轮机英语三管轮试题分油机

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轮机英语真题45期甲类三管轮

轮机英语真题45期甲类三管轮轮机英语第45期1.These acid residues must be prevented from entering the crankcase otherwise the lube oil wouldbe _______A.contaminated B .emulsified C deteriorated D .o_idated2.The ratio of the brake horsepower to the indicated horsepower of a diesel engine is its _______A.thermal efficiencyB.mechanical efficiencyC.brake thermal efficiencyD.volumetric efficiency3.The cetane number of a diesel fuel oil medicates its _________A.viscosityB.acid contentC.heating valueD.ignition quality4.The greatest turbulence in a diesel engine cylinder is created by the ________A.shape of the bustion chamberB.fuel injection spray patternC.cylinder swept volumeD.degree of peration of the fuel oil droplets5.The projection on a shaft designed to change circular motion into up and down or back and foremotion is called ______A.wheelB.crankshaftC.running gearD.cam6.A clearly visible benefit of RT-fle_ engines is their________operation at all ship speeds.This isachieved by the superior bustion performance.A.shocklessB.smokelessC.no vibration D noiseless7.A main bearing consists of two shells which are secured by means of studs and______A.tie rodsB.through boltsC.lead wiresD.bearing caps8.pared to four-stroke/cycle engines, two-stroke/cycle diesel engines have the disadvantage of_________A.less even torqueB.higher cylinder head temperaturesC.fewer power strokes per revolutionD.greater weight/size requirements9.________controls the fuel oil temperature in order to provide oil at the correct viscosity forbustionA.The viscosity regulatorB.The temperature controllerC.The flow meterD.The pressure switch10.A lubricant often has to perform many duties in any situation, in addition to its fundamental job of__________A.resisting o_idizationB.reducing frictionC.promoting moving speedD.developing inertia11.Shaker, circulation, and spray are the three general methods usedin _______A.pre-injection fuel oil treatmentB.lube oil filtrationC.lube oil purificationD.piston cooling12.Which of the diesel engine ponents listed increases air density and helps to improve engineoperating efficiency?A.ImpellerB.Air bottleC.Air cooler D E_haust diffuser13.Each cylinder has one starting valve which is usually opened by air pressure and closed by__________.A.nuts and boltsB.new jointsC.spring forceD.sealing rings14.Which of the listed governor characteristics will greatly affect the load sharing relationshipbetween paralleled diesel generators?A.SensitivityB.PowerC.Speed droopD.pensation15.A pyrometer is an instrument monly used to measure_______.A.cylinder pressureB.flame intensityC.e_haust gas temperatureD.crankshaft a_ial alignment16.After starting a diesel engine, which of the listed operating conditions should be checked first?A.Air bo_ pressureB.Lube oil pressureC.E_haust temperaturesD.Raw water pressure17.A high temperature alarm or ______which will melt is used to guard against the e_plosion ofpressor air pipelines.A.a flame trapB.a relief valveC.a fusible plugD.a bursting cap18.Great care is dedicated to the removal of ______from the scavenge air.A.gravityB.viscosityC.densityD.humidity19.Lubrication for the main reduction gears used with diesel enginesis usually supplied by ____A.oil from the main engine sumpB.an independent lube oil systemC.the stern bearing head tankD.the stern bearing sump tank20.The ma_imum pressure developed by a waste heat boiler is determined by the main engine e_haust______.A.gas positionB.gas temperatureC.pressureD.timing21.The _____is fitted in pair one is the main valve the other the au_iliary or standby.A.main sB.au_iliary s valveC.feed check or control valveD.blow down valve22.Improper maintenance of the fuel oil burners in an automatically fired au_iliary boiler, couldresult in _______.A.increased fuel consumptionB.increased feed-water consumptionC.fuel pump failureD.bustion control system failure23.Burner ignition failure in an automatically fired au_iliary boiler would be caused by _____A.a burned out solenoid in the oil supply valveB.high temperature e_cess airC.incorrectly setting the hot-well dump valveD.an incorrectly positioned burner snubber (缓冲器) relay24.Waterside scale in a fire-tube boiler may cause ______.A.increased heat transferB.fireside erosionC.high demandD.overheated tubes25.Throttling in the ________line of a centrifugal pump involves the risk of the pump cavitation A.suctionB.e_haustC.pressureD.discharge26.Centrifugal pimp can be designed with a number of impellers _____ to attain a high final deliverypressure.A.at two ends of the same shaftB.opposite each otherC.parallelD.in series27.Before disconnecting a joint in a pipeline, you should _______.A.determine the size of the gasketB.hang a bucket under the jointC.have a first aid kit on handD.be sure no pressure e_ists in the line28.To thoroughly pump out the bilges using 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 connection must guide the liquid to the lantern ringsD.stuffing bo_ should not be allowed any water leakage29.Which of the listed conditions can lead to cavitation in a centrifugal pump?A.V apor pockets formed in the suction flow streamB.Rough casing volute surfacesC.Worn wearing ringsD.Heavy fluid in the flow stream30.Refrigerant entering the pressor of a refrigeration system should be in which of the follogconditions?A.Sub-cooled liquidB.Sub-cooled vaporC.Superheated vaporD.Liquid31.______is the circulation and refreshing of the air in a space without neccssarily a change of1temperature.A.RefrigerationB.Air conditioningC.V entilationD.Heating32.In a chilled water air conditioning unit using a reciprocating pressor, the refrigerating effectthe 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 pressor33.If a plastic film insulation bees damaged in air conditioning system,______may form withinthe film.A.evaporationB.condensationC.liquefiesD.vaporization34.The resistance to the movement of the globule in oily water mi_ture depends on its size and the_________of the fluid.A.pressureB.velocityC.gravityD.viscosity35.Because the flow rate of supply water pump is too large, oily water separator does not work well.Which of the follog is not the reason.?A.the monitoring equipment is out of orderB.separating effect bees badC.separating effect bees bad and inner wall is contaminatedD.inner wall is contaminated36.Which of the follog would not be burnt in an incinerator on board.A.waste oilB.waste clothesC.oil ragsD.plastic garbage37.Concerning the incinerator’s operating, which of the follog is not correct?A.scavenging time should be more than 30 seconds before ignitingB.the oil temperature of waste oil tank is 80~100℃C.first igniting the incinerator with diesel oil, when the temperature of hearth is about 600℃D.the ash from incinerator can be dumped into sea no distance limitation38._____are used to digest the sewage to produce innocuous sludge in a biological sewage treatmentplant.A.anaerobic bacteriaB.aerobic bacteriaC.air bubblesD.disinfection chemicals39.A centrifuge arranged to separate two liquids is known as ______.A.an oily water separatorB.a purifierC.a centrifugal pressorD.a clarifier40.A centrifugal fuel oil purifier should be shut down if ______.A.more sealing water is neededB.the over cl needs tighteningC.the purifier has a bad vibration when startedD.water is discharged from overflow line41.If the bowl of a disk type centrifugal purifier when operated asa separator is not primed, the_____A.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 disk42.In a two-stage flash-type evaporator, e_cess brine in the first stage automatically passes_____.A.directly to the second stage feed heaterB.directly overboard through the brine coolerC.into the second stage flash chamberD.into the second stage vapor condenser43.In which of the areas listed would you e_pect to find the highest salt concentration in a flash evaporator?A.Distiller air ejector cooling mediumB.Saltwater heater dischargeC.First-stage internal feed bo_D.Second-stage internal feed bo_44.Hydraulic control check valve can be used to ____in the marine hydraulic mechanism.A.control the back pressure of return oilB.lock the oil lines under some conditionsC.permit oil flow with reversed directionD.Second-stage internal feed bo_45.The delivery rate of a variable stroke a_ial piston hydraulic pump is controlled by varying theposition of the _______.A.slide blockB.tilting bo_C.pintleD.reaction ring46.The crane is usually mounted on a pedestal to offer adequate ________to the operator.A.timeB.spaceC.lengthD.visibility47.Which problems can occur if the brake band lining of a wildcat brake bees e_cessively worn?A.The driving engine will over-speed.B.The anchor will immediately dropC.The clutch will overheatD.The brake’s effectiveness will be reduced48._______with various arrangements of barrels are the usual mooring equipment used on boardships.A.CranesB.chesC.CapstansD.dlass49.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 oilIn the design of hydraulic piping and equipment consideration is given to minimize turbulence inthe hydraulic fluid as this will cause _______.A.molecular fluid vibrationB.energy lossesC .wide pressure variations D.mechanical damage to control valves51.One factor that determines the frequency of an alternator is the ________.A.number of turns of wire in the armature coilB.number of magic polesC.strength of the mags usedD.output voltage52.What will be the phase angle relationship of a si_-pole, three-phase, rotating field generator?A.60B.120180D.36053.To parallel an ining machine to a running machine therefore it is necessary to ensure firstlythat ________.A.two frequencies must be brought into phaseB.the ining machine accepts a small amount of loadC.the running machine must be unloadD.both voltages are equal54.The frequency of an alternator is controlled from the main switchboard by adjusting the _______.A.frequency meterB.voltage regulatorC.governor controlD.sychroscope switch55.______is provided to alternators, in the event of prime mover failure to ensure that the alternatordoes not act as a motor.A.Reverse current protectionB.Reverse power protectionC.Synchronising deviceD.Frequency meter56._______is used to control, modulate, monitor and protect generator set.A.Control panelB.Load panelC.Paralleling panelD.Busbar57.Which of the listed sections of an emergency switchboard is used to supply power for alarmsignals 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 bus58.The ground terminal of a starter should be connected to ________.A.the mon ground pointB.the starter’s frameC.the municatorD.the starter’s mounting bolts59.Which of the electrical properties listed will always be the same for each ponent in a parallelcircuit?2A.ImpedanceB.CurrentC.ResistanceD.V oltage60.In a series circuit, which value will remain unchanged at all places in the circuit?A.V oltageB.CurrentC.ResistanceD.Inductance61.In an alternating current electrical system, a low system power factor is a direct sign of _____A.wasted energyB.efficient operationC.a short in the e_citer field dingsD.an e_cessive number of minor system grounds62.Accidental grounds in a shipboard electrical system must be repaired as soon as possible as they will ________.A.result in immediate power outagesB.damage circuit breakersC.ear on the ground detection systemD.damage insulation and may cause outage63.If the main engine starting consecutively failed _______times, the cause should be found and the trouble eliminated before ne_t starting.A.2B.3C.4D.564.The normal color of the e_haust gas of the diesel should be _______.A.achromatism or thin grayB.thin whiteC.sky-blue D black65.After finished with engine, which of the follog cannot be shut off by the duty engineer?A.fuel valveB.the main starting valveC.the sea chestD.the main sea water pump inlet valve66.Before the seas get rough, it is a good safety practice to _______.A.secure loose gearB.move quickly about the shipC.increase lightingD.shutdown au_iliary equipment67.A class “C” fire would occur in ________.A.beddingB.pipe insulationC.painta generator68.The most likely place for a fire to start through the process of spontaneous bustion is in _________.A.an electrical switchboardB.the pressure tanksC.the fuel oil tanksD.the oily rag bin69.Which of the fire e_tinguishers listed is to be weighed annually and sent ashore for recharging if the weight loss e_ceeds 10‰of the weight of a full charge?A.FoamB.Soda acidC.Dry chemicalD.Carbon dio_ide70.Which of the follog ponents provides a direct source of seawater for the fire main system?Rose bo_B.Sea chestC.Sluice valveD.Fire pump stuffing bo_71.When administering artificial respiration, it is of the utmost importance to ________.A.use the mouth-to-mouth methodB.clear airwaysC.use rhythmic pressure methodD.check the injured person’s heartbeat72.Obviously, for a given fuel oil, its pour point is _______its cloud point.A.lower thanB.higher thanC.as same asbetter than73.____, where the ship is docked for hull coating renewal, and for any other required underwater work to be carried out, when the opportunity is taken to make other repairs.A.V oyage repairsB.Routine dockingC.Damage repairsD.conversion74.When the dock is refilled with water after docking repair, the first work which should be done by engineer department is ________.A.igniting au_iliary boilerB.releasing air in sea water systemC.starting generatorD.cut off shore power75.The correct tightening is obtained by the use of ______to measure the e_tension given to the bolts.pressure gaugesB.thermometersC.stretch gaugesD.bridge gauges76.In the Oil Record Book, a prehensive list of operational items are grouped into operational sections Each section is codified by a/an________A.numberB.abbreviationC.letterD.number, abbreviation and letter77.Under MARPOL Code the ship to which it lies has to carry_______.A.an International Ship Security CertificateB.an International Oil Pollution Prevention CertificateC.a Safety Management Certificatean International Ballast Water Management Certificate78.Which one is not the “clear grounds” for a more detailed inspection?A.the master and the chief engineer are unable to municate effectivelyB.serious corrosion on the hullC.damaged sanitary pumpD.one page missing in the oil record book79.“Insufficiency of manning or insufficiency of certification of seafarers” is an identification of a________A.substandard shipB.standard shipC.over-standard shipD.reference ship80.STCW 78/95 Convention shall ly to seafarers _____on board seagoing ship entitled to fly theflag of a Party.A.servedB.servingC.surveyedD.surveying81.The officer in charge of the engineering _______the watch to the relieving officer if there isreason to believe that the latter is obviously not capable of carrying out the watch-keeping duties effectively.A.shall take overB.shall not take overC.shall band overD.shall not hand over82.When the order given by bridge may have bad results, the duty engineer should_____A.inform the captain for a further considerationinform the captain, and not perform itC.s the M/E immediately, and then inform the chief engineerD.s the M/E immediately, and then inform the captain83.The scuppers should be plugged _____.A.only if fi_ed containment is not usedB.only if portable containment is not usedC.only if fi_ed containment drains are openD.whenever the vessel is being bunkered84.If it bees necessary to pump bilges while a vessel is in port, which of the follog proceduresshould be followed?A.Pump only if the discharge is led to a shore tank or bargeB.Pump only during the hours of darknessC.Pump only on the outgoing tideD.Pump only as much as is necessaryThe SOLAS convention prescribes that in the fire fighting drill the duty engineer should start thefire pump and supply deck water in _______minute(s)A.5B.3C.2D.186.Accordi ng to the IS M CODE, the “person” in the phrase “to designate a person or persons ashorehaving direct access to the highest level of management” refers to ________.A.the manager of the shipping panyB.the master of the shipC.the designated person on board shopD.the designated person ashore87.In order to strengthen maritime security and prevent and suppress acts of terrorism againstshipping, a new, prehensive security regime for international shipping was set to enter into force in July 20__4.The new regime is ________.A.ISM CodeB.ISPS CodeC.FSS CodeD.IBCC Code88.In the voyage, when carrying out abandon ship drill, ________should be test every time.A.the emergency lighting system for muster and abandon shipB.air/oil emergency shut-down3C.M.E.emergency operationD.main/au_iliary steering gear changing二．关联题（关联题干下有4个小题，每小题4个选项）第一组Scavenge port inspection provides useful information about the condition of cylinders, pistons, and rings, at low e_pense.The inspection consists of visually e_amining the piston, the rings and the lower part of the cylinder liner, directly through the scavenge air ports To reduce the risk of scavenge bo_ fire, remove any oil sludge and carbon deposits in the scavenge air bo_ and receiver in connection with the inspection.The port inspection should be carried out at the first s after a long voyage, e.g.by anchoring if possible, to obtain the most reliable result with regard to the effectiveness and sufficiency of the cylinder lubrication and the bustion cycle (plete or inplete)A misleading result may be obtained if the port inspection iscarried out after arrival at harbor, since manoeuing to the quay andlow-load running, e.g.river or canal passage, requires increased cylinder oil dosage, i.e.the cylinders are e_cessively lubricated, Further, during low load, the bustion ccle might not be as effective and plete as e_pected, due to the actual fuel oil qualities and service (running) condition of thefuel injection equipment.It is highly remended to take this information into consideration.89.The ponents of an engine involved in normal scavenge portinspection prise _______.①the piston②piston rings③the lower part of the cylinder liner④the fuel injectorA.①②B.①②③④C.②③D.①②③90.If the scavenge bo_ had too much oil sludge and carbon deposits, what would occur?A.e_cessive cylinder oil consumptionB.the scavenge bo_ fireC.the crankcase e_plosionD.e_cessive wear of the cylinder liner91.In order to obtain the most reliable result with regard to the effectiveness and sufficiency of the cylinder lubrication and the bustion cycle, when should the scavenge port inspection be carried out?A.at the first s after a long voyage, e.g.by anchoring if possibleB.at the first s after arrival at harborC.at the first s after low load runningD.at the first s after passing river or canal passage92.Under what condition that the scavenge pot inspection can gain a misleading result?①after passed through Panama Canal②after got alongside s hanghai quay③after arrival shanghai roadstead (外锚地)A.②③B.①②C.①②③ D①第二组Current regulations with respect to the discharge of oily water set limits of concentration 15 parts per million.A monitor is required to measure these values and provide both continuous records and an alarm where the permitted level is e_ceeded.The principle used is that of ultra-violet fluorescence.This is the emission of light by a molecule that has absorbed light.During the short interval between absorption and emission, energyis lost and light of a longer wavelength is emitted.Oil fluoresces more readily than water and this provides the means for its detection.A sle is drawn off from the overboard discharge and passes througha sle cell.An ultra-violet light is directed at the sle and the fluorescenceis monitored by a photoelectric cell Where an e_cessive level of contamination is detected an alarm is sounded and diverting valves are operated.The discharging liquid is then passed to a slop tank.93.The passage is mainly about ________.A.oily water separatorB.current regulations related to oil pollutionC.oil in water monitorD.the principle of ultra-violet fluorescence94.A monitor can obtain all of the follog functions e_cept _______.A.measuring oil content valuesB.providing continuous recordsC.lowering the oil content below 15 ppmD.providing an alarm unit warning of levels of discharge in e_cess of 15 ppm95.From the passage, we can learn that the ultra-violet fluorescence is a kind of________A.oil sleB.lightC.photoelectric cellD.alarm unit96.A sle is drawn off from ______and passes through a sle cellA.bilge waterB.discharge of oil separatorC.slop tankD.discharge of oily water separator 45轮机英语的答案1-5 ABDCD 6-10 ADBAB11-15 DCCCC 16-20 BCDBB21-25 CAADA 26-30 DDAAC31-35 CCBDA 36-40 DDBBC41-45 CCDBB 46-50 DDBCB51-55 BBDCB 56-60 ADBDB61-65 ADBAC 66-70 ADDDB71-75 DABDC 76-80 DBCAB81-88 DADA ADBA89-92 ~~~~ 93-96~~~~4。

