.A. the engineer officer in charge of watchB. the deck officer in charge of watchC. the masterD. the chief mate64.When off loading garbage to another ship, your records must identify that ship by name and______.A. home portB. operator's name of recordC. official numberD. master's name65.Bilges may be pumped______.A. on the outgoing tideB. overboard after darkC. overboard through an anti-pollution equipmentD. anytime in an emergency, i.e. main engine lube oil failure66.According to the international regulations concerning the prevention of pollution of sea areasfrom ships, the disposal into the sea of all plastics is _____.A. welcomeB. admitted in some special sea areasC. prohibitedD. acceptable67.The Company should establish in the SMS that ______has the overriding authority and theresponsibility to make decisions with respect to safety and pollution prevention.A. the masterB. the chief engineerC. the officer on dutyD. the engineer in charge of watch68.The ship security officer shall have knowledge and have received training, taking into account theguidance given in Part B of______.A. the ISM CodeB. the ISPS CodeC. the IBC CodeD. the IGC Code二、关联题（关联题题干下有4个小题，每小题4个选项）第一组：Spark erosion is caused by a voltage discharge between the main bearing and journal surface. The cause of the potential is the development of a galvanic element between the ship’s hull, sea water, and the propeller shaft/crankshaft.The oil film acts as a dielectric. The puncture voltage in the bearing depends on the thickness of the oil film. With increasing engine ratings, the specific load in the main bearing is increased. This will reduce the oil film thickness, and enable the discharge to take place at a lower voltage level.Since the hydrodynamic oil film thickness varies through a rotation cycle, the discharge will take place at roughly the same instant during each rotation cycle, i.e. when the film thickness is at its minimum. The roughening will accordingly be concentrated in certain areas on the journal surface. In the early stages, the roughened areas can resemble pitting erosion. but later, as the roughness increases, the small craters will scrape off and pick up white metal-hence the silvery white appearance. Therefore, to ensure protection against spark erosion, the potential level must be kept at maximum 80 mV, which is feasible today with a high efficiency earthing device. If an earthing device is installed, its effectiveness must be checked regularly. Spark erosion is only observed in main bearings and main bearing journals.69. According to the paragraph one, a voltage between the main bearing and journal surface isproduced by______.A. propeller rotationB. leakage from M/E electric control unitC. a galvanic elementD. friction between the main bearing and journal surface70. ______engine ratings increase, the hydrodynamic oil film between the main bearing andjournal surface is______.A. The lower/thinnerB. The higher/the thickerC. The lower/thickerD. The higher/thinner71. When will the spark erosion take place on the journal surface during each rotation cycle?A．when the film thickness is at its minimumB．when the film thickness is at its maximumC．when the engine is on its compression strokeD．when the engine is on its exhaust stroke72. During the engine room watch keeping, which equipment must be noted to ensure protectionagainst spark erosion?A．the antifouling plant B．the earthing deviceC．the main engine electric heating coils D．the shaft generator第二组：The 1978 STCW Convention was the first to establish basic requirements on training, certification and watch-keeping for seafarers on an international level. Previously the standards of training, certification and watch-keeping of officers and ratings were established by individual governments, usually without reference to practices in other countries. As a result standards and procedures varied widely, even though shipping is the most international of all industries.The Convention prescribes minimum standards relating to training, certification and watch-keeping for seafarers which countries are obliged to meet or exceed.The Convention did not deal with manning levels: IMO provisions in this area are covered by regulation 13 of Chapter V of the International Convention for the Safety of Life at Sea (SOLAS), 1974, whose requirements are backed up by resolution A.890(21) Principles of safe manning, adopted by the IMO Assembly in 1999, which replaced an earlier resolution A.481(XII) adopted in 1981.The Articles of the Convention include requirements relating to issues surrounding certification and Port State Control.One especially important feature of the Convention is that it applies to ships of non-party States when visiting ports of States which are Parties to the Convention. Article X requires Parties to apply the control measures to ships of all flags to the extent necessary to ensure that no more favorable treatment is given to ships entitled to fly the flag of a State which is not a Party than is given to ships entitled to fly the flag of a State that is a Party.The difficulties which could arise for ships of States which are not Parties to the Convention is one reason why the Convention has received such wide acceptance. By December 2000, the STCW Convention had 135 Parties, representing 97.53 percent of world shipping tonnage.73. Before the establish of the STCW78, the standards of training, certification and watch-keeping ofseafarers _____.A．were established by IMOB．were established by a famous organizationC．were established by individual governments with reference to practices in other countries D．varied widely among countries74. The regulation 13 of Chapter V of the SOLAS 1974 covered _____.Ａ．the manning of shipsＢ．the standards of training certificationＣ．the standards of trainingＤ．the standards of watch-keeping75.One especially important feature of the STCW Convention is _____.Ａ．the adoption of the policy “ more favorable treatment”Ｂ．“ no more favorable treatment” to Non-parties of the conventionＣ．the adoption of the minimum standardsＤ．the adoption of the obligatory standards76.One reason why the Convention has received such wide acceptance is _____.Ａ．that it is only the minimum standardsＢ．that it is the obligatory standardsＣ．that it is established by IMOＤ．difficulties could arise for ships entitled to fly the flag of a Non-Party State三、中译英（共2题，请将答案写在答题纸上）77. 航行期间，主机1号气缸发出敲击声，经确认敲击声来自气缸内部。

