第47期轮机英语

47期轮机英语考试题目一单项选择题A1.The___ engine is used for alternators and some times for main propulsion provide a propeller of between90 to 120 rpm.A.four-strokeB.two-stroke.C.slow speedD.reversibleB2.The abbreviation”MIP”stands for____,A.middle indicating pressureB.mean indicated pressureC.mean pitchD.middle indicated powerD3.The cetane number of a diesel fuel oil indicates its____.A.viscosityB.acid contentC.heating valueD.ignition qualityC4.In a two-stroke engine the camshaft rotates at___the enging rotational speed.A.halfB.twiceC.the same speed asD.four timesD5.A diesel enging is similar to a gasoline engine except that the former has no ____.A.cross-headB.cylinderC.connecting rodD.spark plugC6.It is easier to replace a dry cylinder liner than a wet one because____.A.of the thin wall thickedssB.honing makes it easier to maintain the desired oil filmC.water seals are not requiredD.it fits more loosely due to a decrease in heat transfer through the composite wallD7.A main bearing consists of two shells which are secured by means of studs and____.A.tie rodsB.though boltsC.lead wiresD.bearing capsC8.However fast or slow the combustion rate,it is still a____between carbon,hydrogen,sulph and oxygen that releases heat.A.physical deformationB.state exchangeC.chemical reactionD.coalescenceA9.During the fuel injection period,fuel pressure must exceed cylinder gas pressure to____.A.ensure penetration and distribution of the fuel in the combustion chamberB.ensure the needle valves is flushed clean duringeach injectionC.prevent combustion gas blowback into the open needle valveDprevent reflected pressure waves when the neddle valve close.B10.In a diesel engine lube oil system ,which of the following parts should be lubricated first?A.Camshaft bearingsB.Main bearingsC.Piston crownsD.Cylinder wallsB11.In a diesel engine closed freshwater cooling system,the amount of coolant flowing through the heat exchanger is controlled by the _____,A.suction pressure regulatorB.thermostatic bypass valveC.sea water temperatureD.water level in the expansion tankC12.Which of diesel engine compnents listed increases air density and helps to improve engine operating efficiency?A.ImpellerB.Air bottleC.Air coolerD.Exhaust diffuserB13.A large two-stroke/cycle direct reversing diesel engine is to be revered. Prior to the admission of starting air you must_____.A.line up the engine for restarting with diesel oilB.reposition the fuel injection camC.change the intake and exhaust valve cam positionsD.place the starting cam in the intermediate positionC14.Which of the listed governer characteristics will greatly affect the load sharing relationship between paralleled diesel generators?A.SensitivityB.PowerC.Speed drooppensationC15.Thermocouple pytometers are used on large,main propulsion diesel engines to indicate the temperature of the _____.A.cooling water leaving each cylinderB.fuel oil entering the injectorC.exhaust gases atvarious loactionsD.lube oil at the bearing suppliesB16.After starting a diesel engine,which of the listed oprating conditions should be checked first?A.Air box pressureB.Lube oil pressureC.Exhaust temperaturesD.Raw water pressureC17.To shut down a diesel engine after it exceeds the set maximum speed ,which type of device listed should be used?A.Speed limiting governorB.Over-speed governorC.Over-speed tripD.Over-speed relayA18.The treatment of the fuel oils involves storage,heating,filtering and_____.A.centrifugingB.pressurizingC.atomizationD.ignitingB19.A propeller,in order to operate efficiently,must rolate at a relatively_____ speedA.highB.lowC.fastD.lowlytcnt heat changes the___ of water.A.physical-stateB.temperatureC.atmospheric-pressureD.sensible-pressureC21.The primary function of a flame safeguard system, as used on am automatically fired auxiliary boiler,is toprevent_____.A.accidental dry firing and overpressureB.uncontrolled fires in the furnaceC.explosions in the boiler furnaceD.overheating of the pressure partsA22.Improper maintenance of the fule oil burners in an automatically fired auxiliary boiler could resuit in_______.A.increased fule consumptionB.increased feed-water consumptionC.fule pump failurebustion control systerm failureA23.Bumer ignition failure in an automatically fired auxiliary boiler could result in_____.A.a burned out solenoid in the oil supply valvaB.high tempersure excess airC.incorrectly setting the hot-welldump valveD.an incorrectly positioned burner smubber(缓冲器)relaryB24.