轮机长，大管轮，三管轮，机工面试试题

轮机长，大管轮，三管轮，机工面试试题面试李XX老轨题目：1.简单描述最近一次PSC检查过程。

（英语）2.最近一次PSC检查出现何种缺陷？（英语）3.移动式灭火器种类有哪些？（英语）4.美国海域如何使用低硫油？（英语）5.上条船使用气缸油系统型号？气缸油种类？（汉语）6.主机换向失败报警如何处理？（汉语）7.换油过程需要注意哪些事项？换油过程中主机高压油泵或油头卡死如何处理？（汉语）8.PSC检查中可能会检查哪些轮机部项目？（汉语）9.救生艇检查中轮机项目有哪些？四种灯检查？（汉语）10.上条船运输过何种货物？装粮时轮机部需要做哪些工作配合？（汉语）（油舱加热温度不高于40度；货舱污水管路封死等）11.扫气口发黑可能是哪种原因？（汉语）12.如何进行风险评估?（汉语）（矩阵处理法：风险发生的可能性x风险事件致损程度=风险等级，相应的风险控制措施）面试叶XX老轨题目（两个面试的）：1、主机高压油泵在换油时，柱塞偶件咬合怎么办？两个面面试的，分别用汉语和英语；（汉语、英语）2、你做过的船中，你曾碰到过哪些故障是很难解决的或解决不了的？（汉语）3、自我介绍；（英语）4、加油前应准备哪些工作？（汉语）加油时，BDN有争议时，怎么解决？（英语）5、油水分离器PSC检查时，都检查哪些内容？（英语）6、隔离阀有什么作用？（汉语）7、主机增压器前温度一般是多少？增压器后一般是多少？前后那个高？（英语）（前300多、后200多）8、美国控制区如何换油？（汉语）9、如何控制油耗与速度？（汉语）10、叶老轨当时在医院，声音很吵，还有其他英语提问，一时想不起来。

面试谢XX老轨题目上山东德丰（三个面试的）：1. PSC主要检查哪些项目？（汉语/英语）2. 油水记录簿中C,D各舱柜要与哪个证书相符？（IOPP附页）3. TECHNICAL FILE记录哪些内容？（柴油机参数记录簿记录）4. 电喷主机与传统主机区别？5. 电喷主机管理重点。

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。

轮机三管轮考证英语41试题加答案

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, iscommonly 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 engineoperating 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 diesel engine 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 dividedinto two main systems, 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 temperature 10. 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 fromthe 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 areciprocating pump? I. Its discharge is continuous; II. It has no internal valves; III. Uponaccidental 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 awarmer and a cooler 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 effectof 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 compressor24.Sludge may form in the lubricating oil crankcase of a reciprocating air conditioning compressoras 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 butoverloading 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 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 ______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 interfacetowards 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. Wechanged the disc and no oil 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 thewinch drum and should 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 isused aboard ship as a ______.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 water generator43.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 bypower supply in case of loss 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 ______andonly the operation 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 unitor console should be ___.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 andindicator 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 power 58.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 thatpersonnel are watching at engine assembly control station and monitoring all machinery andelectronic 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 certificateshave expired a few days 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 factors shall 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 withoutdelay______.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 tomaintain an underway watch.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 avessel ______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 allinternational treaties 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 bemaintained 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~~~~。

问答05 轮机英语口语三管轮考证试题

Chapter 51. In which cases must bunkering be stopped?In case of fire, oil spill and bad weather.2. What prepartions are required on deck prior to(在…之前) the bunkering operation?Block the scuppers, prepare the anti-pollution material and fire fighting equipment, and so on.3. Describe a procedure for the commencement（开始）of pumping oil.Check the bunkering v/v, confirm the contacting signals with the oil barge, first slowly filling in the oil, then speed up.4. What should you do before bunkering?Make bunkering plan Make sure the bunkering speed, the emergency signals and brand of the oil.5. What measures against oil pollution should be taken before bunkering?同26. What do the terms TAN and TBN for lube oil stand for? TAN stands for total acid number, and TBN stands for total base number.7. When handling oil, what is an important consideration inorder to ensure safety?Fire prevention.8. What sort of documentation is involved with bunkering ? Oil Record Book, engine room log bo ok.,Bunkering plan, oil receipt,bunkering notice, and so on9. What should you do during bunkering ?Sound tanks from time to time, check pumping rate and keep watching for leakage , and so on.10. How do you take samples during bunkering?Open the oil valve and let the oil drop into the oil bottles.11. Why are communications important during bunkering . Because good communication can help us prevent oil spillage12 Describe how you would determine the volume of fuel loaded during the bundering operation.Sound the oil tanks, measure the oil temperature, and calculate the bunking quantity according to the tank table.13. What should you do after bunkering?Confirm the bunking quatity, disconnect the oil pipe, take oil samples make records in the log book.14. What are usually contained in a repair list?Name of the items to be repaired, position and the requiement,Ship’s main characteristics parameter and so on.15. Name some commonly used repairing methods.Weld, grind, machine, polish and so on16. Who will be responsible for the damage of the repaired parts if they occur within a few days after the repair? Shipyard.17. What power will be supplied after docking?Shore power18. What kind of work do we usually do for docking repair? The repairing work below the water line.19. During the docking repair,who usually supply fresh water?shipyard20.Who is in charge of the safety code agreement for the docking repair?shipyard21.What kinds of cargo should be discharged from the vessel while proceeding docking repair?All kinds of cargo should be discharged22.When reassembling propeller,who must supervise the working course on the spot?The chief engineer,the surveyor and the chief officer.23. When you want to build a new ship,it must comply with some rules.what are they?Rules for the constructiou of sea-going steel ships,solas,marpol ,and so on,24.Why is a survey necessary for a ship?To the safety of the ship, the crew, and property25.When and where did you have the PSC inspection.Last month in singapore26. Who should be present when a boiler survey is carried out?The chief engineer and surveyor27. Suppose you ship has been insured, what will you do first to claim for the insurance if the engine is damaged?The chief engineer make out a report about the damage and the captain give a sea protest.海事报告书28.Whom do you usually invite to come on board to ascertain and verify the extent of damage of machines or equipment.A surveyor from CCS29. A ship’s survery may be divided into three basictypes.what are they?Statutory survey法定检验, classification survey入级检验, notarial survey公证鉴定30. What does general survey usually include?Annual survey, periodical survey, damage survey, Temporary survey and so on31. How do you bargain?The price is too high. Can you give me some discount?32. What will you say if the price offered is higher than you expected?同3133. If you want to order stores and spare parts, whom will you turn to?Ship chandler34. What will you take into consideration if you want to get some stores and spare parts aboard?Delivery time, place, and quantity35. If you order some stores form the shipchandler,what should be generally listed out on the order list.Name , specification, and quantity36. How do you usually pay for the stores and spare parts? Inform the ship owner to pay by the account.37. Who will check the stores and spare pares delivered on board ship?The second engineer.38. What should be paid attention to when bunkering fuel oil?Fire prevention, and pollution prevention。