《轮机英语》试题（二三管轮）含答案

《轮机英语》试题（二三管轮）含答案《轮机英语》考试复习题(二、三管轮)第一章船舶动力装置1.“Before disconnecting the oil pipe, would you flush the oil retained in the pipe?”asked the oil barge owner.A． by using of fresh waterB．with compressed air √C． by using of sea waterD． with chemical compound2.“Stand by an engine” means _____.A．“prepare to stop the engine”B．“assemble an engine on its bedplate”C．“make an engine ready for starting”√D．“dismantle an engine”3. A _____ is the foundation of the engine, without the support of which the shaft alignmentin particular, and engine structure as a whole, would inevitably be lost.A． FrameB．Bedplate √C． CylinderD． Liner4._____ are commonly used in mechanical-hydraulic governor to sense engine speeds.A． BulbsB． BulksC．Flyweights √D． Flywheels5._____ are generally formed in the frame of the both in-line and Vee engines to givemaintenance access to the crankshaft main and connecting rod large end bearing.A．Doors √B． Aspirate gauzerC． CouplingD． Blind6._____ device is provided to prevent starting air from being admitted to the cylinderbefore the reversing is completed.A．An automatic √B． A transmissionC． A self-regulatingD． An interlocking7._____ fuel oils _____ lubricating oils require treatment before passing to the engine.A．Both/and √B． Neither/norD． Both/or8._____ is sometimes used for piston cooling since leaks into the crankcase would not causeproblems.A． Diesel oilB． Hydraulic oilC．Lube oil √D． Mineral oil9._____ is the removal of exhaust gases by blowing in fresh air.A． Gas exchangeB． ChargingC．Scavenging √D． Supercharging10._____ is used for cylinder and cylinder head, the salt water is used for cooling thelubricating oil, the fresh water in the coolers and the charging air in the air cooler.A． The fuel oilB． The lube oilC． The sea waterD．The fresh water √11._____ may be the first possible cause which makes the engine to lose power or slow downwhen it is running.A．Hot bearing √B． Starting valvesC． Unequal distribution of loadD． Excessive crankshaft clearance12._____ of an engine crankshaft can be detected by measuring deflections of crank websfor each unit of the engine.A．Misalignment √B． LengthC． StrengthD． Stresses13._____ of the A-frames there is a strong cast iron frame called the scavenging air box.A．At the top √B． At the bottomC． In the topD． In the bottom14._____ pistons have low inertia and high coefficient of thermal expansion.A． Cast ironB． Cast steelD．Aluminum √15._____ should not undertake any task which will interfere with the supervision dutiesrelating to the main machinery and associated equipment.A．The watch keeping personnel √B． The chief engineerC． The person on a bunker bargeD． Any of the above16._____ the cylinder will contain a great weight of air and will be capable of burninga great quantity of fuel.A．At the beginning of the compression stroke √B． At the beginning of the suction strokeC． At the end of the working strokeD． At the end of the exhaust stroke17._____ the supercharge pressure is, _____ power an engine develops.A．The higher/the more √B． Higher/moreC． Higher/littleD． The higher/the less18._____ is not properly set thus causing either advanced or retarded firing.A． A pistonB．A fuel injection pump √C． A feed water pumpD． A lube oil pump19._____ rods are not in proper condition so that too much fuel is supplied to thecorresponding cylinder.A． PistonB． SoundingC．Regulating √D． Connecting20._____ shows 1.2 meter and the specific gravity of the oil is 0.96According to the measuringscale, that makes 150 tons.A． The piston rodB． The push rodC．The sounding rod √D． The connecting rod21._____ allows for expansion and water make up in the water cooling system.A． A top tankB．A head tank √D． A drain tank22._____ at the end of the distribution pipe ensures that adequate pressure is maintainedby the pump.A． A relief valveB．An alarm √C． A pressure gaugeD． A non-maim valve23._____ is used for washing and drinking.A． The ballast systemB． The salt water systemC． The bilge systemD．The domestic system √24._____ provide the water to the pistons.A． Pneumatic pipesB． Hydraulic pipesC．Telescopic pipes √D． Operating gas pipes25._____ are fitted in the exhaust system and facilitate charge removal and scavenging ineach cylinder.A．Diffusers √B． CompressorsC． Steam boilersD． Soot blowers26._____ are formed by abrasive particles entering the bearing and scoring the shaft.A．Grooves √B． RecessesC． RidgesD． Nips27._____ are mounted on and bolted to the bed-plate cross girders.A． The crankshaftB． The crankcaseC． The guide-waysD．The frames √28._____ is a precaution which contributes to avoiding trouble under normal operatingconditions.A．Constant inspection √B． Keeping constant loadC． Remaining constant temperatureD． varying speed29._____ is a source of power by which the diesel engine may operate.A． Water energyB． Electrical energyC． Chemical energyD．Heat energy √30._____ is arranged for cleaning the lubricating oil in the system and clean oil can beprovided from a storage tank.A． A filterB．A centrifuge √C． A distillerD． A generator31._____ is fully floating in both connecting rod small end and the piston skirt.A． The piston rodB． The cross head pinC．The gudgeon pin √D． The crank-pin32._____ is made of a boss with separated blades mounted into it.A．A variable pitch propeller √B． A variable pitch nutC． A fixed pitch parallelD． A fixed pitch screw33._____ is usually driven by the engine camshaft andsupplies pilot air to the cylinderair start valve.A． An air receiverB． An operating valveC． An automatic valveD．An air distributor √34._____ neutralizes the acid conditions and_____ cleanses the rings and grooves.A． The detergency/the alkalinityB．The alkalinity/the detergency √C． The inhabitant/the waterD． The additives/the distilled water35._____ or air venting arrangement is fitted to the fuel supply passage.A． An air pumpB． A compressorC． A fuel pumpD．A priming √36._____ providing lubricating films, oil used in marine diesel engines have to remove heatfrom oil cooled piston.A． Except forB． BesideC． ExceptD． In additi on to √37._____ the engines, the diesel engine is_____ used engine on board.A． Between/more commonlyB．Among/the most commonly √C． Between/not more commonlyD． Among/not the most commonly38._____ water is more expensive than fresh waterIt has high specific heat and low viscosity.A．Distilled √B． DistillingC． BoilingD． Boiled39._____ for the camshaft gear train is taken from a spur gear which for a six cylinderengine is at the coupling end.A． The driven gearB．The drive √C． The greaseD． The lubricating oil40._____ in what position the engine stops there will always be at least one of the cylinderswith its starting air valve open to admit compressed air to start the engine.A． BecauseB． Owing toC． ForD．No matter √41._____ is secured by means of side-chock bolts and end-chock bolts.A．The bedplate √B． The columnC． The main bearingD． The double bottom42._____ usually helps to induce air movement to assist combustion.A． Cylinder coverB． Main bearingC． The exhaust valveD． The p iston movement √43._____ may have two emergency source of power, thus requiring two emergency switchboards.A．Large passenger vessels √B． General cargo shipsC． Container shipsD． Oil tankers44._____ supplies pilot air to control the cylinder air start valves.A． An air compressorB． An indicator cockC．An air distributor √D． A safety valve45._____ clearances in the main or crank pin bearings will sometimes be indicated by lossof pressure in the lubricating system before any bearing knock is heard.A． T oo largerB． Too smallerC． ExcessD．Excessive √46.A cast steel strong back is fitted in way of the combustion space to help absorb _____.A． flame temperatureB． fuel oilC． air movementD．gas forces √47.A charge of fresh air is drawn into the engine cylinder and then _____ by the movingpiston_____ very high pressure.A． pressed/toB． pressurized/withC． pushed/inD．compressed/to √48.A common trouble with the fuel pump plunger or fuel valve spindle is _____.A． water leakageB． steam leakageC．oil leakage √D． air leakage49.A common trouble with the fuel pump plungers or fuel valve spindle is _____.A． broken downB． stuckC．oil leakage √D． carbonized50.A diesel engine is similar to a gasoline engine except that the former has no _____.A． cross-headB． cylinderC． connecting rodD．spark plug √51.A diesel engines crankcase oil level is found to be too highYou should suspect that _____.A． the engine was over filledB． there might be a fuel leakC． there might be a water leakD． all of the above √52.A distance piece, known as a _____ may be interposed between the rod and the bearinghousing.A． bearing shellB． bearing linerC．compression plate √D． lead wire53.A distance piece, with ground faces, known as a compression plate, may be interposedbetween the rod and the beating housing, its thickness being chosen to ensure the correct _____.A． compression pressureB． compression testC．compression ratio √D． compression clearance54.A distance piece, with ground faces, may be interposed between the rod and the bearinghousing, its thickness being chosen to ensure the correct _____.A． expansion ratioB． pressure ratioC．compression ratio √D． clearance ratio55.A governor automatically controls engine speed by regulating _____.A． fuel s upply √B． firing orderC． engine loadD． oil level56.A gudgeon pin in a trunk piston may be free to float and rotate, with _____ to limitaxial movement.A． split pinsB． crankpinsC． dipsticksD．circlips √57.A heater in the circuit facilitates warning of the engine prior to ____ by circulatinghot water.A．starting √B． stoppingC． to startD． to stop58.A high temperature alarm or _____ which will melt is used to guard against the explosionof compressor air pipelines.A． a flame trapB． a relief valveC．a fusible plug √D． a bursting cap59.A hot air start pipe indicates that there is _____.A． inefficient coolingB．a leaking air start valve √C． a clogged drain valveD． a leaking air bottle60.A level gauge for a tank is to _____.A． give the pressureB．give the contents √C． give the shape of the tankD． give the accuracy level61.A lubricant often has to perform many duties in any situation, in addition to itsfundamental job of_____.A． resisting oxidizationB．reducing friction √C． promoting moving speedD． developing inertia62.A main bearing consists of two shells which are secured by means of studs and _____.A． tie rodsB． through boltsC． lead wiresD．bearing caps √63.A number of cylinder liners are enclosed in one cast iron casing to form a _____.A． cylinder coverB．cylinder block √C． cylinder frameD． bed-plate64.A reduction in load on a diesel engine results in _____ of speed of the crankshaft.A． a reductionB．an increase √C． an outingD． a downwards65.A separate piston cooling system is used _____ any contamination from piston coolingglands to the piston cooling system only.A． to helpB．to limit √C． to protectD． to remove66.A separate piston cooling system is used to limit any contamination _____ piston coolingglands_____ the piston cooling system only.A． between, toB． either, orC．from, to √D． neither, nor67.A single piece_____ fitted with bronze rings guides the piston in the cylinder liner.A．piston skirt √B． piston crownC． guide wayD． cross-head68.A variable pitch propeller is made _____ a boss with separate blades mounted into it.A． ofB．up of √C． fromD． out69.A: Please tell me the specifications and quantityB: _____.A． Pump diesel oil firstB．300 tons of 180 cst fuel oil √C． The figure is all rightD．OK, I’ll sign it70.About half an hour before the engine is required, cooling water at _____ must be circulated.A． more than the working temperatureB． less than the working temperatureC．the working temperature √D． the same as the surrounding temperature71.According to the way the energy of the exhaust gases is utilized, pressure-charging canbe divided into two main systems, namely, the constant-pressure system and _____.A． the pulse-phase systemB． the pulse Doppler systemC．the pulse system √D． the pulse interval72.Acid solution in the system can be tested from time to time by putting some on to a pieceof lime.A．strength √B． denseC． percentageD． velocity73.Additives _____ protective layers on metal surfaces guarding them against corrosion.A． damageB．form √C． dissolveD． contaminate74.Adjust _____ by means of lead wire.A．the clearance of the main bearing √B． the diameter of main bearingC． the gap of main beatingD． the tolerance of main bearing75.Administrations should bear in mind the significance of_____ in maintaining safety oflife and property at sea and in preventing marine pollution.A． advanced nautical equipmentB． advanced performance main enginesC． emergency equipmentD． communicati on and language skills √76.A-frames and cylinder block is held together by _____ to form a rigid structure.A． connecting rodsB． piston rodsC．tie rods √D． jack-bolts77.A-frames are mounted on the bed plate and support _____ and cylinder block.A． the main bearingB． the cylinder coverC．the entablature √D． the sump78.After "F.W.E." is given, the air system is shut down, the _____ gear put in, all drainsand indicator cocks opened, and the cooling water kept running.A． steeringB． timingC．turning √D． running79.After ensuring that the _____ is correct the bearing clearance should be checked.A． napB． gapC．nip √D． deflection80.After fitting back in place the gear wheels, dont forget _____ them.A．to grease √B． greasingC． oilingD． lubricating81.After passing through the turbine the exhaust gas is conducted out into the _____.A． intercoolerB． compressorC． cylinderD．open air √82.After the engine is warned, we should_____ the turning gear before starting up the engine.A． take inB． put inC．take out √D． put up83.After the order “_____” is given, the air system is shut down, the turning gear putin.A．Finished with Engine √B． Stop the EngineC． Stand-by EngineD． Slow-down Engine84.Air cocks, usually positioned at the _____ in a circulating system, is used to get ridof the air in the system.A． bending jointB． expansion tankC． weldD．the highest point √85.All the rings are slightly rounded on their external top and bottom edges to keep theoil film on the cylinder liner during _____ for new piston rings.A． the running-in period √B． the running processC． gas exchange processD． the boiler firing86.All three systems have the ports _____ to swirl the incoming air and direct it in theappropriate path.A． angledB． roundedC． being angledD．being rounded √87.Although the crankshafts of medium diesel engines appear to be robust, they rely on thesupport of _____ to develop their full strength.A． the piston rodsB． the crank throwsC． the thrust bearingsD． the main bear ings √88.Aluminum pistons have _____ coefficient of thermal expansion compared with those of castiron.A．higher √B． lowerC． the sameD． none of the above89.Among the rings of a piston the _____ one is subjected to the greatest load and temperature.A． bottomB． middleC．top √D． none of the above90.An aluminum piston has lower inertia and higher coefficient of _____ compared to thatof cast iron.A． viscosityB． twisting momentsC． inertiaD．thermal expansion √91.An electrically driven automatically operating auxiliary blower is provided for slowspeed and _____ of a low speed diesel engine.A．manoeuvring operations √B． bad combustionC． coolingD． mooring trial92.An increase in load on a diesel engine results in _____ of speed of the crankshaft.A．a reduction √B． an increaseC． an outingD． a downwards93.An interlock in the remote operating valve line stops the valve _____ when the engineturning gear is engaged.A． to openB．opening √C． openD． opened94.An overspeed safety device is usually fitted to a generator engine for _____ in the eventof overspeed.A．cutting power off the engine √B． increasing the fuel pump settingC． braking the crankshaftD． stabilizing the ship speed95.As a heat engine, _____ energy is the source of power by which the diesel engine canbe operated.A． electricB．heat √C． mechanicalD． exhaust96.As for a diesel engine, lack of combustion air may be due to _____.A．fouling turbine √B． fuel pump faultsC． lubrication failureD． excessive cooling97.As the plunger moves up, the ports are closed and the fuel _____ and delivered to theinjector nozzle at very high pressure.A． being compressedB． to be pumped upC．is pressurized √D． are built up98.At least _____ cylinders in four-stroke engine will be configured to ensure that theengine can be started with the crankshaft at whatever position.A．6 √B． 2C． 12D． 899.At the top of the A-frames there is a strong cast iron frame called _____.A． cylinder linerB． cylinder coverC． the gear boxD． the sc avenging box √100.Be sure to make the engine turn by _____ before starting and after stopping.A． steering gearB．turning gear √C． steering wheelD． turning cycle101.Bearing knocks are likely to occur from _____.A． less clearanceB． dirty lube oilC． overloadD．bearing wear √102.Because the castings of smaller engines are not so big and heavy, _____ and cylinder block may be made in one piece.A．the column √B． the jacketC． cylinder coverD． cylinder liner103.Bedplates are the _____ of the engine, without the support of which the shaft alignment in particular, and engine structure as a whole, would inevitably be lost.A． hullB． projectionC． graphitizationD．foundation √104.Before "stand-by" is rung on the engine telegraph, it is usual to give the main engine _____ ahead and astern.A． a brief trial with turning gearB．a brief trial on power √C． a long trial by steering gearD． one minutes trial with windlass105.Before a marine diesel engine is started the cylinders and pistons must be _____.A． cooled to appropriate temperatureB．warmed up gradually to appropriate temperature √C． opened up and renewedD． ground and polished106.Before being used the fuel service tank should be drained of _____.A． soda solutionB． mechanical impuritiesC． ballastD．water and residuals √107.Before pumping up the crankcase oil, _____ should be worked by hand to minimize corrosive action on the liners.B． the starting valvesC．the cylinder lubricators √D． the turning gear108.Before replacing a piston you should check that all rings are _____.A．free √B． fastenedC． brokenD． stuck109.Before replacing a piston you should check the rings to see that all clearances and gaps are _____ the permissible tolerances.A． aboveB． atC． overD．within √110.Before replacing a piston you should check the rings to see that all clearances and gaps are within the permissible _____.A． deflectionB． discrepancyC． errorD．tolerance √111.Before starting the engine the air bottle should be _____.A．pumped up √B． loadedC． dischargedD． opened112.Before starting the turning gear, _____ should be worked by hand to minimize corrosive action on the liners.B． the starting valvesC．the cylinder lubricators √D． the turning gear113.Blow-off of the relief valves of the engines cylinders may be caused by _____.A． too low leadB． water in fuelC． too tight springD．leakage √114.Blow-off of the relief valves of the main cylinders during operation indicates _____.A． the cylinder cover is crackedB． the injector holes is cloggedC．the cams are not properly set √D． fuel pump is leaking115.Bridge gauge can be used to measure _____ of a diesel engine.A．diameters of journals √B． deflections of crankwebsC． diameters of crankpinsD． none of the above116.Care and cleanliness are required when installing diesel fuel filters _____.A． to prevent the fuel system from becoming air-houndB． to prevent the fuel system becoming clogged with dirty particlesC． both of the abo ve √D．to prevent the lubricating oil from leaking out of the filter element117.Cast iron carrier rings, _____ machined grooves, are provided for all the pistons.A．caulked into √B． caulking intoC． pressed intoD． screwed into118.Charging is the filling of the engine cylinder with a supply of _____ for compression.A． waterB．fresh air √C． fuel oilD． gas119.Charging is the filling of the engine cylinder with a supply or charge of fresh air _____ compression.A． to needB．ready for √C． want toD． going to be120.Charging-air pressure increases if there is incorrect combustion and drop in the _____ of the diesel engine.A． machine efficiencyB． machinery efficiencyC．mechanical efficiency √D． mechanics efficiency/doc/5c7732040.html,pressed air is supplied by air compression to _____.A．the air receivers √B． the starting valvesC． the cylinder coversD． the distributors/doc/5c7732040.html,pressed air is used on board ship _____.A． for starting diesel enginesB． in pneumatic control systemC． in pneumatic toolsD．All the above are true √123.Constant cooling the various components of diesel engine has a number of functions except for _____.A． good lubricationB． low thermal stressC． good mechanical propertiesD．acid corrosion √124.Cooling enables the engine metals _____ their mechanical properties.A．to retain √B． to remainC． to maintenanceD． to have125.Cooling of engine is achieved by circulation a cooling liquid around internal passages within the _____.A． boilerB． heaterC．engine √D． cooler126.Cooling of engines is achieved by _____ a cooling liquid around internal passages within the engine.A． flowedB． flowingC． mixingD．circulating √127.Cooling of engines is achieved by circulating a cooling liquid around internal _____ within the engine.A． air。