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 tempretureC.abnormally high boiler water temperatureD.steam demand exceeding feed pump capacity0C25.Gear pumps are of positive displacement type pumps because they discharge a near constant amount of liquid_____pressure.A.depending onB.in relativeC.regardlessD.because ofC26.A supr gear pump should be operated with the discharge valves______.A.slightly openedB.thorttledC.fully openedD.halfway openedC27.An independent bilge suction is reqired for____.A.ballast tanksB.sludge tanksC.machinery space bilgesD.cargo hold bilgesA28.To thoroughly pump out the bilges ueing a horizontally mounted centrifugal pump,the________.A.pump must always be primedB.volute must impart a radial and rotary motion of the waterC.suction side connectin must guide the liquid to the lantern ringsD.stuffing box should not be allowed any water leakageB29.An inadequate reciprocating bilge pump discharge ismost often caused by________.A.defective safety valvesB.clogged suction stainersC.scarred cylinder wallsD.clogged drain valvesB30.In a compression refrigeration plant,the hot,high pressure refrigerant gas is cooled by the sea water and becomes liquid in the_______.pressorB.condenserC.throttle valveD.evaporatorD31.The___only allows for adjustment of temperature in each room by the occupant manually controlling the air volurne admitted.A.central air conditioning systemB.high velocity systemC .low velocity system D.single duct systemD32.The opening of the humidifier‟s valva of air-conditioner should be____,when the circurnstanc temperature is raised to above 5~8 0C in the winter.A.desreasedB.increasedC.fixedD.closedC33.Under normal conditions,the quantity of air circulation becomes less and less.Whatis the reason?A.dirty dclivery ductsB.too mush refrigerantC.the fouling filtersD.high temperature outsideD34.When bilge water is heated in a holding tank,which one of the following statementsis not accurate?A.The relative high temperature facilitates primary gravity separationB.Most of the oil and organic solvenits are rised to the top layerC.The relative high the temperature is, the more the top oil wil be collectedD.The normal high temperature has little use on the separation of emuslsified oil.C35.If scparating efffct of the oily water separeator is not good, we can improve it by____.A.flushing separator with cold waterB.increasing bilge water supply flowC.heat oily wather properlyD.opening manual oil discharge vavleC36.Which is the pollution prevention equipmen?A.booster pumpB.evaporatorC.incineratorD.coolerB37When does auxiliary burner of rotary nozzle type incinerator put into use?І.when igniting П.the waste oil for dealing-water is too mush Ш.before stopping incineratorA.І+ПB.І+ШC.П+Ш DІ+П+ШA38.When anacrobic bacteria cinvert the sewage to an inert sludge,____.A.no oxygen is neededB.oxygen is necessaryC.oxygen is given offD.no gas is produced.C39.For a I..O purifier, if the back pressure of the oil outlet ie too high, the interface between oil and water in the bolw will____.A.be interruptedB.move downwardsC.move outwardsD.retain original positionA40.When scperating the lube oil without additive,it is ususlly working with hot waher; the aim isto remove___from it.A.acidB.oil sludgeC.mechanical impurityD.salinityC41. If the bolw of a disk type centrifugal purifier when opened as a separator is not primed the_____.A.oil has a tendency to emulsify in the bowlB.purifier wil act as a clarifier at the discharge ringC.oil wil act lost through the water discharge portsD.oil solids will be dsposited only at the intermediate top diskB42.Tube leaks in the distillate cooler of a two stage flash evaporator will result in___.A.loss of secong stage vacuumB.contamination of the distillateC.lower feed inlet tempercratureD.contarnination of the second stage condenserB43.Small droplets of water entrained in the flashed vapor produced in a flash-type evaporator,are removed by the____.A.spray pipesB.demistersC.condensersD.splash bafflesB44.Overflow valve usually be used to____.A.control the fluid flow through itB.prevent the pressure before overflow valve over the specified valueC.make the pressure after overflow valve steadyD.control the direction of oil flowA45.Among the basic categories of equipment, which of the following are used to convert menchanical into hydraulic energy?A.the hydraulic pumpsB.valvesC.hydraulic cylindersD.hydraulic motorsC46.Cargo handing unit is rated according to the___.A.cargo craneB.jibC.safe working loadD.oil pressureC47.The part of the anchor windlass that cngages the anchor chain for lifting is called the_____.A.warping headB.fairleadC.wildcatD.capstanD48.In automatic____,the which may be overhanled and wire is piad off the barrel at a pre-determinedmaximum tension.A.cranesB.windlassC.capstansD.mooring winchesD49.The major source of chemical contaminants in hydraulic fluid is_____,A.microscopic steel shavingsB.abrasive wasteC.anti-oxidant compoundsD.oxidation by-productsB50.Before doing any work on a hydraulic system equippe with accumulators , you should _____.A.drain the accumulators and purge with oxygenB.bleed off all stored energy from the accumulators completelyC.charge the accumulators to prevent system energy lossD.pupm the hydraulic fluid into the accumulators to prevent fluid lossB51. 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 voltageA52.The frequency of an operating altemator is controlled by the_____.A relative speed of the rotor polesB number of tums of wire in the armature coilC strenghth of the magnets usedD output voltageC53.Prior to closing the breaker when paralleling two AC generators,the recommended practice is to have the frequency of incoming machine_____.A slightly less then line frequencyB the same as the line frequencyC shightly less than the line frequencyD have nothing to do with the line frequencyC54.If two A.C.generators are to be operated in parallel, the load is distributed evenly by_____.A means of rheostatB a balance coilC adjusting the govemor settingsD changing exciationB55.