轮机英语历年试题卷一

HNKJ/C4/0701-16卷（一）科目：轮机英语适用对象：无限、近洋航区3000KW 及以上船舶二/三管轮一．单项选择题：1. The pump has a constant stroke and the amount of fuel deliveredis regulated by rotating ______ which has a specially arranged helical groove cut into it.A. the pump cylinderB. the pump camC. the pump plungerD. the pump roller2. Which of the two events listed occurs simultaneously in atwo-stroke/cycle diesel engine?A. Exhaust and scavenging.B. Scavenging and compression.C. Ignition and expansion.D. Exhaust and compression.3. Precision engine bearing inserts are manufactured with a smallportion of the bearing ends extending beyond the bearing housing or caps. The installation process of these bearings requires sufficient ______.A. overlapB. crushC. lap or leadD. protrusion4. The ability of a fuel particle to travel into the combustion chamberbefore burning is called _____.A. penetrationB. permanenceC. turbulenceD. atomization5. As for turbine oil, contacting with water in the form of steam willbe inevitable so good ______ properties will be essential. A. defrosting B. de-oiling C. demulsifying D. dehumidifying6. An additive used to improve the ability of a lube oil to reducefriction is known as a/an ______.A. suppressant additiveB. dispersant additiveC. extreme pressure additiveD. viscosity improver additive7. Any carbon built up on surfaces must be washed away by ______additives and held in suspension by a ______additive.A. dispersant /detergentB. detergent/dispersantC. dispersant /dispersantD. detergent/detergent8. Vee-type engines have the connecting rods from two cylindersconnected to each ______of the crankshaft.A. throwB. webC. main bearingD. deflection第 2 页共9 页9. A supercharged engine differs from an un-supercharged engine______it operates at an increased pressure.A. in whichB. on whichC. at whichD. in that10.The ___ engine is used for alternators and sometimes for mainpropulsion with a gearbox to provide a propeller of between 90 to 120 rpm..A. four-strokeB. two-strokeC. slow speedD. reversible11.The most common contaminate of governor hydraulic fluid is______.A. moistureB. dirtC. acidD. air12.A governor automatically controls engine speed by regulating the______.A. fuel supplyB. firing orderC. engine loadD. oil level13.A vane pump belongs to ______according to its working principle.A. reciprocating pumpB. positive displacement pumpC.centrifugal pump D. centripetal pump14.The ______pump is usually used as the lubricating oil pump.A. turbineB. screwC. vaneejectorD. centrifugal 15.If you were operating a centrifugal water service pump with wornwearing rings, the ______.A. pump would be very noisyB. pump would vibrate excessivelyC. pump would develop insufficient flowD. stuffing box would leak excessively16.A ______in the air delivery line near to each compressor isessential.A. butterfly valveB. globe valveC. gate valveD. non-return valve17.______the moveable plate and floating ring inside the pump isvery difficult.A. Having adjustedB. Being adjustedC. To adjustD. Adjusted18.In its simplest form the pressure reducing valve is opened orclosed by ______which is balanced by the downstream pressure acting on a diaphragm.A. adjusting a nutB. a pre-tensioned springC. any springD. upstream pressure19.Before an auxiliary boiler is shutdown for an extended period oftime, the water in the boiler should have a pH value of ______.A. 10B. 7C. 4D. 1HNKJ/C4/0701-1620. The exhaust boilers are used to recover some of ______carried inthe exhaust gas from the main engine.A. waterB. oilC. heatD. steam21. Fins are installed on the generating tube surfaces in waste heatboilers to ______.A. prevent soot fires in the exhaust systemB. prevent exhaust gas erosion of the tubesC. increase the velocity of exhaust gas flowD. increase the rate of heat transfer22. The ______is not a component of an oil separator.A. sliding bowl bottomB. gravity discC. separating discD. scum valve23. The ______of the gravity disc is too big. It cause oil to flowthrough the water outlet. We changed the disc and no oil is found in the water outlet.A. gravityB. diameterC. bowlD. cylinder24. The ______is fitted on an oily water separator.A. sliding bowl bottomB. gravity discC. bowlD. liquid level detector25. The oil sludge is burnt in the ______onboard. I‟ll show you the ashes. A. boiler B. main engine C. auxiliary engine D. incinerator26. Which of the listed burning materials would be described as aclass … B ‟ fire?A. AcetyleneB. Lube oilC. GreaseD. All of the above27. ______unit is mounted so as to raise and lower the cable from thespurling pipe, which is at the top and center of the chain or cable locker.A. The cable lifterB. The hoisting motorC. The topping wireD. The life-raft28. The ______belongs to the anchor handling equipment.A. chain lifterB. winch barrelC. slewing rimD. warping drum29. If a hydraulic pump is overheating, the cause may be ______.A. excessive internal leakage in the pumpB. low discharge pressure and fluid flowC. excessive fluid level in the hydraulic reservoirD. operation of the pump at 100% efficiency30. Less scale formation occurs in a flash evaporator than in asubmerged tube evaporator because ______.A. the distillate produced has greater purityB. no boiling occurs on heat transfer surfacesC. evaporation occurs at a higher rateD. the incoming feed is at a higher temperature第 4 页共9 页31.Which of the following descriptions best identifies the operatingprincipal of a flash-type evaporator?A. Sea water is heated to boiling temperature while under avacuum.B. Sea water is passed over heated plates in a thin film.C. Heated sea water is injected into a vacuum chamber.D. Sea water is forced through a heated eductor.32.The ______stage air compressors are widely used on board theship.A. singleB. IIC. IIID. multiple33.Sludge may form in the crankcase of an air conditioningcompressor as a result of ______.A. bubbling refrigerantB. overheating and oxidationC. lowered operating temperaturesD. reducing the cloud or flash point34.A feeler or thermal bulb is used for the expansion valve to ______.A. detect the temperatureB. detect the pressureC. heat the refrigerantD. accelerate the refrigerant35.When adding oil to a refrigeration system, precautions must betaken to ensure that ______.A. the compressor suction pressure is not too highB. all air is purged from the pump and charging fittingsC. the high pressure cutout switch is held open to preventaccidental startingD. the condenser is completely shutdown first36.“Flooding back” is a condition where the liquid refrigerant ______.A. vaporizes in the condenserB. reaches the compressor through the suction lineC. flashes in the liquid lineD. condenses in the receiver37.Zinc rods are installed on the ______in the refrigeration system.A. liquid strainerB. liquid receiverC. saltwater condenserD. evaporator38.The division of kilowatt load between two paralleled alternators isdetermined by the ______.A. amount of field excitation of the leading machineB. load-speed characteristics of the governorsC. amount of field excitation to the lagging machineD. type of alternator39.A constant output voltage from an AC generator is maintained bythe ______.A. prime mover governorB. exciter generatorC. voltage regulatorD. reverse power relay40.Universal motors will operate on AC or DC current, and aregenerally found in ______.A. portable toolsB. large pump motorsC. turbo electric main motorsD. forced draft fansHNKJ/C4/0701-1641. The diesel engine consumes considerably less fuel than the steamengine for equal output, ______enables a motor-ship to load more cargo. A. why B. which C. in which D. on which42. Power transformers are rated in ______. A. kilowatts B. ampere-turns C. kilowatt-volts D. kilovolt-amperes 43. The operating medium for control systems may be ______. A. compressed air B. hydraulic oilC. electricityD. all of the above44. The jacket water temperature in a diesel engine closed freshwater cooling system is normally controlled by ______. A. regulating the level of corrosion inhibitor in the primarycooling system B. the level of the freshwater expansion tank C. varying the engine load to meet temperature requirements D. the operation of the thermostatic valve 45. To correct a hunting problem in a main propulsion diesel engine hydraulic governor, you should ______. A. increase the governor oil pressureB. adjust the speed droop settingC. adjust the speeder spring travelD. adjust the compensating needle valve 46. Electrical leads and insulation on a motor should be painted with______. A. heat-resisting acrylic B. heat-resisting aluminum C. insulating varnish D. insulating white lead47. An ohmmeter can be used to measure ______. A. current flow in a circuitB. voltage between two points in a circuitC. resistanceD. power48.Engine protection by means of an alarm or shutdown control can be obtained with devices that are sensitive to ______. A. temperature B. pressure C. engine speed D. all of the above49. The first requirement for logical trouble shooting of any system is the ability to ______. A. collect all available data on a casualty B. recognize normal operation C. identify the probable cause of a symptom D. isolate the faulty component50. In order to inspect both piston and cylinder wall thoroughly, the cylinder cover should be taken off and the piston should be ______. A. craned out B. rolled out C. lifted out D. turned out第 6 页共9 页51.In a diesel engine, an extremely leaking exhaust valve can cause______.A. misfiringB. pre-ignitionC. interrupted scavengingD. reduced scavenging52.Sacrificial zinc anodes are used on the saltwater side of dieselengine 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 surfaces53.Poor combustion in a diesel engine can be caused by ______.A. high compression pressureB. low intake air temperatureC. low exhaust pressureD. high scavenge air temperature54.Any increase in the exhaust back pressure of a four-stroke/cyclediesel engine will ______.A. reduce engine horsepower outputB. aid in silencing the exhaust noiseC. increase the mean effective pressureD. contribute to effective cylinder scavenging55.If the jacket water temperature of an operating diesel enginesuddenly rises above normal, the cause can be attributed to______.A. an overfilled expansion tankB. excess chromate treatment of the jacket waterC. a clogged raw water sea suctionD. cavitation erosion of the heat exchanger tubes56.The bearing cap and shell are replaced and tightened up until______.A. the “ nip “ is zeroB.the “ nap “ is zeroC.the “ gap “ is correctD.the “ clearance “ is correct57.______, the engine must be stopped immediately.A. Should knocking occurB. If knocking occurC. Should if knocking occursD. If occur knocking58.Each journal and pin should be examined for ______and grooving.A. bridgesB. recessesC. rearsD. ridging59.Which of the motors for the devices listed below is fitted with aninstantaneous overload relay?A. FanB. PumpC. WinchD. Machine tool60.A centrifugal pump can‟t supply water after starting. You shouldcheck the ______.A. discharge valveB. power supplyC. packing glandD. bearing lubrication61.A built-up exhaust valve is one in which ______.A. the stem and heads are made of different materialB. low-alloy steel is used throughoutC. a replaceable valve disk is welded to the headD. the self-centering action comes from motion of the valve stemin the guideHNKJ/C4/0701-1662. It is well known that the whole power distribution of the ship‟selectrical services mainly depend on the ______. A. sub-boards B. main switchboardsC. emergency switchboardsD. distribution boards63. Oil mist detectors are usually used on board to detect oil mist density within ______. A. the engine crankcase B. the engine scavenge boxesC. drain tanksD. fuel tanks64. The ______is used to measure power. A. ammeter B. voltmeterC. wattmeterD. frequency meter65. Keep compartment ______as the gas given off can be dangerous. A. well ventilated B. well clean C. in good order D. more room66. The value of GM still remains one meter, meanwhile we can pump the ballast water to ______the ship on the even keel. A. make B. put C. keep D. get 67. We have stayed at Shanghai port for a long time. The fouling on the ship‟s hull greatly increases her ______. A. power B. speed C. resistance D. thrust force 68. The conventions under which the port state control inspection is carried out include all the following except ______. A. SOLAS 74 B. MARPOL 73/78C. STCW 78/95D. ISM Code 69. The auxiliary steering gear must be capable of being brought speedily into operation and be able to put the rudder over from 15 degrees on one side to 15 degrees on the other side in no morethan ______with the ship at its deepest service draught and run ahead at the greater of one half of the maximum service speed or ______. A. 28 seconds/7 knots B. 28 seconds/14 knots C. 60 seconds/7 knots D. 60 seconds/14 knots70. Tell your men ______the rules and procedures of working when dismantling the equipment. A. not to go against B. don‟t go againstC. not go to againstD. to not go against71. Which of the listed classes of fire is considered as one involving electrical equipment?A. Class … A ‟B. Class … B ‟C. Class … C ‟D. Class … D ‟ 72. After a fire has been extinguished in a closed space, personnelmay safely enter the space when ______. A. smoke density has been decreased sufficiently to see the bulkhead opposite the compartment's entrance B. a lifeline and explosion proof flash light are usedC. all smoke and toxic fumes are removed and an adequateoxygen supply is present第8 页共9 页D. overhaul has been completed to remove any possible source ofre-ignition73.Under the provisions of applicable international conventions, theofficers to conduct port state control inspection must be dulyauthorized by ______.A. the companyB. the Government of the countryC. the organization recognized by the AdministrationD. the IMO74.During inspection of oil and oily mixtures from machinery spaces,which of the following factors should be taken into account by the PSCO?A. The quantity of oil residues generated.B. The capacity of sludge and bilge water holding tank.C. The capacity of the oily water separator.D. All of the above.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：The electrical remote control system is commonly used in modern steering installations since it uses a small control unit as transmitter on the bridge and is simple and reliable in operation.The control box assembly is mounted on the steering gear.Movement of the bridge transmitter results in electrical imbalance and current flow to the motor in the control box. The motor drives, through a flexible coupling, a screw shaft, causing it to turn. Ascrew block on the shaft is moved and in turn moves the floatinglever to which a control rod is attached. The control rod operates the slipper ring or swash plate of the variable delivery pump. Acut-off lever connected to the moving tiller will bring the floating lever pivot and the lever into line at right angles to the screw shaft axis. At this point the rudder angle will match the bridge leverangle and the pumping action will stop. For local manual control, the electrical control is switched off and a small hand-wheel isconnected to the screw shaft. Rotation of the hand-wheel willmove the floating lever and bring about rudder movement asdesired.75.This passage is mainly on ______.A. the electrical remote control of main enginesB. the electrical control equipment of steering gearsC. the bridge remote control of main enginesD. the control box assembly in steering gear compartment76.The advantage of the control equipment is ______.A. that the transmitter is on the bridgeB. that local manual control can be achieved.C. that remote control cab be achieved.D. simple in construction and reliable in operation.77.The function of the cut-off lever is ______.A. to provide electrical signalB. to provide feed-backC. to provide local manual controlD. to provide right rudder angle78.Another name for the “swash plate” in the variable delivery pumpis ______.A. tiltable discB. gravity discC. distributing discD. catch plateHNKJ/C4/0701-16。