轮机英语三管面试

《外派船员面试手册轮机分册》三管轮面试问题及参考答案1.can you tell me about your educational background and workingexperience?Well ,I have been working for several shipping and manning companies in china .but I think x company is my favorite . I was registered here two years ago and I have worked for this company for two times .i am very satisfied with this company .Or I have worked as a seaman for ten years .but I have worked hard on board about 6 years . for the four years I was not on board .i just had my vacation or received training and tests .2 . what are the main duties of the third engineer ?The third engineer is usually responsible for the following :1)watch keeping from 0800 to 1200 ,and from 2000 to 2400 every day .2)operation and maintenance of other auxiliary machinery except under thecharge of the second engineer .3)giving assistance to the first engineer in all technical matters .4)taking positive measures in the safe and efficient operation of allmachinery ,and guarding against fire and oil pollution .5)safety produres and maintenance of all safety equipment ,and enginecontrol system in a thoroughly efficient state .6)carrying out instructions relating to ballasting and deballasting andrecording the operation .7)testing the telegragh before depature and recording all engine movement inthe bell book for staying in the engine room when vessel is entering or leaving a port or when the engine is on standby or in maneuvering .8)emergency fire pump and lifeboat engine .3.what chemicals did you use to treat the boiler water ?when you testalkalinity and acidity of water in boiler by pH test paper ? the result shows the boiler water is in acidiity . please describe what the possible cause is .I have ever used the following brand chemicals :unitor , drew and so on .We should keep the boiler water*s ph scale between 10.5 and 11.5 .If the water become of acidity ( ph scale is below 10 ) ,it is may be caused by following reasons :The water has not been given enough blow down ,or has not been filled enough alkalinity chemicals ..4 .how do you maintain emergency battery ?I should check and fill in some distilled , or electrolyzed solution (电解液)if necessary ,erase the oxide and test the gravity of the specification periodically .the record shall be made after work is done .5.describe the procedure to start an emergency generator ?1) to check the lube oil level in the crankcance and fuel oil level in the tank .2) to see whether there is any leakage .3) to check the air pressure if the generator is air started model ; and to check the battery voltage to see whether it is normal if the generator is the battery started model4）also to make sure there are no obstacles around the machine .6 .which machineries and spare parts should the third engineer be incharge of ?On my last vessel ,I was in charge of the following machines and the spare parts thereof :boiler , emergency batteries ,fresh water generator ,air conditions ,.refrigeration units ,electric insulations ,main switch board ,electric parts of deck machineris (winch ,windlass ,hatch cover equipment ) and some other machines as designated by the chief engineer .7during bunkering in the last vessel ,what were you assigned to do ?or what was your position during bunkering on your last vessel ?Just to listen to the orders from the second engineer ,but usually ,I was assigned to sound the oil level .8.as the third engineer ,what precautions do you need take to preparefor PSC inspection ?The third engineer is responsible for the fire fighting equipment ,life saving applicances and oil pollution prevention equipment . in US , the PSC carry out strict check on this equipment .so in order to meet the inspection ,under the leadership of chief engineers and master ,I have to make a detailed checklist on these equipment to make sure that these equipment are in good order .7what do you know about “SOPEP”?what is VRP , and what is VCP ?for the first question ,please refer to the questions and reference answers for the first engineer .VRP is vessel Response plan ; and VCP is Non-tanker vessel contingency plan .VRP is required oil pollution emergency plan made according to the requirement of oil pollution act 1990 of US ,which is a law ruling the tanker vessels sailing in the waters under the management of the US .in compliance with the legislation of the california state of the US ,all the nontanker vessels should prepare vessel contingency plan .8what is IMO ?what is ISO 9000?what is ISM ?what is SMS system ?IMO is international maritime organization under the united nations .ISO9000 m\eans international standard organization ,an organization making the quality management standards and doing the quality audit service .ISM means international management code for the safe operation of ships and for pollution prevention .this is compulsory rule made by the IMO .The ISM code includes 16 chapters falling falling into two parts :implementation for part one ,and verification and certification for part one .the 16 chapters are : general ,safety and environment protection policy ,company responsibilities and authority ,designated persons ,master responsibility and authority ,resources and personnel ,development of plans for shipboard operation ,emergency preparedness , reports and analysis of non conformity ,accidents and hazardous occurrences , maintainence of the ship and equipment ,documentation ,company verification ,review and evaluation ,certification and verifications and control ,certification and periodical verification ,verification ,interim certification ,and forms of certificates .the last four chapters are newly added in the new version of ISM Code .SMS means safety management system ,and this system is mad based on the 16 elements of ISM Code ,which is a compulsory part SOLAS 74 .the shipowner or manager cannot get document of compliance (DOC) and SMC without audited safety management certificate (SMC) by class designated by the flag registry country adiministration .9.when the fuel is provided by the supplier ,what specifications of the oilcan you get from the supplier receipt ?The following information of the fuel shall be avalaible : density ,viscosity ,temperature as delivered ,water content ,sulfur content ,flash point and so on .10.what is the maximum blood alcohol concertration (BAC) rate on board ?According to the STCW 95 ,the BAC shall not be more than 0.08% by weight any time when being tested ,but the EFR(Code of Federal Regulation )requires the BAC to be no more than 0.04% .watch-keepers ,are not allowed to drink any alcoholic beverage 4 hours berfore their watch . 11tell us briefly about the working principles of the purifier ,the oil water seperator and air compressor .Purifier :the different gravity of two types of liquids: water and oil .the centrifugal force of the water move towards the outside of the disc while the oil ,which is smaller in gravity shall move toward the center of the disc .this makes the seperation of the two liquids .Oil water separator : (1) pump bilge water into first chamber :polymerization of the oil on the gathering plates ,(2) and then through a fine filter (15ppm) separation of water and oil ,(3)discharge of the water overboard via 15ppm monitor and the oil into oil sludge tank .Air compressor :take into the air from the outside atmosphere and compress it with the up going piston .then ,cool the compressed air .then compress the air once again until it reaches the stated pressure (depending on the air bottle allowed pressure )For the maintenance of the air compressor ,fistly ,must check to make sure that the suction valve and outlet valve to be sealed ;then make periodical lifting of the piston to make the pistons are in good condition .must check the crankcance lube oil everyday .14.why do you need to take the lube oil sample for analysis ? in theanalyzing , what can you possibly find ?and if you find these substances ,what are the possible problems the engines may have ?why ?At least ,every three months ..by analyzing the samples of the lube oil ,I can find such things as metal dust ,viscosity ,and other impurities ,this is preventive measures in engine maintenance ..for example ,if I find metal (aluminum ,copper etc )inside the lube oil ,maybe something wrong with the engine and part of the engine is broken .15.how to operate incinerator ? what kind of garbage can not be throwninto incinerator ?First ,check the oil level in the sludge oil tank ,open residue cock and discharge oily water ;heating the sludge oil in the tank up to 90 cent igrade ;start the incinerator .in the beginning ,combustion sludge oil with with diesel oil ,and after the water content in sludge oil is comparatively low ,stop supplying diesel oil and use sludge oil only .attention :the temperature in combustion cannot be higher than the stipulated figures of the incinerator (usually not more than 1200 degree in centigrade )The following garbage cannot be thrown into the incinerator :(1) any containers which have contained gases under pressure ,or aerosol cans into the incinerator .(2) the materials that may produce harmful gases or ashes .(3) the materials that may produce high temperature and prolonged incineration of such materials that may cause damage to the incinerator .16 .when you do the watch keeping in the engine room ,what should you be careful about ?I should take close watch on the fuel oil and lubricating oil condition to notice any possible problems arising from abnormal temperature ,,leakage ,or some other problems ; if hearing is seeing abnormal noises for machines ,I should make a quick judgement and report them to C/E or even master I myself cannot deal with it ,obey the rules of the company and the instruction from C/E and master and some warning from the deck department .l17 when do you have call the chief engineer to the engine room ?In emergency situations such as fire ,explosion and flooding etc ;Some other situations include :(1)if damage to or loss of function of the machinery occurs which maycause a hazard to the safe operation of the vessel(2)if a malfunction of certain equipment occurs that may cause damage orbreakdown of the propulsion machinery ,auxiliary machinery ,monitoring system or speed regulating system ;(3)in situation which the engineer officer of the watch is in doubt as towhich decision to make or which measure to adopt .18 what is your position (station ) in the muster lists ,for example ,during the fire fighting ,abandon vessel ,oil pollution prevention etc ?Abandon vessel :boarding the lifeboat to manage and control the engineFire fighting :manage and operate the emergency fire pmp .Oil pollution prevention ;collect the oil from the vessel or go down with the lifeboart to collect the oil from the sea .19.how is the oil sample taken during bunkering ?Open the cock of the special connector of the oil pipe .drain the fuel oil to the oil sample bottle all the bunkering time . seal the bottles and request the representive of the supplier to sign his name after bunkering .never accept any oil sample taken in advance or taken without the conformation by the 2nd engineer .20.as an engineer ,you must be familiar with SMS .can you please tellwhat is DP(s) and who was the DP of the company you served last time ?DP refers to the designated person in the SMS manual of a company .in my previous vessel company ,there was only one DP ,it was jack .21 .if it is cold ,you will find the air conditioner compressor stop automatically ,do you know the reasons ?When it is cold ,the suction pressure should be low ,if the suction pressure is lower than the setting pressure of the pressure controller ,the compressor will stop automatically .22.what is the use of a purifier ?explain the purpose of a gravity disc ? Purifier is used to separate oil from impurities such as sludge , ash ,various salts and water existing in the oil by means of gravitational rotation (centrifuging ).gravity disc is used for the purpose of establishing the correct oil water interface depending on the oil specific gravity .23.how can you create good vacuum on the fresh water (FW) distiller ? First of all ,to create good vacuum on the FW distiller .i must make sure that the internal chamber is sealed against possible entrance of the air during operation .secondly ,the air ejector and ejector pump should be in good condition .thirdly ,some revelant valves parking should be sealed against air leakage ,lastly ,the unit should be free from scales (水垢) 。