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 componentD56.______ is (are) not power supplied by main switchboard directly.A.Steering gear and windlassB.Navigation light and radio power panelC.Navigation device power boxD.Daily fresh water pumpC57.The emergency generation or emergency battery is connected to_____ on most large ships.A.distribution boardsB.section boardsC.emergency switch boardsD.main switch boardsA58_____ connectors hold best if a wire is accidentally pulled or a connection becomes looseA.Ring typeB.Fork typeC.Spade typeD.Push on, pull off typeA59.The primary function of an electric motor is to_____.A.Develop torqueB.generate high voltagesC.peoduce a magnetic fieldD.generate high electrical resistanceB60 Fusos placed in series with a thermal trip-type circuit breaker are used for___.A.time-delay protectionB.short-circuit protectionC.short duration surge protectionD.sustained overlaod protectionD61.Shore power must be____during dock repair.A.disconnectedB.switched offC.cut offD.connectedB62.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 dependentB63.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 polishedA64.____is a precaution which contributees to avoiding trouble under normal operating conditions.A.Constant inspectionB.Keeping constant loadC.Remaining constant temperatureD.Varying speedC65.During ship manoeuvering,when the diesel is stopped,which of the following 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 parametersA66.A tank which has been scaled 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 tanks coatings give off poisonous vapors in the presence of moistureB67.The class of fire on which a blanketing effect is essential to extinguish the fire is_____.A.Class…A‟B.Class…B‟C.Class…C‟D.Class…D‟A68.Fire in escaping flammable gas are quickly brought under control by____.A.stopping the flow of gasB.reducing the chemical chain reactionC.increasing the oxygen supplyD.cooling below the autoignition pointD69.Which of the following stateements is ture coucerning carbon dioxide when used as a fire extinguishing agent?A.Carbon dioxide is corrosive when exposed to fire.B.Carbon dioxide should be applised slowly to a large engine room fire.C.Its total cooling effect is far greater than waterD.Its smothering effect is excellent for class B firesC70.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.B71.To determine that a compartment contains sufficient oxygen to sustain life,you should use a/an_____. A.explosimeser B.oxygen indicatorC.fresh air indicatorD.emergency escape breathing deviceD72.If the overflow tank high-level alarm sounds while the fuel oil tanks are being topped off,the engineer should____.A.close the static leg filling valveB.close the overflow tank filling valveC.reduce the oil pumping rateD.stop the fuel oil pumping operationB73.The_____tool is used in precision work to smooth or enlarge a slightly undersized hole.A.round outB.round lifeC.reamerD.hole drillerC74.During the dock repair,each sea valve must be disassembled,cleaned and ground well,the sealing surface between the valve and the valve seat should be checked and ratified by____before reassembled.A.chief engineerB.surveyorC.the engineerD.the technique personnel of the shipyardC75.The additional mark___in the Classification Certificate for Machinery means propulsion apparatus is remotely controlled on the navigating bridge control station is unmanned periodically.A.BRCB..MCCC.AUT-OD.AUT-1D76.The Oil Record Book, as a part of the ship‟s official logbook , shall be kept on board and preserved for a period of_____.A.3 years after making the first entryB.2 years after the last entryC 3months after last entry D.3 years after the last entryD77.The valid period of the International Oil Pollution Prevention Certificate on board isn‟t more than _____.A.one yearB.two yearsC.four yearsD.five yearsD78.During the PSC inspection, under the provisions of SOLAS 74, which one may not be regarded as clear grounds for ships‟ detainment?A.failure of the proper operation of emergency generatorB.insulation of piping including exhaust pipes in engine room contaminated by oilC.improper operation of bilge pumping arrangementsD.damaged sanitary pumpA79.“Insufficiency of manning or insufficiency of certification of seafarers” is an identification of a ___.A.substandard shipB.standard shipC.over-standard shipD.regerence shipB80.STCW 78/95 Convention shall apply to seafarers____on board seagoing ships entitled to fly the flag of a Party.A.servedB.servingC.surveyedD.surveyingC81.All engineer officers and enginer room ratings shall be aware of the serious cffects of operational or accidental pollution of the marine environment and shall take all possible_____to prevent such pollution, particularly within the framework of relevant international and port regulations.A.stepsB.proceduresC.precautionsD.programsA82When the order given by bridge may have bad results the duty engineer should____.rm the captain for a further considerationrm the captain, and not perorm itC.stop the M/E immediately, and then imform the chief engineerD.stop the M/E immediately, and then imform the captainB83.