三管轮考试48期轮机英语试卷及答案

三管轮考试48期轮机英语试卷及答案轮机英语第45期1.These acid residues must be prevented from entering the crankcase otherwise the lube oilwould be _______A. contaminated B .emulsified C deteriorated D .oxidated2. The ratio of the brake horsepower to the indicated horsepower of a diesel engine is its_______A. thermal efficiencyB. mechanical efficiencyC. brake thermal efficiencyD. volumetric efficiency3. The cetane number of a diesel fuel oil medicates its _________A. viscosityB. acid contentC. heating value4. The greatest turbulence in a diesel engine cylinder is created by the ________A. shape of the combustion chamberB. fuel injection spray patternC. cylinder swept volumeD. degree of penetration of the fuel oil droplets5. The projection on a shaft designed to change circular motion into up and down or back andfore motion is called ______A. wheelB. crankshaftC. running gear6. A clearly visible benefit of RT-flex engines is their ________operation at all ship speeds.Thisis achieved by the superior combustion performance.A. shocklessB. smokelessC. no vibration D noiseless7. A main bearing consists of two shells which are secured by means of studs and______A. tie rodsB. through boltsC. lead wiresD. bearing caps8. Compared to four-stroke/cycle engines, two-stroke/cycle diesel engines have the disadvantageof _________A. less even torqueB. higher cylinder head temperaturesC. fewer power strokes per revolutionD. greater weight/size requirements9. ________controls the fuel oil temperature in order to provide oil at the correct viscosity forcombustionA. The viscosity regulatorB. The temperature controllerC. The flow meterD. The pressure switch10. A lubricant often has to perform many duties in any situation,in addition to its fundamentaljob of __________A. resisting oxidizationB. reducing frictionC. promoting moving speedD. developing inertia11. Shaker, circulation, and spray are the three general methods used in _______A. pre-injection fuel oil treatmentB. lube oil filtrationC. lube oil purificationD. piston cooling12. Which of the diesel engine components listed increases air density and helps to improveengine operating efficiency?A. ImpellerB. Air bottleC. Air cooler D Exhaust diffuser13. Each cylinder has one starting valve which is usually opened by air pressure and closed by__________.A. nuts and boltsB. new jointsC. spring forceD. sealing rings14. Which of the listed governor characteristics will greatly affect the load sharing relationshipbetween paralleled diesel generators?A. SensitivityB. PowerC. Speed droopD. Compensation15. A pyrometer is an instrument commonly used to measure_______.A. cylinder pressureB. flame intensityC. exhaust gas temperatureD. crankshaft axial alignment16. After starting a diesel engine, which of the listed operating conditions should be checked first?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 ofcompressor air pipelines.A. a flame trapB. a relief valveC. a fusible plugD. a bursting cap18. Great care is dedicated to the removal of ______from the scavenge air.A. gravityB. viscosityC. densityD. humidity19. Lubrication for the main reduction gears used with dieselengines is usually supplied by ____A. oil from the main engine sumpB. an independent lube oil systemC. the stern bearing head tankD. the stern bearing sump tank20. The maximum pressure developed by a waste heat boiler is determined by the main engineexhaust ______.A. gas compositionB. gas temperatureC. pressureD. timing21. The _____ is fitted in pair one is the main valve the other the auxiliary or standby.A. main steam stopB. auxiliary steam stop valveC. feed check or control valveD. blow down valve22. Improper maintenance of the fuel oil burners in an automatically fired auxiliary boiler, couldresult in _______.A. increased fuel consumptionB. increased feed-water consumptionC. fuel pump failureD. combustion control system failure23. Burner ignition failure in an automatically fired auxiliary boiler would be caused by _____A. a burned out solenoid in the oil supply valveB. high temperature excess airC. incorrectly setting the hot-well dump valveD. an incorrectly positioned burner snubber (缓冲器) relay24. Waterside scale in a fire-tube boiler may cause ______.A. increased heat transferB. fireside erosionC. high steam demandD. overheated tubes25. Throttling in the ________ line of a centrifugal pump involves the risk of the pump cavitationA. suctionB. exhaustC. pressureD. discharge26. Centrifugal pimp can be designed with a number of impellers _____ to attain a high finaldelivery pressure.A. at two ends of the same shaftB. opposite each otherC. parallelD. in series27. Before disconnecting a joint in a pipeline, you should _______.A. determine the size of the gasketB. hang a bucket under the jointC. have a first aid kit on handD. be sure no pressure exists in the line28. To thoroughly pump out the bilges using 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 connection must guide the liquid to the lantern ringsD. stuffing box should not be allowed any water leakage29. Which of the listed conditions can lead to cavitation in a centrifugal pump?A. Vapor pockets formed in the suction flow streamB. Rough casing volute surfacesC. Worn wearing ringsD. Heavy fluid in the flow stream30. Refrigerant entering the compressor of a refrigeration system should be in which of thefollowing conditions?A. Sub-cooled liquidB. Sub-cooled vaporC. Superheated vaporD. Liquid31. ______ is the circulation and refreshing of the air in a space without neccssarily a change oftemperature.A. RefrigerationB. Air conditioningC. VentilationD. Heating32. In a chilled water air conditioning unit using a reciprocating compressor, the refrigeratingeffect 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 compressor33. If a plastic film insulation becomes damaged in air conditioning system,______ may formwithin the film.A. evaporationB. condensationC. liquefiesD. vaporization34. The resistance to the movement of the globule in oily water mixture depends on its size andthe _________ of the fluid.A. pressureB. velocityC. gravityD. viscosity35. Because the flow rate of supply water pump is too large, oily water separator does not workwell. Which of the following is not the reason.?A. the monitoring equipment is out of orde rB. separating effect becomes badC. separating effect becomes bad and inner wall is contaminatedD. inner wall is contaminated36. Which of the following would not be burnt in an incinerator on board.A. waste oilB. waste clothesC. oil ragsD. plastic garbage37. Concerning the incinerator’s operating, which of the followingis not correct?A. scavenging time should be more than 30 seconds before ignitingB. the oil temp erature of waste oil tank is 80~100℃C. first igniting the incinerator with diesel oil, when the temperature of hearth is about 600℃D. the ash from incinerator can be dumped into sea no distance limitation38. _____ are used to digest the sewage to produce innocuous sludge in a biological sewagetreatment plant.A. anaerobic bacteriaB. aerobic bacteriaC. air bubblesD. disinfection chemicals39. A centrifuge arranged to separate two liquids is known as ______.A. an oily water separatorB. a purifierC. a centrifugal compressorD. a clarifier40. A centrifugal fuel oil purifier should be shut down if ______.A. more sealing water is neededB. the over clamp needs tighteningC. the purifier has a bad vibration when startedD. water is discharged from overflow line41.If the bowl of a disk type centrifugal purifier when operated asa separator is not primed, the_____A. 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 disk42. In a two-stage flash-type evaporator, excess brine in the first stage automatically passes_____.A. directly to the second stage feed heaterB. directly overboard through the brine coolerC. into the second stage flash chamberD. into the second stage vapor condenser43. In which of the areas listed would you expect to find the highest salt concentration in a flash evaporator?A. Distiller air ejector cooling mediumB. Saltwater heater dischargeC. First-stage internal feed boxD. Second-stage internal feed box44. Hydraulic control check valve can be used to ____ in the marine hydraulic mechanism.A. control the back pressure of return oilB. lock the oil lines under some conditionsC. permit oil flow with reversed directionD. Second-stage internal feed box45. 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 ring46. The crane is usually mounted on a pedestal to offer adequate ________ to the operator.A. timeB. spaceC. lengthD. visibility47. Which problems can occur if the brake band lining of a wildcat brake becomes excessively worn?A. The driving engine will over-speed.B. The anchor will immediately dropC. The clutch will overheatD. The brake’s effectiveness will be reduced48. _______ with various arrangements of barrels are the usual mooring equipment used on board ships.A. CranesB. WinchesC. CapstansD. Windlass49. 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 oil50. In the design of hydraulic piping and equipment consideration is given to minimize turbulence in the hydraulic fluid as this will cause _______.A. molecular fluid vibrationB. energy lossesC .wide pressure variations D. mechanical damage to control valves51. 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 voltage52. What will be the phase angle relationship of a six-pole, three-phase, rotating field generator?A. 60B. 120C. 180D. 36053. To parallel an incoming machine to a running machine therefore it is necessary to ensure firstly that ________.A. two frequencies must be brought into phaseB. the incoming machine accepts a small amount of loadC. the running machine must be unloadD. both voltages are equal54. The frequency of an alternator is controlled from the main switchboard by adjusting the _______.A. frequency meterB. voltage regulatorC. governor controlD. sychroscope switch55. ______ is provided to alternators, in the event of prime mover failure to ensure that the alternator does not act as a motor.A. Reverse current protectionB. Reverse power protectionC. Synchronising deviceD. Frequency meter56. _______ is used to control, modulate, monitor and protect generator set.A. Control panelB. Load panelC. Paralleling panelD. Busbar57. 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 bus58. The ground terminal of a starter should be connected to ________.A. the common ground pointB. the starter’s frameC. the communicatorD. the starter’s mounting bolt s59. Which of the electrical properties listed will always be the same for each component in a parallel circuit?A. ImpedanceB. CurrentC. ResistanceD. Voltage60. In a series circuit, which value will remain unchanged at all places in the circuit?A. V oltageB. CurrentC. ResistanceD. Inductance61. In an alternating current electrical system, a low system power factor is a direct sign of _____A. wasted energyB. efficient operationC. a short in the exciter field windingsD. an excessive number of minor system grounds62. Accidental grounds in a shipboard electrical system must be repaired as soon as possible as they will ________.A. result in immediate power outagesB. damage circuit breakersC. appear on the ground detection systemD. damage insulation and may cause outage63. If the main engine starting consecutively failed _______ times, the cause should be found and the trouble eliminated before next starting.A. 2B. 3C. 4D. 564. The normal color of the exhaust gas of the diesel should be _______.A. achromatism or thin grayB. thin whiteC. sky-blue D black65. After finished with engine, which of the following cannot be shut off by the duty engineer?A. fuel valveB. the main starting valveC. the sea chestD. the main sea water pump inlet valve66. 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 equipment67. A class “C” fire would occur in ________.A. beddingB. pipe insulationC. paintD. a generator68. The most likely place for a fire to start through the process of spontaneous combustion is in _________.A. an electrical switchboardB. the pressure tanksC. the fuel oil tanksD. the oily rag bin69. Which of the fire extinguishers listed is to be weighed annually and sent ashor e for recharging if the weight loss exceeds 10‰of the weight of a full charge?A. FoamB. Soda acidC. Dry chemicalD. Carbon dioxide70. Which of the following components provides a direct source of seawater for the fire main system?A. Rose boxB. Sea chestC. Sluice valveD. Fire pump stuffing box71. When administering artificial respiration, it is of the utmost importance to ________.A. use the mouth-to-mouth methodB. clear airwaysC. use rhythmic pressure methodD. check the injured person’s heartbeat72. Obviously, for a given fuel oil, its pour point is _______ its cloud point.A. lower thanB. higher thanC. as same asD. better than73. ____, where the ship is docked for hull coating renewal, and for any other required underwater work to be carried out, when the opportunity is taken to make other repairs.A. V oyage repairsB. Routine dockingC. Damage repairsD. conversion74. When the dock is refilled with water after docking repair, the first work which should be done by engineer department is ________.A. igniting auxiliary boilerB. releasing air in sea water systemC. starting generatorD. cut off shore power75. The correct tightening is obtained by the use of ______ to measure the extension given to the bolts.A. pressure gaugesB. thermometersC. stretch gaugesD. bridge gauges76. 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 letterA. an International Ship Security CertificateB. an International Oil Pollution Prevention CertificateC. a Safety Management CertificateD. an International Ballast Water Management Certificate78. Which one is not the “clear grounds” for a more detailed inspection?A. the master and the chief engineer are unable to communicate effectivelyB. serious corrosion on the hullC. damaged sanitary pumpD. one page missing in the oil record book79. “Insufficiency of manning or insufficiency of certification of seafarers” is an identification of a ________A. substandard shipB. standard shipC. over-standard shipD. reference ship80. STCW 78/95 Convention shall apply to seafarers _____ on board seagoing ship entitled to fly the flag of a Party.A. servedB. servingC. surveyedD. surveying81. The officer in charge of the engineering _______ the watch to the relieving officer if there is reason to believe that the latter is obviously not capable of carrying out the watch-keeping duties effectively.A. shall take overB. shall not take overC. shall band overD. shall not hand over82. When the order given by bridge may have bad results, the duty engineer should_____A. inform the captain for a further considerationB. inform the captain, and not perform itC. stop the M/E immediately, and then inform the chief engineerD. stop the M/E immediately, and then inform the captain83. The scuppers should be plugged _____.A. only if fixed containment is not usedB. only if portable containment is not usedC. only if fixed containment drains are openD. whenever the vessel is being bunkered84. If it becomes necessary to pump bilges while a vessel is in port, which of the following procedures should be followed?A. Pump only if the discharge is led to a shore tank or bargeB. Pump only during the hours of darknessC. Pump only on the outgoing tideD. Pump only as much as is necessary85. The SOLAS convention prescribes that in the fire fighting drill the duty engineer should start the fire pump and supply deck water in _______ minute(s)A. 5B. 3C. 2D. 186. According to the ISM CODE, the “person”in the phrase “to designate a person or persons ashore having direct access to the highest lev el of management” refers to ________.A. the manager of the shipping companyB. the master of the shipC. the designated person on board shopD. the designated person ashore87. In order to strengthen maritime security and prevent and suppress acts of terrorism against shipping, a new, comprehensive security regime for international shipping was set to enter into force in July 2004. The new regime is ________.A. ISM CodeB. ISPS CodeC. FSS CodeD. IBCC Code88. In the voyage, when carrying out abandon ship drill, ________ should be test every time.A. the emergency lighting system for muster and abandon shipB. air/oil emergency shut-downC. M.E. emergency operationD. main/auxiliary steering gear changing二．关联题（关联题干下有4个小题，每小题4个选项）第一组Scavenge port inspection provides useful information about the condition of cylinders, pistons, and rings, at low expense. The inspection consists of visually examining the piston, the rings and the lower part of the cylinder liner, directly through the scavenge air ports To reduce the risk of scavenge box fire, remove any oil sludge and carbon deposits in the scavenge air box and receiver in connection with the inspection.The port inspection should be carried out at the first stop after a long voyage, e.g. by anchoring if possible, to obtain the most reliable result with regard to the effectiveness and sufficiency of the cylinder lubrication and the combustion cycle (complete or incomplete)A misleading result may be obtained if the port inspection is carried out after arrival at harbor, since manoeuvring to the quay and low-load running, e.g. river or canal passage, requires increased cylinder oil dosage, i.e. the cylinders are excessively lubricated, Further, during low load, the combustion ccle might not be as effective and complete as expected, due to the actual fuel oil qualities and service (running) condition of the fuel injection equipment. It is highly recommended to take this information into consideration.89. The components of an engine involved in normal scavenge port inspection comprise _______.①the piston ②piston rings ③the lower part of the cylinder liner④the fuel injectorA.①②B. ①②③④C. ②③D. ①②③90. If the scavenge box had too much oil sludge and carbon deposits, what would occur?A. excessive cylinder oil consumptionB. the scavenge box fireC. the crankcase explosionD. excessive wear of the cylinder liner91. In order to obtain the most reliable result with regard to the effectiveness and sufficiency of the cylinder lubrication and the combustion cycle, when should the scavenge port inspection be carried out?A. at the first stop after a long voyage, e.g. by anchoring if possibleB. at the first stop after arrival at harborC. at the first stop after low load runningD. at the first stop after passing river or canal passage92. Under what condition that the scavenge pot inspection can gain a misleading result?①after passed through Panama Canal ②after got alongside shanghai quay ③after arrival shanghai roadstead (外锚地)A. ②③B. ①②C. ①②③ D ①第二组Current regulations with respect to the discharge of oily water set limits of concentration 15 parts per million. A monitor is required to measure these values and provide both continuous records and an alarm where the permitted level is exceeded.The principle used is that of ultra-violet fluorescence. This is the emission of light by a molecule that has absorbed light. During the short interval between absorption and emission, energy is lost and light of a longer wavelength is emitted. Oil fluoresces more readily than water and this provides the means for its detection.A sample is drawn off from the overboard discharge and passes through a sample cell. An ultra-violet light is directed at the sample and the fluorescence is monitored by a photoelectric cell Where an excessive level of contamination is detected an alarm is sounded and diverting valves are operated. The discharging liquid is then passed to a slop tank.93. The passage is mainly about ________.A. oily water separatorB. current regulations related to oil pollutionC. oil in water monitorD. the principle of ultra-violet fluorescence94. A monitor can obtain all of the following functions except _______.A. measuring oil content valuesB. providing continuous recordsC. lowering the oil content below 15 ppmD. providing an alarm unit warning of levels of discharge in excess of 15 ppm95. From the passage, we can learn that the ultra-violet fluorescence is a kind of________A. oil sampleB. lightC. photoelectric cellD. alarm unit96. A sample is drawn off from ______ and passes through a sample cellA. bilge waterB. discharge of oil separatorC. slop tankD. discharge of oily water separator。