轮机三管轮考证英语44期试题加答案.docx

屮华人民共和国海事局2006年第3期海船船员适任证书全国统考试题（总第41期）科目：轮机英语试卷代号：805适用对象：无限、近洋航区3000KW及以上船舶二/三管轮（本试卷卷面总分100分，及格分为70分，考试时间为100分钟）答题说明：请选择一个最合适的答案，并将该答案按答题卡要求，在其相应位置上用2B铅笔涂黑。

第1题至74题，每题1分，第75题至78题，每题1.5分，第79题至80题，每题10分。

一、单项选择题1.The diesel engine is similar to the gasoline engine in that ______ ・A.Both of them are ignited by compressed airB.Both of them are the forms of external combustion enginesC・ Both of them have spark plugsD. The power is developed by the piston in the cylinder2.The ratio of th brake horsepower to the indicated by the _____ .A.Thermal efficiencyB. Mechanical efficiencyC.Brake theimal efficiency D・ Volumetric efficiency3.The ignition quality, of diesel fuel oil is indicated by the ____ ・A.Specific gravityB. Cetane numberC. Viscosity D・ Calorific value4.How are the pressure and temperature affected in a diesel engine cylinder during compression?A.Pressure and temperature decreaseB.Pressure and temperature increaseC・ Pressure decreases and temperature increasesD.Pressure increases and temperature decreases5.An aluminium piston has lower inertia and higher coefficient of ____ compared to that of cast ironA.Viscosity B・ Twisting moments C・ Inertia D・ Thermal expansion6・ Each cylinder is closed at the top by a ___ ,made of a special heat-resistant steel.A.Cylinder linerB. Coupling flange C・ Cylinder cover D・ Piston7.The amount of fuel delivered by a helical plunger type fuel injection pump is controlledby ______ •A.Rotation of the pump plungerB. Rotation of the pump barrelC・ Varying the pump supply pressure D・ Varying the pump return pressure8.In a diesel engine lube oil system, which of the following parts should be lubricated first?A.Camshaft bearingB. Main bearing C・ Piston crowns D・ Cylinder9.Sacrificial zinc anodes are used on he saltwater side of diesel engine heat exchangers to ____ .A.Reduce electrolytic action on heat exchanger metalsB.Keep heat transfer surfaces shiny and cleanC.Prevent rapid accumulation of marine growthD.Provide a protective coating on heat exchanger surfaces10.In a turbocharger, inlet air velocity is in creased in the ____ .A.Inlet nozzle ring B・ Stationary diffuser passagesC・ Compressor outlet volute D. Rotating impeller vanes11 ・ Diesel engine cylinder air start valve timing is controlled by ___ ・A.Engine operating speed B・ An air manifoldC.A hydraulic distributorD. The air distributor12.If the compensating needle valve of a hydraulic governor is opened more than necessary the governor will ______ ・A.Have a larger than normal dead bandB.Produce excessive speed response to a load changeC.Respond slowly to any change in engine loadD・ Stabilize engine speed at the new governor setting13.A pyrometer is an instrument commonly used to measure ____ ・A.Cylinder pressureB. Flame intensityC. Exhaust gas temperatureD. Crankshaft axial alignment14.pump up the starting air reservoirs to their maximum pressure and _____ the air reservoirs and airA.OpenB. closeC. DrainD. Vent15.In reducing engine speed to an efficient propeller speed by the use of reduction gears, ____ .A.Speed and torque are both reducedB.Speed is reduced and torque remains unchangedC.Speed is reduced and torque is increasedD・ Speed is sometimes unchanged while torque is increased16.Which of the following statements concerning fire-tube boilers is correct?bustion gases flow through the tubesB. Flames impinge（撞击）on the tubeC. Combustion occurs in the tubesD. Water flows through the tubes17.The safety valves should be tested and adjusted when the boiler survey is ____ ・A. CompletedB. Carried outC. CleanedD. SteamedWhen an auxiliary boiler is panting and emitting black smoke, you should______ ・A. Increase the fuel oil supply pressureB. Decrease the fuel oilC. Decrease the fuel oil supply pressure D・ Inciease the air supply19.If the feed pump for an auxiliary boiler fails to deliver the feed water to the boiler, the cause may be ______ .A.High steam pressure in the boilerB.Abnormally high feed-water temperatureC.Abnormally high boiler water temperatureD・ Steam demand exceeding feed pump capacity20.A vane pump belongs to _____ according to its working principle.A. Reciprocating pumpB. Positive displacement pumpC. Centrifugal pump D・ centripetal pump21.The packing installed in the pump stuffing box is lubricated by _____ ・A. Gravity and feed oil cupsB. Grease cupsC. Hand during installationD. Leakage through the stuffing box22.If the capacity of a centrifugal pump decreases gradually over a long period of time, youshould _____ •A. Packing glandB. Mechanical sealsC. Lantern rings D・ Wearing rings23.Which of the listed conditions can lead to cavitation in a centrifugal pump?A.Vapor pockets formed in the suction flow steamB.Rough casing volute surfaces.C.Worn wearing ringsD.Heavy fluid m the flow stream24.In a compression refrigeration plant, the hot, high pressure refrigerant gas is cooled by the sea water and becomes liquid in the ____ ・A. Compressor B・ Condenser C・ Throttle valve D. Evaproator25.The temperature at winch water vapor in the atmosphere begins to condense is called theA. Dew point temperatureB. Condensation temperatureC. Psychometric temperatureD. Absolute humidity temperature26.In an air conditioning system, moisture is removed from the air by ___ ・A. Filters B・ Separator C. Ducted traps D・ Dehumidifiers27.Sludge may form in the crankcase of an air conditioning compressor as a result of _____ ・A. Bubbling refrigerantB. Lowered operating temperaturesC. Overheating and oxidationD. Reducing the cloud or floe point2& Coalescence is the breakdown of surface tension between oil droplets in an oil/ water mixture. Which causes them to join and ___ in size.A. ExpandB. Extract C・ Increase D. Decrease29.when started, a complete oily water separating unit is first filled ____ .the oily water mixture is ____ then pumped through the inlet pipe into the coarse separating compartment.A. With dirty waterB. With clean waterC. By oily water D・ By mixed water30.Which is the pollution prevention equipment?A. Booster pump B・ Evaporator C・ Incinerator D. Cooler31.The __ is used to bum oil sludgeA. ClarifierB. Oily water separator C・ Incincrator D. Distiller32.In sewage treatment, the term maceration' refers to the process of _______ .A. Breaking up solid matter into fine particlesB・ Precipitating non-decomposed waste in a collection tankC.Chemically adjusting the sewage pH to 7.0D.Eliminating bacterium coil from the sewage33.Which of the substances listed is satisfactorily removed from the fuel by a centrifugal oil purifier?A. Carbon particlesB. Lube oilC. GasolineD. Diesel fuel34.If the bowl of a disk type centrifugal purifier when operated as a separator is not primed, theA.Oil has a tendency to emulsify in the bowlB.purifier will act as a clarifier at the discharge ringC.Oil will be lost through the water discharge portsD・ Oil solids will be deposited only at the intermediate top disk35.The process of boiling seawater in order to separate it into freshwater vapor and brine is usually defined as _________ •A. Dehydration B・ Condensation C・ Evaporation D. Dissolution36.What type of valve is used to direct the flow of hydraulic is controlled by varying the position of the _____A. Relief valveB. Direction control valveC. Stop valve D・ Pressure control valve37.The delivery rate of a variable stroke axial piston hydraulic pump is controlled by varying the position of the ____ .A. Slide blockB. Tilting boxC. PintleD. Reaction ring3& The drive motor will have a brake arranged to fail-safe,i.e.it wild 〜the load if power fail or________ machine is stopped・A. LiftB. PutC. TakeD. Hold39.On tank vessels with an electrically-driven capstan, the motor should be meggered periodically to test _______ .A.Insulalion resistanceB. Eddy currentsB.C・ Capacitance D・ Armature reactance40.Overheating of a hydraulic system may be a result of _______ ・A.Changing pump discharge pressure in response to normal load variationsB.A high oil levelC.Incorrect fluid viscosityD.Continued slow re-circulation of the oil41.Purging air from a hydraulic system is necessary when ______ ・A.Adding small amounts of oil to the systemB.The system has been overheatedC.The system has been drained and then filled with new oilD.The system has been idle for a long period of time42.A direct current passing through a wire coiled around a soft iron core is the description of a simple ______ ■A. Magnetic shieldB. ElectromagnetC.Piezoelectric device D・ Electromagnetic domain43.The operation of ____ two alternators requires the voltages to be equal and also in phase.A. Paralleling B・ Series-mounting C. Running D. Controlling44.The power factor of an AC generator operating singularly is determined by the _________ ・A.Connected loadB. Prime mover speedB.C. Field excitation D. Generators rated voltage45.A generator is prevented from becoming motorized by the used of a/an ____ ・A.Over-speed tripB. Reverse power relayB.C・ Back pressure trip D. Governor controls46.After a ship enters service it is ____ for the main bus-bar to be made dead・A. UsuallyB. Commonly C・ Exceptional D. Unavoidably47.A transformer in an electric circuit serves to ____ ・A. Generate its own electrical powerB・ Transform electrical energy into mechanical engergyC・ Increase or decrease circuit voltage as requiredD.Convert AC or DC.4& The separate supplies are connected in either star or delta formation. The star formation is most commonly used and requires _________ slip-rings on the alternator.A. TwoB. ThreeC. FourD. Five49.Most conducting materials such as copper, aluminium, iron,nickel,and tungsten（名乌）□A. Increase in resistance with increased temperatureB・ Increase in resistance with decreased temperatureC・ Decrease in resistance with increased temperatureD.Contactors are made from silver and relays are made from copper.50.Which of the following statements represents the main difference between a relay and a contactor?A.Contactors control current and relays control voltageB.Relay is series connected and a contactor is parallel connectedC.Contactors can handle heavier loads than relaysD.Contactors are made from silver and relays are made from copper51.The energy consumed by an AC motor, as strictly reactive power.is______ ・A. Used to do mechanical workB. Used to establish the magnetic field of the motorC.Low operating temperatureD. The time period since the last cleaning52.The need for insulation cleaning may be determined by _______ ・A. Visual inspection for dirt accumulationB. High megger readingsC.Low operating temperatureD. The time period since the last cleaning53.Before starting the engine, the air bottle should be _______ •A. Pumped upB. LoadedC. DischargedD. Closed54.At the beginning of the watch the current operational parameters and the condition of all machinery should be verified and also the log readings should correspond with those ______ ・A. Noted by the bridge officer B. Told by last duty engineerC. Observed D・ In the instruction manual55.^movement of engine no longer required "means”____ nA.stop engineB. No engine revolutionsC. Stand-by engineD. Finished with engine56.Which of the listed conditions can be considered as the stogie geratest cause of accidents?A. Speed engineB. Excessive knowledge or skillC. Human errorD. Excitement57.A class ' C ' fire would occur in _______ .A. Bedding B・ Pipe insulation C. Paint D. A generator5& If a fire occurs in the boiler room as a result of a leaking fuel line, you should FIRST ____ .A.Notify. The engineer on watchB.Isolate and secure the pipingC.Throw sand on the fireD.Extinguish the fire using a combination nozzle with applicator59.At the earliest indication of fire aboard your vessel, you must FIRST _____ ・A. Locate the fireB. Determine which type of fire is burningC. Sound the alarmD. Fight the fire60.If there has been a fire in a closed unventilated compartment it may be unsafe to enter because of _______ .A. Unburned carbon particlesC ・ Lack of oxygen61. If you observe any situationwhich presents a safety or pollution hazard during fuel transfer operations, which of the following actions should be taken FIRST?A. Close the calves at the transfer manifoldB ・ Notify the person in charge of the shore facilityC ・ Stop the transfer operationD. Sound the fire alarm62. Before replacing a piston you should check the rings to see that all clearances and gaps are within the permissible ________ .A. Deflection B ・ Discrepancy C ・ Error D. Tolerance63. ____ is an opening for supplying seawater to condensers,pumps,etc.located in the hull below the waterline and having means for the attachment of the associated piping.A. Sea chestB. ScupperC. ScuttleD. Sea port64. The additional mark ______ in the classification certificate for machinery means propulsion apparatus is remotely control station is unmanned periodically ・A. BRCB. MCCC. AUT-0D. AUT-165. The international oil pollution prevention certificate is valid for a period of ______ ・A. One year from the date of issueB. Five years from the date of issueC. Three years from th date of issue D ・ Four years from the date of issue66. Which one is the 'clear ground ，for a more detailed inspection?A. Paint peeling off the uptakeB. No operation procedures for the oil separatorC. One of ship's certificates requiredD. Damaged sanitary pump67. The port of ships control officer may witness a fire drill carried out by the crew assigned to these duties on the ________ .A. Navigation log bookB. Engine room log boot 〜C. Oil record bookD. Muster list6& The _____ convention is the first to establish basic requirements on training,certification and watch-keeping for seafarers on an international level.A. STCW78B. STCW95C. SOLAS74D. SOLAS8869. When the machine spaces are in the periodic unmanned condition, ______________ shall be immediately available and on call to attend the machine space ・A. The chief engineerB ・ The designated engineer from shipyardC. The designated duty officer in charge of the engineering watchD. The designated surveyor from classification society70. The officer in charge of the engineering watch hall ensure that all machinery involved with the maneuvering of the ship can immediately be placed in the_______ of operation when notified that the ship is in congested waters ・A. Manual modeB. Automatic mode C ・ Remote mode D. Follow-up mode B. Excess nitrogen D. Excess hydrogen71 ・ Small oil spills on deck can be prevented from contaminating any waters by _____ .A・ Plugging all scuppers and drains B. Placing floating booms around the shipC. Regularly emptying all drip pans D・ Thoroughly draining all bunkering hoses72.When off loading garbage to another ship ,your records must identify that ship by name andA. Home portB. Operator's name of recordC- Official number D. Masters name73.The main objective of the SOLAS convention is to specify __________ for the construction, equipment and operation of ships, compatible their safety・A. At most referencesB. At least referencesC. Maximum standardD. Minimum standards74.The objectives of the ISM code are to ensure _______ •①safety at sea ©prevention of human injury or loss of life ③avoidanee of damage to the marine environment and to propertyA.①B.①②C.②③D.①②③二、关联题(关联题题干下有四个小题，每个小题四个选项)The main starting valve(automatic valve) is operated by a pneumatic actuator, and similar actuator controls are fitted for slow turning and to the timing valves. The main starting valve can be locked shut and this must be done before the engine mining gear is engaged. When this valve is open, air passes through a non-return valve and flame arrester to the main manifold supplying pressure to the cylinder valves.one of which is fitted to each cylinder of the engine・The cylinder air start valves are normally held closed by a compression spring together with cylinder pressure acting over the calve lid.air from the manifold enters these valves where it forms a pressure balance between the underside of the valve lid and a balance piston of equal area on the vale spindle. Consequently this does not cause the valve to open.cylinder valves are opened when operating air, transmitted from the distributor, applies pressure to the larger operating piston on the valve spindle. As the valve is force open , starting air from the manifold enters the cylinder, applying pressure on the piston and causing the engine to rotate in the corresponding direction. To close the cylinder calves the connection from the distributor is opened to atmosphere, allowing the spring to close the valve and return the operating piston.75.The timing valves(in the first paragraph) refer to ____ .A. The valves for slow runningB. Fuel valvesC. The distributorD. Not mentioned76.After the main starting valve opens, air will not supply to ________ .A. The flame arrester B・ Each cylinder valveC.Anon- return valveD. A pneumatic actuator77.The balance piston used on a cylinder air start valve is to ________ ・A.In crease acting areaB.Keep pressure balance and help the valve close before operating air appliedC・ Increase the force and help the valve open after the operating air appliedD.Cause the valve to open7& After the engine being started, the air in the distributor will ____ .A. Be vented to open airB・ Be leaded to the corresponding cylinderC・ Be trapped until engine stopsD.Return to air reservoir三、中译英(共2题，请将答案写在答题纸上)79.1号重油分油机手动排渣后发生剧烈振动，经拆检清洗后装复，恢复正常分油工作。