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 solventC84.According to the international regulations concerning the prevention of pollution of sea areas from ships, the disposal into the sea of all plastic is ____.A.welcomeB.admitted in some special sea aresC.prohibitedD.acceptableC85. The main objective of the SOLAS Convention is__.A.to provide a solution of lowering pollution at seaB.to specify minimum standards for the members composing the watch at seaC. to specify minimum standards for ships considering their safetyD.to tell the company how to go about running their businessD86.Which of the following about ISM Code is not right?A.It aim to ensure safety at seaB. It aim to avoid damage to the environmentC. It aim to prevent human injury or loss of lifeD. It aim to prevent a method to run a companyA87.The ship security assessment is an essential and integral part of the process of developing and updating______.A.the ship security planB.the company security planC.the port security planD.the national security planC88.In order to limit the introduction of alien species by ship .______ was adopted on 13 Feb, 2004 at the IMO.A.Revised Marpol annex ⅠB.Revised Marpol annex ⅡC.Intermational convention for the control and management of ship‟s ballast water and sedimentsD.ISPS Code二．关联题第一组Starting Air SystemThe engine is started with compressed air of 30 bar.Minimum pressure required is 15bar.A pressure transmitter PT301 mounted on the starting air line before the main starting valve has an indicator in the instrument panel.The supply line form the starting air bottles is provided with a nonreturn valve and a drain valve.The solenoid valve is electrica(remote control) or manual(on the engine)operated and send after activation a pilot air signal to the main starting air valve .After the main staring air valve is activated the air flows through the flame arresters to the starting air valves in the cylinder heads. Part of the air flow via the starting air distributor to each of the starting air valves in the cylinder heads.The starting air distributor controls the timing of opening and closing of the starting air valves. On the moment the main starting air valve is operated also the governor booster is energized.The main startting air line is provided of a safety valve.Interlock valve is a safety device to avoid an engine start with engaged turning gear.B89.As the engine is started with compressed air , the correct sequence of the following devices being activated is _____. 1.solenoid valve 2.starting air valve 3.starting air distributor 4.main starting air valveernor boosterA.15423B.14532C.14325D.43125D90.The underline sentence “the governor booster is energized”probably means_____.A.the governor booster is supplied with electric powerB.hydraulic oil is pumped into the governor boosterC.the governor starts to work before starting the engineD.the governor booster is supplied with pressurized air before starting the engineB91.Which of the following components are attached to the air bottles?A.a pressure transmitter PT 301B.a non-return valve and a drain valveC.a solenoid valveD.a starting air distributorD92.When the engine is engaged with turning gear, _____ can keep the engine from starting.A,the control air B.the solenoid valveC.the main starting air valveD.the interlock valve第二组（1）The company should establish procedures to ensure that the ship is maintained in conformity whit the provisions of the relewant rules and regulations and with any additional requirements which may be established by the company.(2)In meeting these requirements the company should ensure that:(2.1)inspections are held at appropriate intervals;(2.1)any non-conformity is reported,withIts possible cause,if known;(2.3)appropriate corrective action is taken;and(2.4)records of these activities are maintained(3)The company should establish procedures in its safety management system to identify equipment and technical sy sudden operational failure of which may result in hazardous situations. The safety management system should pro specific measures aimed at promoting the reliability of such equipment or sysyems.Theses measures should include th testing of stand-by arrangements and equipment or technical systems that are not in continuous use.D93This passage concerns___A.the inspections of the ship and equipmentB.the reports of non-confomities.C.the corrective actionsD.the maintenance of the ship and equipmentA94.In(2.4)of this passage,these activities‟refers to the following activities except_____.A.the establishment of any additional requirementB.the corrective action takeC.the corrective action takenD.the reporting of any non-conformityB95.According to this passage,some particular equipment should have specific measures to prom reliability,because______.A.it is not in continuous useB.its sudden failure may result in hazardous situationsC.its stand-by arrangements may not be regularly testedD.it may not be identified by the Company‟s safety managemet systemD96.This passage is probably taken from_____.A.the MARPOL ConventionB.the STCW ConventionC.the ISPS CodeD.the ISM Code1-5ABDCD 6-10CDCAB11-15BCBCC 16-20BCABA21-25DAABC 26-30CCABB31-35DDCDC 36-40CBACA41-45CBBBC 46-50CCDDB51-55BACCB 56-60DCAAB61-65DBBAC 66-70ABADC71-75BDBCC 76-80DDDAB81-88CABCCDAC 89-96BDBDDABD。