轮机英语各章节考点试题

1船舶主推进装置（19-20’）1.1船舶动力装置概述1.1.1船舶动力装置的组成和类型及对船舶动力装置的要求1. Each type of engine has its application on board ship. The ____ main propulsion diesel engine operates on the two-stroke cycle.A. low speedB. medium speedC. high speedD. steam speed1.2 船舶柴油机1.2.1 船舶柴油机的基本特性2. The cetane number of a diesel fuel oil indicates its ____.A. viscosityB. acid contentC. heating valueD. ignition quality3. The operation between two fuel injections is called a ____.A. turning cycleB. working cycleC. working hourD. working stroke1.2.2 船舶柴油机的工作原理和基本结构4. The greatest turbulence in a diesel engine cylinder is created by the ____.A. shape of the combustion chamberB. fuel injection spray patternC. cylinder swept volumeD. degree of penetration of the fuel oil droplets5. Because the tie bolts are so close to the crankshaft, some engines employ____ to hold the crankshaft main bearing cap in position instead of conventional studs and nuts.A. through boltsB. jack boltsC. tap boltsD. fitted bolts6. ____for attachment to the propeller shaft also accommodates the turning gear and is integrally forged the crankshaft.A. The coupling flangeB. The camshaftC. The crosshead pinD. The cylinder jackets7. Which of the two events listed occurs simultaneously in a two-stroke \cycle diesel engine?A. Exhaust and scavengingB. Scavenging and compressionC. Ignition and expansionD. Exhaust and compression8. The rotary motion of a diesel engine piston crankshaft is obtained from the up and down motion of the piston via the _____.A. camshaftB. reduction gearsC. rocker armD. connecting or piston rod9. Combustion gases formed in the cylinder of a diesel engine are prevented from blowing past the piston by___.A. cylinder valveB. compression ringsC. piston skirtsD. oil rings10. On a large diesel engine installation, crankshaft axial alignment is maintained by the____.A. piston rod guidesB. engine thrust bearingC. crosshead bearingD. main shaft flexible coupling11. In a two-stroke cycle diesel engine, the process of scavenging begins as the ____.A. piston nears and passes TDCB. latter part of down strokeC. piston passes BDCD. early part of the down stroke1.2.3 船舶柴油机的工作系统、操纵系统和控制系统12._____controls the fuel oil temperature in order to provide oil at the correct viscosity for combustion.A. The pressure switchB. The temperature controllerC. The flow meterD. The viscosity regulator13. A___ ensures a constant pressure at the fuel line.A. transfer pumpB. control air bottleC. pressure regulating valveD. non returning valve14. Oil control rings used in two-stroke cycle diesel engines are located near the bottom of the pistonskirt in order to____.A. increase the liner area covered by the oil filmB. maintain an oil film on the lower liner where scuffing is prevalentC. keep excess oil away from intake and export portsD. help cushion piston skirt side thrust by providing a hydrodynamic oil wedge15. Under normal conditions, the main source of crankcase oil contamination is attributed to____. A. metal particles loosened by wear B. air when air cleaners are not usedC. condensation of water vaporsD. breakdown of the lubricating oil by dilution16. The most common cause of lowering the crankcase lube oil flash point is____.A. with a higher pressureB. at a lower pressureC. no more pressureD. in a greater pressure17. 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 valve18. V ents are led from the engine to ___ for the release of air from the cooling water.A. the cooling jacketsB. the head tankC. the cooling water pumpD. the scavenging box19. On opposite ends of a single shaft of a turbocharger are a gas driven____ and a air compressor, which are sealed each other.A. charge air receiverB. scavenging air beltC. turbineD. air cooler20. The supercharger takes air out of the surrounding atmosphere and then feeds it to the engine’s____.A. inlet valvesB. exhaust valvesC. emergency valvesD. non-return valves21. Each cylinder has one starting valve which is usually opened by air pressure and closed by___.A. nuts and boltsB. new jointsC. spring forceD. sealing rings22. When ____ is operated, a supply of pilot air enables the remote valve to open.A. the distributorB. the air start leverC. the turning gearD. the cylinder air start valve23. A device which functions to bring a diesel engine to a full stop to protect it from damage is known is ____.A. torque limiterB. over-speed tripC. over-speed governorD. load limit governor24. When the rev/min increases, the governor weights move___, causing subsequent motions.A. inwardsB. out wardsC. upwardsD. downwards25. The purpose of an after-cooler is to___.A. reduce the turbocharger operating temperatureB. increase the pressure of the inlet airC. increase the density of the inlet airD. reduce the blower operating temperature1.2.3船舶运行中柴油机的管理26. Thermocouple pyrometers 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 at various locationsD. lube oil at the bearing supplies27. A diesel engine crankcase ventilation system____.A. prevent spark generationB. removes combustible gasesC. determines the level of combustible gasesD. provides inert gas generation in crankcase1.3船舶推进装置1.3.1 船舶推进装置的传动方式28.____ is used to prevent the entry of sea water to the machinery space.A. A special sealing glandB. PropellerC. TailshaftD. Sterntube bearing2船舶辅助机械（30’）2.1 船用锅炉2.1.1 船用锅炉的类型29. In a ___ boiler the water flows through the inside of the tubes while the hot gases pass around the outside.A. water-tubeB. fire-tubeC. exhaust gasD. none of the above2.1.2 船用锅炉的结构特点30. Soot blowers should be used in proper sequence so that____.A. excess stresses will not be set up in the boilerB. the decks will not be covered with sootC. the soot will be swept toward the uptakesD. there will not be a loss of steam pressure2.1.3 船用锅炉的运行管理31. The boiler feed pump discharge pressure is higher than the steam drum pressure to___.A. ensure feed water flow into the boilerB. keep the steam drum pressure highC. prevent the water hammer in the feed lineD. help the feed water flash to steam2.1.4 船用锅炉的故障分析和排除32. A feed pump for an auxiliary boiler might lose suction if the ____.A. boiler water level is lowB. feedwater is too hotC. boiler steam demand is lowD. feedwater is too cold33. Flame failure in an automatically fired auxiliary boiler can from a(an)___.A. incorrect electrode settingB. incorrect nozzle positionC. clogged fuel nozzleD. broken high tension lead2.2 船用泵2.1.1 船用泵的类型34. A vane pump belongs to ____ according to its working principle.A. reciprocating pumpB. positive displacement pumpC. centrifugal pumpD. centripetal pump2.1.2 常见船用泵的工作原理和结构特点35. The amount of fluid delivered by a gear pump can be regulated by_____.A. throttling the pressure lineB. changing the speed of the rotorC. Either A or BD. None of the above is true2.2.3 船舶通用泵系的布置原则和特点36. Which of the valve \s listed will be cycled from the fully open to fully close when the handle is turned 90 degree?A. A rising stem gate valveB. A globe stop valveC. A check valveD. A butterfly valve2.2.4 常见船用泵的运行管理和故障排除37. A spur gear pump should be operated with the discharge valve____.A. slightly openedB. throttledC. fully openedD. halfway opened38. Pitting in the suction areas of a centrifugal pump bronze impeller is usually caused by___.A. cavitationB. electrolysisC. abrasionD. corrosion2.3 船舶制冷和空调装置2.3.1 制冷原理和制冷循环39. Refrigerant entering the compressor of a refrigeration system should be in which of the following conditions?A. Sub-cooled liquidB. Sub-cooled vaporC. Superheated vaporD. Liquid2.3.2 船用空调系统的组成及主要设备40. The process of removing moisture from air is known as___.A. humidificationB. dehumidificationC. vaporizationD. evaporation2.3.3 船舶空调装置运行管理41. As the amount of moisture in the air increases, the difference between the dry bulb and the wet bulb temperature will ____.A. increaseB. decreaseC. remain unchangedD. be greatest at dew point2.4 船舶防污染设备2.4.1 油水分离器的工作原理及运行管理42. Oily water separators are used to ensure that ships don’t discharge oil when pumping out____.A. ballast waterB. boiler waterC. bilge waterD. sewage water43. Where an excessive level of contamination is detected an alarm is sounded and diverting valves are operated. The discharging liquid is then passed to____.A. overboardB. a bilge wellC. a slop tankD. a hot well2.4.2 焚烧炉的工作原理及运行管理44. Which of the following would not be burnt in an incinerator on board?A. waste oilB. waste clothesC. oil ragsD. waste food45. The solid waste was charged into the incinerator through_____.A. the solid waste dump chuteB. an access doorC. the same way for waste oil burnersD. a charging opening2.4.3 生活污水处理装置的工作原理及运行管理46. When anaerobic bacteria convert the sewage to an inert sludge, ____.A. no oxygen is neededB. oxygen is necessaryC. oxygen is given offD. no gas is produced2.5 分油机、空压机和海水淡化装置2.5.1 分油机的工作原理及运行管理47. For a purifier, changing to a gravity disc with larger hole diameter will move the interface towards the _____.A. bowel peripheryB. bowel centerC. upper surfaceD. lower surface48. When finish working on the separator you should ____ firstly.A. cut off the powerB. cut off the oil inletC. open guide water valveD. close oil outlet valve49. Sediment collects in a tubular purifier____.A. on the top coverB. on the discsC. in drain line on the discD. on sides of bowl2.5.2 空压机的原理及运行管理50. Compressed air is supplied by air compressors to____.A. the air receiversB. the starting valvesC. the cylinder coversD. the distributors2.5.3 海水淡化原理51. 