三管轮机英语41-48期经整理

三管轮机英语41-48期经整理中华人民共和国海事局2006年第3期海船船员适任证书全国统考试题(总第41期) 科目：轮机英语试卷代号：805 适用对象：无限、近洋航区3000KW及以上船舶二/三管轮（本试卷卷面总分100分，及格分为70分，考试时间为100分钟）答题说明：请选择一个最合适的答案，并将该答案按答题卡要求，在其相应位置上用2B铅笔涂黑。

第1题至74题，每题1分，第75题至78题，每题1.5分,第79题至80题, 每题10分。

一、单项选择题1.An exhaust gas bypass is installed on a waste heat boiler in order to ______.A. bypass exhaust gas at high loads to prevent excessive back pressureB. bypass a portion of the exhaust gas at peak loads for better efficiencyC. recycle exhaust gas to the turbochargerD. minimize moisture condensation in the boiler gas passages at low loads2.Flame failure in an automatically fired auxiliary boiler can mostly result from a/an ______.A. incorrect electrode settingB. incorrect nozzle positionC. clogged fuel nozzleD. broken high tension lead3.Which of the following modes of heat transfer does NOT require any physical contact between a warmer and a cooler substance?A. RadiationB. ConductionC. Natural convectionD.Contact directly4.In a chilled water air conditioning unit using a reciprocating compressor, therefrigerating effect of the primary refrigerant can be increased by ______.A. increasing refrigerant pressure in the coilB. increasing chilled water flow through the coolerC. sub-cooling the refrigerant in the condenserD. superheating the refrigerant in the compressor5.In a general cargo crane, ______is fitted to lift the cargo load.A. the slewing motorB. the luffing motorC. the hoisting motorD. the fan moter二. 关联题（关联题题干下有4个小题，每小题4个选项）With many small package boilers, the automatic control sequence usually ensures that the boiler fire is initially ignited from a diesel oil supply, and changed over to the usual source when ignition is completed. With good management, to facilitate subsequent starting from cold, the fuel system of large boilers will have been flushed through with diesel oil when the boiler was on light duty immediately prior to being secured. When burning such diesel fuel it is essential for safety that only the correct (small) burner tip should be used. It should be kept in mind that if fire does not light, immediately shut off fuel and vent furnace.Complete ignition of fuel in the furnace is essential. The burner flame, the smoke indicator and the funnel should befrequently observed. With satisfactory combustion, the flame should appear in candescent （白热的）with an orange shade at the flame tip, and a faint brownish haze should show at the funnel. If on first ignition the flame is uncertain, badly shaped and separates from the primary swirler, momentary opening or closing of air register may correct.75. Small package boilers will use ____C___ while being lit up.A. the usual source of oilB. fuel oilC. diesel oilD. mixture of fuel oil and diesel oil76. After large boilers being secured, the fuel in the feeding line will be__C__.A. the usual source of oilB. fuel oilC. diesel oilD. mixture of fuel oil and diesel oil77. If large boilers were not lit up, __B___.A. feed water to normal levelB. stop fuel supply immediately and purge the furnaceC. light the boiler againD. reset the burner78. An indication for a good combustion is ___C___.A. white smokeB. brown haze in the funnelC. orange flame tipD. swirl oil spray中华人民共和国海事局2007年第1期海船船员适任证书全国统考试题(总第42期)科目：轮机英语试卷代号：805适用对象：无限、近洋航区3000KW及以上船舶二/三管轮（本试卷卷面总分100分，及格分为70分，考试时间为100分钟）答题说明：请选择一个最合适的答案，并将该答案按答题卡要求，在其相应位置上用2B铅笔涂黑。

(完整word版)三管轮轮机英语听力与会话问答要点参考

青远张老轨整理提供！问答题:每题6分根据本人多年参加轮机英语评估口语部分的批改工作经验，以下问答题的重复率较高.要点：一定将题目听清楚后再回答问题,回答问题要简明清晰，发音正确。

正确操作录音系统，避免“无声”现象，造成无成绩。

另外朗读：吐字清晰，语速适中,将句子读完整，别读破句子，掌握好语调.文章前五句话最重要，一定读好，这样能给评估员一个良好的印象.口述：看清题目,围绕主题叙述，尽量多说与主题相关的话语,千万别跑题。