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 evaporator52. A salinity indictor is used to determine the ____.A. cause of salt contaminationB. location of salt water contaminationC. chemical makeup of feed-waterD. level of alkalinity in condensate2.6 船舶甲板机械2.6.1 液压泵、控制阀件和油马达的机构特点53. _____ can be used to prevent hydraulic system overload or keep the pressure of oil outlet from pump constant.A. Overflow valveB. Reducing valveC. Balancing valveD. Reducing valve or balancing valve54. Among the basic categories of equipment, which of the following is used to convert hydraulic energy into continuous rotary motion?A. Hydraulic pumpB. V alveC. Hydraulic cylinderD. Hydraulic motor2.6.2 起货机的机构特点及其故障分析和排除55. The oil in a cargo winch gear box should be sampled periodically to____.A. prevent the gear box from leakingB. prevent the oil from becoming inflammableC. make sure it has not become contaminatedD. make sure the motor bearings are lubricated2.6.3 锚机的结构特点及其故障分析和排除56.____are used to handle anchors and chains.A. Cargo winchesB. Mooring winchesC. WindlassD. Cargo hatches2.6.4 绞缆机的结构特点及其故障分析和排除57. Winch gears must be maintained in proper alignment to prevent____.A. overheating of the lube oilB. over speeding of the motorC. wear on the braking systemD. damage to the teeth2.6.5 液压系统的管理58. Before doing any work on the hydraulic system equipped with accumulators, you should____.A. drain any accumulators and purge with oxygenB. bleed off all stored energy from the accumulators completelyC. charge the accumulators to prevent the system energy lossD. pump the hydraulic fluid into the accumulators to prevent fluid loss.59. Hydraulic machinery failures are commonly caused by contamination of the hydraulic fluid and___.A. fluid frictionB. fluid turbulenceC. component misalignmentD. pressure surges3 船舶电气(12’)3.1 船用发电机3.1.1 船用发电机结构特点60. In an alternating current electrical system, a low system power factor is a direct sign of ____.A. wasted energyB. efficiency operationC. a short in the exciter field windingsD. an excessive number of minor system grounds61. With a purely ____ load the voltage and current are in phase, giving a power factor of one.A. inductiveB. resistanceC. combinedD. capacitate3.1.2 船用发电机的并车和解列62. 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 governor settingsD. changing excitation63. The operation of ___ two alternators requires the voltages to be equal and also in phase.A. parallelingB. series-mountingC. runningD. control3.1.3 船用发电机的故障分析和排除64. Accidental grounds in a shipboard electrical system must be repaired as soon as possible as they will___.A. result in immediate power outagesB. damage circuit breakerC. appear on the ground detection systemD. damage insulation and may cause outages3.2 船用配电板的分类及组成、应急配电板、配电箱65. ____ is not a part of the main switchboard on board.A. BusbarB. Load panel of main generatorC. Paralleling panelD. Shore connecting box66. Usually, emergency electricity supplies to____ on board.A. cargo winchesB. windlassC. steering gearD. main air compressor67. Shore power must be ___ during dock repair.A. disconnectedB. switched offC. cut offD. connected3.3 船舶电气设备3.1.1 船舶电气设备概况68. An ohmmeter can be used to measure____.A. current flow in a circuitB. voltage between two points in a circuitC. circuit continuityD. power3.2.2 电气控制设备69.Electrical circuits are protected against overheating by means of a(an)____.A. circuit breakerB. amplifierC. diodeD. capacitor3.2.3 电气设备的运行管理70.Sparking at the brushes of a running motor could be an indication of ___.A. normal operationB. dirty commutatorC. increased brush capacityD. water vapor absorption71. All of the following operating characteristics are listed on the name plates of the motors used on board ship except the ___.A. temperature riseB. horsepowerC. input kilowattsD. operating voltage4 船舶轮机管理4.1操作规程4.1.1 备车72. One hour before sailing, the duty engineer and officer should check____.A. tachometer and engine telegraphB. oil and water reservesC. clock and engine telegraph and test the rudderD. crews4.1.2 巡回检查73. Which of the following item is the cause to the damage of parts and excess wearing?A. overloadB. the odds of the loadC. the default of loadD. overload and the odds of the load4.1.3 完车74. 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 pump4.2 安全管理知识4.2.1 轮机部操作安全注意事项75. To avoid excessive surge pressure when bunkering, you should ____.A. bunker at normal rateB. check for kicks in hoseC. close valves slowlyD. shut valves before topping off4.2.2. 船舶防火防爆的措施及守则76. The most likely place for a fire to start trough the process of spontaneous combustion is in __.A. an electrical switchboardB. the pressure tanksC. the fuel oil tanksD. the oily rag bin4.2.3 机舱应急设备的使用及管理77. 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 fuel oil pumping rateD. stop the fuel oil pumping operation78. As a duty engineer, as soon as you hear the fire and emergency signal, you should ensure that___.A. ring buoys are thrown overboardB. engines are stoppedC. fire pump are startedD. life preserver have been issued to everyone79. Following agrounding, you can best determine that a SLACK fuel oil tank has been holed by ____.A. sounding the tankB. waiting for the vessel to listC. examining tank boundariesD. checking fuel oil strainers4.2.4 船员个人安全知识80. Which one might be used most likely in case of a fire?A. Life jacketB. SCBAC. LifeboatD. Torch4.3 油、物料和备件的管理81. The flash point of a petroleum product is an indication of its____.A. viscosityB. pour pointC. volatilityD. lower explosive limit4.4 船舶修理和检验4.4.1 修理的类别82. ______, where minor repairs are carried out with a ship in service, often during a stay in port. This may be remote from a ship repair site.A. V oyage repairB. Routine dockingC. Damage repairD. Concersion4.4.2. 轮机坞修工程83. When a ship in the dock repairing, engine department should emphasize on the inspection of ____.A. sea valve chest, sea valve, thrusterB. steering and shafting systemC. sea water systemD. fresh water system4.4.3 船舶检验的类别与作用84. The additional mark____ in the Classification Certificate for Machinery means propulsion apparatus is remotely controlled on the navigation bridge control station, and engine assembly control station is unmanned periodically.A. BRCB. MCCC. AUT-0D. AUT-14.5 防污染管理及PSC检查4.5.1 油类记录薄与IOPP证书85. If an incorrect entry were made in the Oil Record Book, you should_____.A. erase the entry and rewrite itB. notify the ship’s officer- in-chargeC. completely black it out and make the correct entry alongsideD. draw a single line through the wrong entry and initial it.86. The valid period of the IOPP on board isn’t more than ____.A. one yearB. two yearsC. four yearsD. five years4.5.2 PSC检查中的明显理由与更详细检查87.If____, the PSCO should proceed to a more detailed inspection.A. the PSCO’s general impression confirm a good standard of maintenanceB. the certificates are validC. the SCO believes the ship doesn’t meet the requirementsD. the PSCO can’t find deficiencies at first glance5 国际公约与规则(13’)5.1 STCW公约5.1.1 STCW78/95公约中有关轮机值班的基本原则88. STCW78/95 states that the officer in charge of the engineering watch is the _____ representative.A. ship-owner’sB. master’sC. chief engineer’sD. manager’s89. At an unsheltered anchorage the chief engineer officer shall consult with the master whether or not to _____.A. do engine repair workB. clean sear water filterC. maintain an underway watchD. take bunkering5.1.2 轮机员的基本职责和道德90. Who is in the charge of the auxiliary boiler?A. The chief engineerB. The second engineerC. The third engineerD. The fourth5.1.3 驾机联系制度91. The bridge should the engine room ___ before passing through congested o shallow waterway.A. 24 hoursB. 2 hoursC. 1 hourD. 15 minutes5.2 MARPOL73/78公约5.2.1 MARPOL73/78公约中有关含油污水的排放规则92. While loading bunkers, you notice oil on the water near the vessel,. What should you do first?A. Stop loadingB. Notify the harbor administrationC. Determine if the vessel is the source of the pollutionD. Start the main engine and put them in gear to disperse the spill93. 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.94. To receive oil residues from the purification of fuel and lubricating oils in the machinery spaces, what kind of tanks should be provided on board?A. Bilge tankB. Sludge tankC. Overflow tankD. Oil collecting tank5.2.2 有关国家、港口的防污染规则95. Disposal of all kinds of garbage but_____ is prohibited within Special Area.A. plasticsB. comminuted or ground papers, rag , glass, metal etc.C. food waste comminuted or groundD. incinerator ash96. When the garbage is mixing with some discharges having different disposal or dischargerequirements, ____ shall apply.A. any requirement appointed by the PSC officerB. the most suitable requirementC. the most stringent requirementD. no requirement5.3 SOLAS 公约5.3.1 SOLAS 公约的基本精神和基本原则97. The SOLAS Convention is the main international convention____.A. about marine pollution preventionB. covering safety of lifeC. about marineD. about ship and port security5.4 ISM、ISPS等规则和公约5.4.1 ISM 规则简介98. In the ISM Code, “company” doesn’t mean___.A. the ship ownerB. the manager or bareboat chartererC. a person assuming the responsibility for ship operationD. a business enterprise dealing with freight5.4.2 ISPS 规则简介99. _____ shall set security levels and provide guidance for protection from security incidents.A. The Contracting GovernmentsB. The Port AuthoritiesC. The masterD. The Company Security Officer5.4.3 其他最新公约和规则100. According to Maritime Labour Convention, 2006, the maximum hours of work shall not exceed__.A. 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。

《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。

2024三管轮理论英语考试真题

2024三管轮理论英语考试真题2024 Three-Tube Wheel Theory English ExamInstructions:This exam is designed to test your understanding of the Three-Tube Wheel Theory, a scientific concept proposed by Dr. John Smith in 2020. Please carefully read the questions and provide detailed answers.Section 1: Multiple Choice (1 mark each)1. According to the Three-Tube Wheel Theory, what is the function of Tube 1?a) Regulating temperatureb) Controlling speedc) Providing stabilityd) Generating power2. Which of the following best describes the relationship between Tube 2 and Tube 3 in the Three-Tube Wheel Theory?a) Tube 2 is dependent on Tube 3b) Tube 3 is dependent on Tube 2c) Tube 2 and Tube 3 are interdependentd) Tube 2 and Tube 3 are unrelated3. In the Three-Tube Wheel Theory, what is the significance of the direction of rotation?a) Determines the efficiency of energy transferb) Indicates the level of frictionc) Controls the speed of the wheeld) Affects the stability of the systemSection 2: Short Answer (2 marks each)4. Explain how Tube 1 contributes to the overall functioning of the Three-Tube Wheel Theory.5. Describe a real-world application of the Three-Tube Wheel Theory and how it can benefit society.6. Discuss the potential limitations or challenges of implementing the Three-Tube Wheel Theory in practical systems.Section 3: Essay (10 marks)7. Dr. John Smith's Three-Tube Wheel Theory has been met with both praise and skepticism since its introduction in 2020. In your opinion, what are the key strengths and weaknesses of thistheory? How do you think it can impact future technologies and advancements in science?Good luck with your exam!。

轮机英语三管轮试题---油水分离器

1591. Oil water separators are used to ensure that ships don't discharge oil when pumping out _____.A. ballast waterB. boiler waterC. bilge waterD. sewage water 1592. 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 for 1593. Emulsification of oil will occur when mixed with _______.A. airB. black oilC. waterD. ice cream1594. In an oily water separator the oil will travel _____ to the oil collecting spaces.A. upwardsB. downwardsC. outwardsD. forwards1595. 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 waterD. by mixed water 1596. A high rate of separation between oil and water is favored by _____.A. large size of oil globuleB. low temperatureC. high viscosityD. high flow rate1597. If a bilge pump failed to build up discharge pressure, you should check for _____.A. excessive water in the bilgesB. a clogged suction strainerC. oil in the bilgesD. All of the above1598. The emergency bilge suction or bilge injection valve is used to prevent _____ of the ship.A. proceedingB. overloadingC. collisionD. flooding1599. All bilge suctions must be fitted with suitable _____, which in the machinery space would be mud boxes positioned at floor plate level for easy access.A. strangersB. relief valvesC. emergency valvesD. strainers1600. 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. extractC. increaseD. decrease1601. In a complete oil/water separator, more oil will separate out onto the underside of these plates and travel outwards until it is flee to rise into the oil collecting space. What's the meaning of "it" in the sentence above?A. a separatorB. oilC. waterD. an oil collecting space1602. 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 out1603. _____ is the breakdown of surface tension between oil droplets in an oil water mixture which causes them to join and increase in size.A. WearB. ContaminatingC. CoalescenceD. Coarse separating 1604. Here some oil in the oily water separator, as a result of its lower _____, will separate and rise into the oil collection space.A. temperatureB. viscosityC. densityD. velocity1605. All bilge suction must be fitted with suitable _____, which in the machinery space would be mud boxes positioned at floor-plate level for easy access.A. strainersB. valvesC. elementsD. separators1606. The oil _____ in the discharging water from oil water separator exceeds 15 PPM without alarm, because the coil was burnt out.A. filterB. holeC. pollutionD. content1607. The remaining oil/water mixture now flows down into the fine separating compartment and moves slowly between the _____ in the Turbulo separator.A. catch platesB. swash platesC. cover platesD. bedplates1608. An oil water monitor is required in order to measure _____.A. the oil content in waterB. the water content in fuel oilC. the water level in bilge wellD. the oil level in bilge well1609. The bilge main is arranged to drain any watertight compartment _____ ballast, oil or water tanks and to discharge the contents overboard.A. more thanB. other thanC. in addition toD. except for1610. Oil water separators are used to ensure that ships don't discharge oil when pumping out _____.A. ballast waterB. boiler waterC. bilge waterD. sewage water1611. Where an excessive level of contamination is detected an alarm is sounded and diverting valves are operated. The discharging liquid is then passed to _____.A. overboardB. a bilge wellC. a slop tankD. a hot well1612. If a bilge pump failed to build up discharge pressure, you should check for _____.A. excessive water in the bilgesB. a clogged suction strainerC. oil in the bilgesD. a closed skin valve1613. The emergency bilge suction valve is typically used _____.A. to inject cleaning additives when the bilges are extremely dirtyB. when the main condenser becomes fouled, in order to provide additional cooling water circulationC. to connect the rose box to the independent bilge suctionD. if the bilges become flooded and they can not be emptied by any other means 1614. A centrifugal bilge pump requires priming _____.A. primarily to lubricate the shaft sealsB. due to the inability of this type of pump to lift water to cover the suction (eye) of the impellerC. to initially unload the pump by having its head pressure equal to discharge pressureD. in order to overcome the potential energy of water in the discharge line1615. The ability of an oil to separate cleanly from an oil and water mixture is referred to as its _____.A. precipitation numberB. neutralizationC. pour pointD. demulsibility1616. The bilge system has been performing well; however, the aft starboard engine room 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 is affected.1617. Which pump installation would require an external source of sealing water?A. Main circulator pump jacket water cooling.B. Salt water service pump.C. Auxiliary condensate pump.D. Bilge pump.1618. One of the consequences in continuing to operate a centrifugal bilge pump with the discharge valve closed, is that the _____.A. motor overload will openB. relief valve will openC. pump will overheatD. motor will overheat1619. If an operating bilge pump is developing good vacuum, but is unable to discharge any water, which of the following problems is the most probable cause?A. The wearing rings are excessively worn.B. The suction strainer is clogged.C. The discharge valve is clogged.D. The shaft is worn.1620. If a bilge pump is able to develop vacuum, but is unable to sufficiently pump out the bilges, you would check for all of the following EXCEPT_____.A. the circuit breakerB. for leaks in the suction pipingC. relief valve .is not properly seatedD. the suction strainer1621. An independent bilge suction is required for _____.A. ballast tanksB. sludge tanksC. machinery space bilgesD. cargo hold bilges1622. If a centrifugal bilge pump were continually operated with the discharge valve closed the _____.A. motor overload would openB. relief valve would openC. pump would eventually overheatD. motor would overheat1623. To thoroughly pump out the bilges using a horizontally mounted centrifugal pump, the _____.A. pump must always be primedB. volute must impart a radial and rotary motion of the water suction sideC. connection must guide the liquid to the lantern ringsD. stuffing box should not be allowed any water leakage1624. Bilges may be pumped _____.A. on the outgoing tideB. overboard after darkC. overboard through an oily water separatorD. anytime in an emergency, i.e. main engine lube oil failure1625. If it becomes necessary to pump bilges while a vessel is in port, which of the following procedures should be followed?A. Pump only if the discharge is led to a shore tank or barge.B. Pump only during the hours of darkness.C. Pump only on the outgoing tide.D. Pump only as much as is necessary. 1626. A new ocean going ship of 2000 gross tons having an inoperative oily water separator may dispose of its bilge slops by _____.A. holding its slops onboard until they can be pumped into the city sewer systemB. circulating them through the lube oil purifier to remove water and debrisC. holding its slops onboard until they can be discharged to a shore side reception facilityD. pumping them into a settling tank for separation before pumping the oily water residue overboard1627. An oceangoing ship of 400 gross tons and above must be fitted with a standard discharge shore connection. What is the size of the bolt circle diameter of the shore connection required to transfer oily ballast to a shore side reception facility?A. 125 mmB. 183 mmC. 215 mmD. It depends on outside pipe diameter.1628. Which of the following liquids can ordinarily be discharged overboard without being processed through an oily water separator?A. Cargo tank ballast.B. Segregated ballast.C. Engine room bilges.D. Cargo pump room bilges.1629. The minimum number and capacity of bilge pumps and fire pumps and their dispersement 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 above1630. The principle of separation by which all commercially available oily water separators function is _____ differential between oil and water.A. the temperatureB. the viscosityC. the gravityD. the size1631. The resistance to the movement of the globule in oily water mixture depends on its size and the _____ of the fluid.A. pressureB. velocityC. gravityD. viscosity1632. 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 pipe 1633. The most suitable pump for oily water separator feed duties is_____.A. a reciprocating pumpB. a vane pumpC. a centrifugal pumpD. a triple screw pump1634. To assist separation of low viscosity oils steam coils or electric heaters are fitted ______ of the oily water separator.A. in entranceB. in exitC. in the upper partD. on the outside1635. Which one of the following is not generally recognized as one constitute of bilge water? ______________.A. Oil leaking from tanks inside engine roomB. Engine room cleaning waterC. Water leaking from the separator sludge tankD. Sewage water1636. When bilge water is heated in a holding tank, which one of the following statements is not accurate? ____________.A. The high temperature facilitates primary gravity separationB. Most of the oil and organic solvents are raised to the top layerC. The high the temperature is, the more the top oil will be collectedD. The high temperature has little use on the separation of emulsified oil1637. When discharging bilge water, which criteria must be observed? _____________.A. The requirement for the oil content of bilge water discharged is 15 ppmB. No discharge in sensitive watersC. Any discharge in sensitive watersD. International, national or local requirements have to be observed1638. Which of the following methods might be used as the treatment on emulsified oil? ___________.A. gravity separationB. centrifugeC. CycloneD. Cross-flow membrane filtration1639. What’s the advantage of oily water separator that meets the requirement of MEPC 60(33) over MEPC 107(49)?A. more economicB. larger capacity on oil treatmentC. less costiveD. more capable of separating emulsified oil1640. Which of the following methods might favor oil emulsion in bilge water?A. Raising temperatureB. less use of surfactantC. more use of solventD. polishing device fouling prevention1641. Which of the following methods can remove the non-separable emulsified oil in bilge water?A. gravity separationB. use of adsorbentsC. use of flocculentsD. use of chemical addition1642. Accidental flooding of the engine room bilges by the bilge main is prevented by _____.A stop-check valves installed in the bilge suction manifoldsB using a positive displacement reciprocating bilge pumpC installing eductors in all bilge rose boxesD installing a swing check before each bilge valve。