一般情况下朗读得分:13~15分差生得分一般在10分以下口述得分:13~15分差生得分一般在10分以下问答得分：应在35分以上。

1。

how long have you worked on board？I have worked on board for 10 years.2. what is your marital status？how many departments are there on board？I am married. There are three departments on board.3. how many people are there in your family？ Are you married？There are there people in my family。

Yes，I am married.4.how many countries have you ever been to?I have been to seven countries。

5. how many importment canals are there all over the world？Three 。

the pamama ，suez and kiel。

6.can you tell me what is the most important thing for a seafarer。

轮机42期考题

中华人民共和国海事局2007年第1期海船船员适任证书全国统考试题(总第42期)科目：轮机英语试卷代号：804适用对象：近洋航区750—3000KW船舶大管轮（本试卷卷面总分100分，及格分为70分，考试时间为100分钟）答题说明：请选择一个最合适的答案，并将该答案按答题卡要求，在其相应位置上用2B铅笔涂黑。

第1题至68题，每题1分，第69题至76题，每题1.5分,第77题至78题,每题10分。

一、单项选择题：1.The diesel engine is similar to the gasoline engine in that______.A. both of them are ignited by compressed airB. both of them are the forms of external combustion enginesC. both of them have spark plugsD. the power is developed by the piston in the cylinder2.Fuel is admitted to a diesel engine cylinder through the ______.A. injector nozzlesB. carburetorC. exhaust portsD. intake valves3.The cetane number of a diesel fuel oil indicates its ______.A. viscosityB. acid contentC. heating valueD. ignition quality4.Constant cooling the various components of diesel engine has a number of functions except for______.A. good lubricationB. low thermal stressC. good mechanical propertiesD. acid corrosion5.Loss of lubricating oil pressure to the main propulsion diesel engine will actuate a/an ______.A. over-speed tripB. audible/visual alarmC. the ships/boats general alarmD. reserve oil storage tank6.Maintaining the lowest possible scavenging air temperature at all times is not recommended due tothe possibility of the ______.A. air charge density becoming too highB. piston crown surfaces becoming too coldC. formation of excessive quantities of condensateD. compression pressure being greatly reduced7.Among the rings of a piston the ______one is subjected to the greatest load and temperature.A. bottomB. middleC. topD. any position8.Adjust ______by means of lead wire.A. the clearance of the main bearingB. the diameter of main bearingC. the gap of main bearingD. the tolerance of main bearing9.One cylinder of a diesel engine is persistently knocking and does not cease(停止) when the fuelsupply to that cylinder is secured. Which of the following problems may be the cause?A. Low loading of the cylinderB. Excessive cooling of that pistonC. Sluggish ring action on the pistonD. A mechanical defect in a working part10.In a diesel engine, late fuel injection is indicated by black or gray exhaust smoke with ______.A. low firing pressureB. low exhaust temperatureC. mechanical knock in each cylinderD. fuel knock in each cylinder 11.In the event of the cylinder starting valve leakage ______would pass into the air pipes and ignitethe oil deposited.A. cooling waterB. vapor from the boilerC. starting airD. hot gases12.Wear occurring at the tips of the reduction gear teeth is usually the result of ______.A. surface fatigueB. fretting corrosionC. heavy overloadingD. gear misalignment13.High diesel engine cooling water temperatures can be caused by ______.A. air in the cooling systemB. an overhauled water pumpC. correct amount of coolantD. no air in the cooling system14.Because of the high loads the bearing material is a tin-aluminum(锡-铝) alloy bonded to a steelshell. The crosshead pin is highly polished to a______.A. flat surfaceB. mirror finishC. sloping(倾斜的) surfaceD. inclined(倾向的) surface15.Prolonged operation of a diesel engine with a closed cooling water system, at lower than normaldesigned operating temperatures can ______.A. increase power outputB. decrease lube oil viscosityC. eliminate fuel knockD. cause sulfuric acid formation16.Propeller pitch speed minus ship speed divided by the propeller pitch speed is termed ______.A. apparent slipB. true slipC. pitchD. propulsive efficiency17.A magnetic strainer is used in the diesel engine reduction gear oil system to remove small particlesof ______.A．water B．babbitt C．acids D．iron or steel18.The heat gained per pound of refrigerant in the evaporator is known as the ______.A. latent heat of vaporizationB. sensible heatC. refrigerating effectD. specific heat of vaporization19.The sensing line for the low pressure cutout switch to a refrigeration system is located ______.A. in the chill box(冰箱)B. before the receiverC. on the suction side of the compressorD. on the discharge side of the compressor20.If liquid refrigerant accidentally comes in contact with the eyes, _____ immediately.A. rub the eyesB. irritate the eyesC. wash the eyes with a heavy boric acid solutionD. obtain medical help21.Sub-cooling is a method of reducing the temperature of the liquid refrigerant below its ______.A. freezing pointB. floc point(浊点)C. condensing temperatureD. compression temperature22.Badly leaking refrigeration compressor discharge valves will cause ______.A. overfeeding of the expansion valveB. damage to the condenserC. constant running of the compressorD. flooding of the receiver23.If the suction pressure for an operating refrigeration compressor is below normal, the cause maybe ______.A. an excess of liquid refrigerantB. the expansion valve overfeedingC. a fouled compressor suction strainerD. the compressor short cycling24.High-speed rotation in a centrifugal purifier can produce a force ______the force of gravity.A. many thousand times larger thanB. the same asC. many thousand times smaller thanD. which has nothing to do with25.An increase in the heat load to a refrigeration system will cause ______.A. the suction pressure to decreaseB. the suction temperature to increaseC. increased ice formation on the evaporator coilD. excessive short cycling of the compressor26.______ play a very important part in hydraulic systems by preventing interaction betweendifferent parts of the hydraulic circuit.A. MotorsB. Check valvesC. Safety valvesD. Reducing valves27.Leakage of hydraulic fluid from around the shaft of a hydraulic motor may be caused by ______.A. permanent loss of pump suctionB. worn shaft sealsC. high level in the oil sumpD. low motor RPM28.As the designated rudder angle is being achieved, as a result of the original command input, thesteering gear follow-up mechanism is ______.A. in motion, providing a null inputB. not in motion, thus providing a null inputC. in motion, providing an input to place the main pump on maximum strokeD. in motion, providing an input to place the main pump at null stroke29.Hydraulic machinery failures are commonly caused by contamination of the hydraulic fluid and______.A. fluid frictionB. fluid turbulenceC. component misalignmentD. pressure surges30.Which of the following problems may be encountered by using an oil having a viscosity higherthan that specified for an operating hydraulic system?A. External seal leakage.B. Hunting due to fast response.C. Hydraulic oil film breakdown.D. Increased power consumption.31.Which of the following can be used in hydraulic transmission system?A. Hydraulic oilB. Animal oilC. Light oilD. Fuel oil32.The output voltage of a 440 volt, 60 hertz, AC generator is controlled by the ______.A. prime mover speedB. exciter output voltageC. load on the alternatorD. number of poles33.The field coils ______ and the armature(电枢) ______. This is in fact the arrangement adopted forlarge, heavy duty alternators.A. are stationary(固定的)/rotatesB. are stationary/is stationaryC. rotate/ is stationaryD. rotate/rotate34.While paralleling two AC generators using synchronizing lamps only, both lamps will go darkwhen the generators are______.A. running at the same speedB. groundedC. of the same polarityD. in phase35.Equal power factors on paralleled AC generators are maintained by an automatic______.A. voltage regulatorB. reverse power relayC. reverse current relayD. governor control switch36.A generator is prevented from becoming motorized by the use of a/an ______.A. over-speed tripB. reverse power relayC. back pressure tripD. governor controls 37.The part of the shipboard electrical system used to control the distribution of power to the branchcircuits, is the ______.A. bridge control panelB. disconnect linksC. governor relay boxD. main switchboard38.The ratio of output response to a specified change in the input is known as ______.A. primary feedbackB. sensitivityC. deviationD. dead band39.Bourdon Tube is probably the most commonly used______ measuring instrument.A. the absolute pressureB. the gauge pressureC. the vacuum pressureD. the differential pressure40.Restrictions occurring in the small orifices(孔) of pneumatic control system components can becaused by ______.A. moisture in the compressed air supplyB. excessive dryness in the compressed air supplyC. pressure surging in the compressed air receiverD. insufficient lubrication of the system components41.Before putting on the starting air, the reversing and control gear should be _____.A. operatedB. stoppedC. checkedD. removed42.With UMS, when the engine room is unwatched, ______will control the main engine.A. the bridge officer on watchB. the chief engineerC. the duty engineerD. the duty motorman43.Prior to starting most medium-speed propulsion diesel engines, which of the procedures listedshould be observed?A. The expansion tank should be topped off.B. The thermostatic water regulating valves should be manually opened.C. The fuel filters should be changed.D. The engine should be turned over slowly with the indicator cocks open.44.“Movement of engine no longer required.” means “______”.A. Stop EngineB. No Engine RevolutionsC. Stand-by EngineD. Finished With Engine45.A tank has been sealed and unventilated(不通风的) for a long period of time. Which of thefollowing conditions does this indicate?A. The tank is safe to enter.B. The tank is especially dangerous to enter.C. Carbon monoxide(一氧化物) is present.D. Water vapor present when the tank was sealed has oxidized(使氧化).46.A fire in a pile of canvas would be classified as a ______.A. class AB. class BC. class CD. class D47.Fires resulting from spontaneous(自发的) combustion are usually caused by the improper disposalof______.A. cigarette butts(烟头)B. oily ragsC. burner torchesD. lighted matches48.CO2 extinguishes a fire by __________.A. a blanket of bubbles formed on the surface of the fireB. smotheringC. coolingD. isolating the heat from the fuel49.At the earliest indication of fire aboard your vessel, you must FIRST ______.A. locate the fireB. determine which type of fire is burningC. sound the alarmD. fight the fire50.The necessity for administering artificial(人工的) respiration may be recognized by the victim's______.A. vomiting(呕吐)B. blue color and lack of breathingC. irregular breathingD. unconscious(无意识的) condition51.The flash point of a petroleum product is an indication of its ______.A. viscosityB. pour pointC. volatilityD. lower explosive limit52.Before replacing a piston you should check that all rings are ___.A. freeB. fastenedC. brokenD. stuck53.The tool used in precision(精确) work to smooth or enlarge a slightly undersized(不够大的) hole,is called a ______.A. round outB. round fileC. reamer(铰床)D. hole driller54.Preventive maintenance______.A. should not be carried out during the watchesB. can only be carried out in portC. is a kind of maintenances carried out prior to the occurrenceD. is a kind of maintenances carried out after the occurrence55.The depth of the ship below the waterline measured vertically to the lowest part of the hull iscalled_____.A. trimB. leanC. draftD. tonnage56.The additional mark ______in the Classification Certificate for Machinery represents thatpersonnel are watching at engine assembly control station and monitoring all machinery and electronic devices.A. BRCB. MCCC. AUT-0D. AUT-157.Which of the following is NOT on the list items to be recorded in Oil Record Book Part I(machinery space operation)?A. accidental discharge of oilB. disposal of oil residuesC. quantity of water produced by F.W.GD. discharge of dirty ballast or cleaning water from fuel oil tanks58.The International Oil Pollution Prevention Certificate required by MARPOL is issued to Chineseflag by the _______.A. IMOB. CCSC. USCGD. PICC59.Enhanced procedures concerning the exercise of ______have been developed to allowintervention（干涉） in the case of deficiencies deemed to pose a danger to persons, property or the environment.A. port state controlB. flag state controlC. fire and boat drillD. safety inspection60.The fire drill must, as far as practicable, be conducted as if ______.A. there is a minor emergencyB. there is an actual emergencyC. there were a minor emergencyD. there were an actual emergency 61.STCW shall apply to seafarers ______on board seagoing ships entitled to fly the flag of a Party.A. servedB. servingC. surveyedD. surveying62.The engineer ______ the watch to the relieving officer if there is reason to believe that the latter isobviously not capable of carrying out the watch-keeping duties effectively.A. shall take overB. shall not take overC. shall hand overD. shall not hand over63.The officer in charge of the engineering watch shall ensure that all machinery involved with themaneuvering of the ship can immediately be placed in the ______of operation when notified that the ship is in congested（拥挤的） waters.A. manual modeB. automatic modeC. remote modeD. follow-up mode64.The term "moderate speed" was previously interpreted（解释） as meaning a speed which wouldenable a vessel ______within half the range of visibility.A. stoppingB. being stoppedC. to stopD. to be stopped65.Waste oil from the lube oil sumps of machinery may NOT be ______.A. drained into the vessel's bilgesB. reclaimed（回收的） for other usesC. held in a slop tankD. purified and then reused66.The SOLAS Convention in its successive forms is generally regarded as the most important of allinternational treaties concerning the ______ of merchant ships.A. pollutionB. economizationC. safetyD. efficiency67.The Company should ensure that the master is fully ______with the Company's SMS.A. familiarB. understandC. conversationD. confused68.Each ship shall carry on board a ship security plan approved by_____.A. the chief engineer officerB. the master of the shipC. the manager of the companyD. the Administration二、关联题（关联题题干下有4个小题，每小题4个选项）第一组:Port State Control (PSC) is the inspection of foreign ships in national ports for the purpose of verifying that the condition of the ship and its equipment comply with the requirements of international conventions and that the ship is manned and operated in compliance with applicable international laws. The primary responsibility for ensuring that a ship maintains a standard at least equivalent to that specified in international conventions rests with the flag State and if all flag States performed their duties satisfactorily there would be no need for port State control. Unfortunately this is not the case as evidenced by the many marine accidents around the world - hence the need for additional control.The authority for exercising PSC is the national law based on relevant conventions. It is therefore necessary for a port State to be Party to those conventions and to have promulgated the necessary legislation before exercising PSC. In accordance with the provisions of the applicable conventions, Parties may conduct inspections of foreign ships in their ports through Port State Control Officers (PSCOs).69.The purpose of PSC is ______.① to check and inspect foreign ships② to verify the condition of a ship in compliance with requirements of international conventions;③ to make sure that the ship is manned and operated well;④to detain shipsA.①②B.②③C.①③D.①②③④70.Who will be responsible for ensuring that a ship maintains a standard at least equivalent to thatspecified in international conventions?A. PSCOsB. Ship ownersC. Flag statesD. Port states71. Before exercising PSC, a port state should______.A. become a contracting Party and promulgate regulations for implementing PSCB. inform ship ownersC. establish proceduresD. inform shipping companies72.PSC inspection is implemented by______ through______.A. flag states/PSCOsB. flag states/ship ownersC. port states/PSCOsD. port states/ship owners第二组:The field current supply in older machines comes from a lower voltage direct current generator or exciter on the same shaft as the alternator. Modern machines however are either statically excited or of the high-speed brush-less type. The exciter is required to operate to counter the effects of power factor for a given load. The power factor is a measure of the phase difference between voltage and current and is expressed as the cosine of the phase angle. With a purely resistance load the voltage and the current are in phase, giving a power factor of one. The power consumed is therefore the product of voltage and current. Inductive or capacitive loads, combined with resistance loads, produce lagging or leading power factors which have a value less than one. The power consumed is therefore the product of current, voltage and power factor. The alternating current generator supplying a load has a voltage drop resulting from the load. When the load has a lagging power factor this voltage drop is considerable. Therefore the exciter, in maintaining the alternator voltage, must vary with load current and also the power factor. The speed change of the prime mover must also be taken into account.73.The word “machines” in the passage refers to _____.A. the direct current generatorB. the alternating current generatorC. the exciterD. the prime mover74.Which of the following statements is true according to the passage ?A. With a purely resistance load, the power factor is zero.B. Inductive loads combined with resistance loads produces leading power factors.C. Capacitive loads combined with resistance loads produces lagging power factors.D. With a purely resistance load, the phase angle is zero.75.When the load has a lagging power factor this voltage drop is considerable. This sentence meansthat _____.A. with a purely resistance load, the voltage drops too muchB. there is a considerable voltage drop in the capacitive load combined with resistance loadC. when the load is the capacitive load combined with resistance load, the voltage drops to zeroD. when the load is the inductive load combined with resistance load, the voltage drop is fairlylarge76.The exciter must vary with:① load current② the power factor,③ speed change of the prime mover.A.①B.②C.①②D.①②③三、中译英（共2题，请将答案写在答题纸上）77.主机以83转/分钟正常航行时，增压器的转速为11700转/分钟，上午10时增压器突然开始产生异常声音，出现振动，主机转速降至60转/分钟, 同时增压器转速降至2400转/分钟。

轮机员英语面试(轮机长、大管轮、二管轮、三管轮适用)

轮机员英语面试（轮机长、大管轮、二管轮、三管轮适用）1、Can you measure oil level? Which method is right, to measure ullage height or to measure oil depth?Both will do. In practice, to measure ullage height is more specific than to measure oil depth. To measure ullage height, we should know the standard height of oil tank. In common practice, we usually measure the oil depth.2、Could you tell the working parts of a gas welding gun?Yes, sir. The working parts include nozzle, oxygen valve, acetylene valve, oxygen supply, acetylene supply. In addition, filler rod is used to fill in welded joint when it melts.注：焊枪是轮机部常用的维修工具，工作时这些部件名称经常涉及到。

3、How to pump out bilge water in the engine room?Pump bilge water into sludge tank. Then pump bilge water into oily water separator. Enquire master or deck officers on duty to pump out at appropriate water. The proportion should not beyond 15 PPM.机舱排污水程序可表述为把污水排到污水集中柜内，再通过油水分离器在允许排放区域按含油量小于15 PPM排放。

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中华人民共和国海事局2007年第1期海船船员适任证书全国统考试题(总第42期)科目：轮机英语试卷代号：805适用对象：无限、近洋航区3000KW及以上船舶二/三管轮（本试卷卷面总分100分，及格分为70分，考试时间为100分钟）答题说明：请选择一个最合适的答案，并将该答案按答题卡要求，在其相应位置上用2B铅笔涂黑。

第1题至74题，每题1分，第75题至78题，每题1.5分,第79题至80题,每题10分。

一、单项选择题1.The ______engine is used for alternators and some times for main propulsion with a gearbox toprovide a propeller of between 90 to 120 rpm.A. four-strokeB. two-strokeC. slow speedD. reversible2.The discharge flow of a reciprocating pump is ______.A. steadyB. in pulsationC. continuousD. large3.The cetane number of a diesel fuel oil indicates its ______.A. viscosityB. acid contentC. heating valueD. ignition quality4.Always ensure that the turning gear is______, even at the quay, the wave from other ships mayturn the propeller and thus the engine.A. disengagedB. engagedC. assembledD. disassembled5.Camshafts are usually driven by timing gears or ______.A. push rodsB. chain drivesC. rocker armsD. flywheels6.The cylinder oil is pumped into the cylinder (via non-return valves) when the piston rings pass thelubricating orifices, during______.A. the upward strokeB. the downward strokeC. the power strokeD. the suction stroke7.The total starting air capacity required for reversible main engines is to be sufficient for a least______.A. six consecutive(连续的) startsB. eight consecutive startsC. ten consecutive startsD. twelve consecutive starts8. A dirty diesel engine oil filter element can best be detected by ______.A. visual inspection of the elementsB. the pressure drop across the filterC. high lube oil sump temperatureD. decrease in oil viscosity from the filter9.Before a marine diesel engine is started the cylinders and pistons must be ______.A. cooled to appropriate temperatureB. warmed up gradually to appropriate temperatureC. opened up and renewedD. ground and polished10. A controllable pitch propeller on a diesel driven vessel eliminates the need for ______.A. friction clutchesB. disconnect clutchesC. reversing gearsD. reduction gears11.The maximum pressure developed by a waste heat boiler is determined by the main engineexhaust ______.A. gas compositionB. gas temperatureC. pressureD. timing 12.______continuously extract the crankcase atmosphere, via a pipe system, and move it past asensitive and accurate opacity (不透明)measuring track.A. The oil mist detectorsB. The smoke detectorsC. An oily water monitorD. Oil discharge monitoring and controlling system13.The water in a steaming auxiliary boiler should be tested daily for ______.A. dissolved oxygenB. chloridesC. sludgeD. dissolved nitrogen14. A firebox explosion in an automatically fired auxiliary boiler may be the result of ______.A. excessive purging before lighting offB. insufficient trail for ignition periodC. a faulty transformer in the ignition circuitD. insufficient purging after lighting off15. A feed pump for an auxiliary boiler might lose suction if the ______.A. boiler water level is lowB. feed-water is too hotC. boiler steam demand is lowD. feed-water is too cold16.The gear and screw pumps are classified as______.A. variable stroke pumpsB. multistage pumpsC. positive displacement pumpsD. triple-ported pumps17.The pressure of a liquid leaving the pump can be referred to as the ______.A. total headB. discharge headC. net positive suction headD. suction head18.Which of the valves listed will be cycled from fully open to fully closed when the handle isturned 90 degree?A. A rising stem gate valveB. A globe stop valveC. A check valveD. A butterfly valve19. A pump shaft that is bent or distorted should normally be ______.A. repaired by a suitable welding processB. straightened by applying heat and torsionC. reconditioned by metallizing and machiningD. replaced with a satisfactory spare20. A centrifugal pump may fail to deliver water when first started if the ______.A. water seal pipe is pluggedB. pump is not primedC. seal ring is improperly locatedD. impeller is flooded21.Which of the following conditions must exist for heat to flow from one object to another?A. The two objects must be in physical contact.B. The two objects must be the same size.C. There must be an existing temperature differential.D. There must be an existing weight differential.22.The dew point of air is reached when the wet bulb temperature is ______.A. twice the dry bulb temperatureB. 10℃ above the dry bulb temperatureC. 5℃ above the dry bulb temperatureD. equal to the dry bulb temperature23.If air at 95 ℃ dry bulb temperature and 50% relative humidity is conditioned to 75 ℃ dry bulbtemperature and 50% relative humidity, it is an example of ______.A. cooling onlyB. cooling and humidifyingC. cooling and dehumidifyingD. adiabatic(绝热的) cooling24.In order to achieve greater dehumidification(除湿) with an air conditioning system, you should______. I. reduce the cooling coil temperature II. increase the re-heater temperatureA. I onlyB. II onlyC. Both I and IID. Neither I nor II25.Oily water separators are used to ensure that ships don't discharge oil when pumping out ______.A. ballast waterB. boiler waterC. bilge waterD. sewage water26.When started, a complete oily water separating unit is first filled______. The oily water mixtureis then pumped through the inlet pipe into the coarse separating compartment.A. with dirty waterB. with clean waterC. by oily waterD. by mixed water27.Which is the pollution prevention equipment?A. booster pumpB. evaporatorC. incineratorD. cooler28.The oil sludge is burnt in the ______onboard. I’ll show you the ashes.A. boilerB. main engineC. auxiliary engineD. incinerator29.Most marine biological sewage treatment plants consist of all the following statements except______.A. aeration tanksB. settling tanksC. disinfection agentD. anaerobic bacteria (厌氧菌)30.Great care is dedicated to the removal of _____ from the scavenge air.A. gravityB. viscosityC. densityD. humidity31.Dirty oil must be _____ before being used again.A. mixed with clean oilB. purifiedC. heatedD. strained32.When a vacuum boiling evaporator works, the hot jacket water will pass over the tube stack and___ the sea water passing through the tubes.A. disposeB. dissolveC. heatD. dissipates33.When securing a flash-type evaporator for an extended period of time, you should ______.A. fill the unit with saltwaterB. fill the unit with descaling compoundC. completely drain the unitD. tightly seal the unit to exclude air34.Among the basic categories of equipment, which of the following are used to allow the hydraulicenergy to be controlled?A. hydraulic pumpsB. valvesC. hydraulic cylindersD. hydraulic motors35.Positive displacement, helical gear(斜齿轮) pumps are well suited for pumping oil because______.A. stuffing boxes eliminate the leakage problems usually associated with other gear pumpsB. it is not necessary to closely maintain design clearances with this pumpC. they are essentially self-priming and produce a high suction liftD. these pumps are designed with extreme tooth angles36.The oil in a cargo winch gear box should be sampled periodically(周期性地) to ______.A. prevent the gear box from leakingB. prevent the oil from becoming inflammable(易燃的)C. make sure it has not become contaminated(污染)D. make sure the motor bearings are lubricated37.If an anchor windlass has been idle for some time, you should ______.A. repack all valve stemsB. lubricate it prior to useC. replace the foundation boltsD. balance the warping heads 38. A mooring winch should be equipped with mechanical brakes capable of holding ______.A. half the breaking strength of the mooring lineB. the full breaking strength of the mooring lineC. the maximum expected tension(张力) of the mooring lineD. 50% over the working tension of the mooring line39.Hydraulic cranes must be properly warmed-up before being operated because ______.A. warm-up allows the hydraulic system to become charged with oilB. warm-up allows the relief valves to be properly testedC. hydraulic strainers operate only during the warm-up periodD. hydraulic fluid must be at the proper viscosity40.The current flowing first in one direction and then in another is called ____ current.A. a rushB. an alternatingC. a directD. an exciting41.The frequency of an alternator at a given RPM is determined by the ______.A. number of turns of wire in the armature coilB. number of magnetic polesC. strength of the magnets usedD. output voltage42.While paralleling two AC generators using synchronizing(同步的) lamps only, both lamps willgo dark when the generators are ______.A. running at the same speedB. groundedC. of the same polarity(极性)D. in phase43.The load sharing characteristics of two diesel generators operating in parallel are mostlydependent on their governor ______.A. load limit settingsB. idle speed settingsC. speed limit settingsD. speed droop settings44.Electric insulation is made of organic substances and so gradually ______with age.A. deterioratesB. increasesC. are fouledD. becomes better45.The main generators are connected to ______.A. distribution boardsB. section boardsC. emergency switch boardsD. main switch boards46.The operation of _____ two alternators requires the voltages to be equal and also in phase.A. controlB. series-mountingC. runningD. paralleling47.______is a machine by which electrical energy is transformed into mechanical energy.A. An alternatorB. An electric motorC. A diesel engineD. A main switchboard48. A ground in an electrical circuit outside the engine room ______.A. cannot be detected under normal conditionsB. is of no consequence to engineering personnelC. is indicated at the branch circuit breaker panelD. is indicated by the ground detecting lamps on the main switchboard49.Time delayed or delayed action-type fuses are designed to ______.A. prevent grounds in branch circuitsB. prevent opens in motor circuitsC. permit momentary overloads without meltingD. guard lighting and electronic circuits50.When voltage and current developed in an AC circuit reach their peak values at the same time,the power factor is ______.A. laggingB. leadingC. maximumD. minimum51.When there is a fire in a large electric motor, normally the very FIRST step is to ______.A. secure the electric supplyB. ventilate area to remove smokeC. start the fire pump and lead out hoseD. apply foam52.Before “stand by” is rung on the engine telegraph, it is usual to give the main diesel engine a brieftrial ______ahead and astern.A. with powerB. on powerC. with airD. on air53.Bridge orders must be ______and a record of any required changes in speed and direction shouldbe kept.A. slowly carried awayB. carried out with a period of delayC. promptly carried outD. paid by the captain54.After the order ' ______' is given, the air system is shut down, the turning gear put in.A. Finished With EngineB. Stop The EngineC. Stand-by EngineD. Slow-down Engine55. A tank has been sealed and unventilated(不通风的) for a long period of time. Which of thefollowing conditions does this indicate?A. The tank is safe to enter.B. The tank is especially dangerous to enter.C. Carbon monoxide(一氧化碳) is present.D. Water vapor present when the tank was sealed has oxidized(使氧化).56.Fires involving combustible metals are classified as ______.A. class 'A' firesB. class 'B' firesC. class 'C' firesD. class 'D' fires57.The three basic components of a fire are chain reaction, heat, fuel, and ______.A. carbon monoxideB. oxygenC. carbon dioxideD. any gaseous substance58.CO2 extinguishes a fire by __________.A. a blanket of bubbles formed on the surface of the fireB. smotheringC. isolating the heat from the fuelD. cooling59.Seawater may be used for drinking water ______.A. at a maximum rate of two ounces(盎司) per dayB. after mixing with an equal quantity of fresh waterC. if gather during or immediately after a hard rainD. under no circumstance60.Obviously, for a given fuel oil, its pour point is ______its cloud point.A. lower thanB. higher thanC. as same asD. better than61.Now that the valve is not worth ______, I suggest it ______.A. to repair/renewingB. repairing/renewingC. to repair/ be renewedD. repairing/be renewed 62.When a vessel is in dry-dock, the vessel's engineers should ______.A. examine the condition of the propellerB. chip and paint all hull protection zincsC. install new docking plugs in all cofferdamsD. inspect the hull for hogging or sagging63.The additional mark ______in the Classification Certificate for Machinery represents thepropulsion apparatus is remotely controlled on the navigating bridge control station, and engine room is watched by duty personnel.A. BRCB. MCCC. AUT-0D. AUT-164.Oil Record Book Part I shall be provided to ______.A. every oil tankerB. every ship of 400 tons gross tonnage and aboveC. every shipD. any ship65.“Inability to provide for the first watch at the commencement of a voyage and for subsequentrelieving watches persons who are sufficiently rested and otherwise fit for duty.” is considered to be one of the detainable deficiencies(缺乏) under ______.A. the SOLAS ConventionB. the MARPOL ConventionC. the STCW ConventionD. the LOAD LINE Convention66.The Port State Control officer may witness a fire drill carried out by the crew assigned to theseduties on the ______.A. Navigation Log BookB. Engine Room Log BookC. Oil Record BookD. Muster List67.When deciding the composition of the engineering watch, which may include _____appropriately,many factors shall be taken into account.A. satisfied engineersB. qualified ratingsC. satisfied chief engineerD. qualified chief engineer68.During an engine room watch if immediate action is necessary to ensure safety of the ship, itsmachinery and crew, ______.A. the chief engineer must be informed at firstB. the captain must be informed at firstC. it must be taken by the duty engineerD. the generator engine must be stopped69.One of the methods NOT usually allowed in cleaning up oil spills in the United States is ______.A. skimmersB. strawC. dispersantsD. sawdust70.According to the international regulations concerning the prevention of pollution of sea areasfrom ships, the disposal into the sea of all plastics is ______.A. welcomeB. admitted in some special sea areasC. prohibitedD. acceptable71.In cleaning up an oil spill, the use of chemical agents would ______.A. absorb the oil for easy removalB. remove the oil from the waterC. disperse(分散) or dissolve the oil in the waterD. not affect the oil72.The main objective of the SOLAS Convention is to specify ______for the construction,equipment and operation of ships, compatible their safety.A. at most referencesB. at least referencesC. maximum standardsD. minimum standards73.These acid residues must be prevented from entering the crankcase, otherwise the lube oil wouldbe _______ .A. optimizedB. emulsifiedC. contaminatedD. oxidated74.The ship security officer shall have knowledge and have received training, taking into account theguidance given in Part B of______.A. the ISM CodeB. the ISPS CodeC. the IBC CodeD. the IGC Code二、关联题（关联题题干下有4个小题，每小题4个选项）The clearly visible benefit of RT-flex engines is their smokeless operation at all ship speeds. This is achieved by the superior combustion performance with the common-rail fuel injection.This system maintains the fuel injection pressure at the optimum level right across the engine speed range, ensuring optimum combustion under all operating conditions. In addition, a selective shut-off of single injectors at very low speeds and an optimized exhaust valve timing help to keep smoke emissions below the visible limit.Sulzer RT-flex engines also have the advantage of steady running at lower speeds than engines with mechanically-controlled injection. They can run very steadily, and without smoking, at 10-12% of nominal speed, which for the RT-flex 60C is about 10-14rpm. This is made possible by the precise control of injection, together with the higher injection pressures achieved at low speed, and the sequential shut-off injectors.75.According to above massage, the advantage of common-rail injection is______.A. smokeless operationB. shockless operationC. noiseless operationD. no vibration operation76.According to above massage, RT-flex engine can optimize______.① fuel injection pressure② combustion ③ exhaust valve timingA.①②B. ①②③C..③D. ②77.The key feature of the Sulzer RT-flex system is that it gives complete freedom in the _____ andoperation of fuel injection and exhaust valve actuation.A. meteringB. timingC. controlD. using78.The RT-flex engine can run at very low speed, this is made possible by following things except_______.A. the precise control of injectionB. the higher injection pressuresC. the optimized exhaust valve timingD. the sequential shut-off injectors 三、中译英（共2题，请将答案写在答题纸上）79、（轮机日志）上午10时30分，由于不明原因运行中NO.1发电机跳闸，导致全船失电,NO.2发电机自动起动恢复正常供电。

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