轮机英语考试大纲(船舶二三管轮) 88分分值分布

轮机英语考试大纲（船舶二三管轮）88分分值分布内容及其章节考点88分１.船舶主推进装置１.１船舶动力装置概述１.１.１船舶动力装置的组成和类型√ 1 １.２船舶柴油机１.２.１基本特性指标√ 2 １.２.２船舶柴油机的工作原理和基本结构√ 5 １.２.２船舶柴油机的工作系统、操纵系统和控制系统√7 １.２.３船舶柴油机的运行管理√ 3 １.３船舶推进装置１.３.１推进装置的传动方式√ 1 ２.船舶辅助机械２.１船用锅炉２.１.１船用锅炉的类型√ 1 ２.１.２新型船用锅炉的结构特点√ 1 ２.１.３船用锅炉的运行管理√ 1 ２.１.４船用锅炉的故障分析和排除√ 2 ２.２船用泵２.２.１船用泵类型√ 1 ２.２.２常见船用泵的工作原理和结构特点√ 1 ２.２.３船舶通用泵系的布置原则和特点√ 1 ２.２.４常见船用泵的运行管理和故障排除√ 2 ２.３船舶制冷和空调装置２.３.１制冷原理和制冷循环√ 1 ２.３.３船舶空调系统的组成及主要设备√ 1 ２.３.５船舶空调装置的运行管理√ 1 ２.３.７船舶空调装置的故障分析和排除√ 1 ２.４船舶防污染设备２.４.１油水分离器的工作原理及运行管理√ 2 ２.４.２焚烧炉的工作原理及运行管理√ 2 ２.４.３生活污水处理装置的工作原理及运行管理√ 1 ２.５分油机和海水淡化装置２.５.１分油机的工作原理及运行管理√ 3 ２.５.２海水淡化原理√ 1 ２.５.３海水淡化装置的主要设备和运行管理√ 1 ２.６船舶甲板机械２.６.１液压泵、控制阀件和油马达的结构特点√ 2 ２.６.２起货机的结构特点及其故障分析和排除√ 1 ２.６.３锚机的结构特点及其故障分析和排除√ 1 ２.６.４绞缆机的结构特点及其故障分析和排除√ 1 ２.６.６液压系统管理√ 2 ３. 船舶电气和自动化３.１船用发电机３.１.１船用发电机的结构特点√ 2 ３.１.２船用发电机的并车和解列√ 2 ３.１.３船用发电机的故障分析和排除√ 1 ３.２船用配电板３.２.１主配电板的分类及组成√ 1 ３.２.２应急配电板√ 1 ３.２.３配电箱√ 1 ３.３船舶电气设备３.３.１船舶电气设备概况√ 1 ３.３.２电气控制设备√ 1 ３.３.３电气设备运行管理√ 2 ４.船舶轮机管理４.１操作规程４.１.１备车√ 1 ４.１.２巡回检查√ 1 ４.１.３完车√ 1 ４.2 安全管理知识４.2.１轮机部操作安全注意事项√ 1 ４.2.２船舶防火防爆的措施及守则√ 3 ４.2.３机舱应急设备的使用及管理√ 1 ４.2.４船员个人安全知识√ 1 ４.3 油、物料和备件的管理４.3.１燃油的管理√ 1 ４.4 船舶修理和检验４.4.１修理的类别√ 1４.4.２轮机坞修工程√ 1 ４.4.４船舶检验的类别与作用√ 1 ４.5 防污染管理及ＰＳＣ检查４.5.１《油类记录簿》与ＩＯＰＰ证书的管理√ 2 ４.5.２ＰＳＣ检查中的明显理由与更详细检查√ 1 ４.5.３ＰＳＣ检查报告和缺陷的纠正√ 1 ５. 国际公约、规则的阅读与理解５.１ＳＴＣＷ公约５.１.１ＳＴＣＷ７８／９５公约中有关轮机值班的基本原则√ 1 ５.１.２轮机员的基本职责和道德√ 1 ５.１.３机驾联系制度√ 1 ５.２ＭＡＲＰＯＬ公约５.２.１ＭＡＲＰＯＬ７３／７８公约中有关含油污水的排放规则√ 1 ５.２.２有关国家、港口的防污染规则√ 1 ５.３ＳＯＬＡＳ公约５.３.２ＳＯＬＡＳ公约的基本精神和基本原则√ 1 ５.４ＩＳＭ、ＩＳＰＳ等规则和公约５.４.１ＩＳＭ规则简介√ 1 ５.４.２ＩＳＰＳ规则简介√ 1 ５.４.３其他最新公约和规则√ 1。

三管轮机考英语真题(1)

1.Generally the function of lubrication is to form of a film of lubricant between any two surfaces that have relative __B___, so that surfaces don’t get touch with each other.A.RatioB.MotionC.GravityD.Density2.____C____ assists to emulsify oil and water into an even emulsion mixture for a fine atomizing of an incinerator.A.A continuous agitationB.An intermittent vibrationC.A continuous vibrationD.An intermittent agitation3.When the machinery spaces are in the periodic unmanned condition, ___C___ shall be immediately available and on call to attend the machinery space.A.the designated surveyor from classification societyB.the designated engineer from shipyardC.the designated duty officer in charge of the engineering watchD.the chief engineer4.____A___ is used to prevent the entry of sea water to the machinery space.A.Sterntube sealing equipmentB.A special sealing glandC.TailshaftD.Propeller5.The ratio of the brake horsepower to the indicated horsepower of a diesel engine is its _____D______.A.volumetric efficiencyB.thermal efficiencyC.Brake thermal efficiencyD.Mechanical efficiency6. A distorted furnace in a fire-tube auxiliary boiler may be the result of _____D___.A.Firing for extended periods in the low fire modeB.Varying the water level above the crown sheetC.Carrying excessive alkalinity in the boiler waterD.Overheating, due to waterside deposits7.When monitoring diesel engine performance, the most useful instrument to use is the _________A_.A.exhaust gas pyrometerB.Fuel flow rate meterC.Dwell-tachometerD.Exhaust gas analyzer8.___A____ are commonly used in mechanical-hydraulic governor to sense engine speeds.A.FlywheelsB.BulksC.Rotating weightsD.Bulbs9.If fuel oil were being discharged from the waste water outlet of a fuel oil disk type centrifuge, operated as a separator, you should _____D____.A.install an additional discharge ringB.remove the discharge ringC.Slow the centrifuge to its properD.re-prime the purifier10.The refrigerant leaves the evaporator of a refrigeration system as a low pressure ___A______.A.Superheated vaporB.High temperature liquidC.Oil saturated liquidD.subcooled liquid11.The International Sewage Pollution prevention Certificate shall be issued for a period specified by the Administration, which shall not exceed ___D_______from the date of issue.A.one yearB.Three yearC.Six monthsD.Five yearsed engine oil may be properly disposed of by _____B______.A.pumping or throwing it over the side in portB.Draining it into the bilgesC.Dumping it in a gasoline fuel tankD.Discharging it to a dockside oil waste station13._____A____ is not installed on the emergency switchboard.A.SynchroscopeB.WattmeterC.AmmeterD.Voltmeter14.An electrical device which employs a stationary armature and a rotating electromagnetic field is used aboard as a _____B______.A.saturable core reactorB.Shlp’s service alternatorC.Three-wire DC generatorD.Magnetic amplifier15.Insulation light is located on __B______of main switchboard.A.Emergency generator control panelB.Load panelC.Main generator control panelD.Paralleling panel16.when accumulated carbon at the air inlet ports of a two-stroke/cycle diesel engine is being removed, you should take care to avoid carbon particles ____A____.A.entering the cylinderB.Becoming lodged under the intake valvesC.Entering lube oilD.Entering the jacket water17. A high viscous fuel will require ____C____ in order to make it flow.A.StirringB.CoolingC.HeatingD.Mixing with lower viscous oil18.It is not necessary for you to check _____A____ to ensure the complete ignition of fuel in the boiler furnace.A.Water level gaugeB.Smoke indicatorC.FunnelD.Burner flame19.As for oil separator, ___A____ contributes to poor separation efficiency and carries over of water into the clean oil outlet.A.A too small gravity discB.The high speed motorC.A too big gravity discD.The high oil temperature20.this arrangement is ____C_____ if the elements are directly connected to one another and the control action takes place without human involvement.A. a manual closed loopB. A manual opened loopC.An automatic closed loopD.An automatic opened loop21.The separation of impurities and water from __B_______ is essential for good combustion of diesel engines.A.lube oilB.Fuel oilC.GreaseD.Turbine oil22.the function of the hydraulic telemotor transmitter used in an electro-hydraulic steering gear system is to _____A______.A.transmit the rudder angle to the bridge indicatorB.Automatically purge all entrained air from the systemC.Prevent the control linkage from striking the stops when har overD.Send hydraulic signals to the receiving unit.23.when the aerobic biological sewage plant is put into operation, the air to __C_________ should be __________.A.settling compartment / pumped in continuouslyB.Settling compartment / supplied at intervalsC.The aeration compartment / pumped in continuouslyD.The aeration compartment / supplied at intervals24.Under ISPS Code, the ship to which it applies has to carry ____D_____.A. a Safety Management CertificateB.An International Ballast Water Management CertificateC.An International Oil Pollution Prevention CertificateD.An International Ship Security Certificate25.Fuel is delivered into the combustion space by ____B______.A. a lubricating systemB.An injection systemC. A cooling systemD.An electric system26.the _________ should be kept running for about half an hour after F.W.E.A.fuel oil pumpB.Air compressorC.Crankcase lubricating oil pumpD.Auxiliary blower27.Which one is the ‘ clear grounds ’ for a more detailed inspection ___A____?A.one of ship’s certificates required is invalidB.No operation procedures for the oil separatorC.Damaged sanitary pumpD.Paint peeling off the uptake28.An exhaust gas bypass is installed on a waste heat boiler in order to __A_____.A.minimize moisture condensation in the boiler gas passages at low loads.B.Recycle exhaust gas to the turbochargerC.Bypass exhaust gas at high loads to prevent excessive back pressure.D.Bypass a portion of the exhaust gas at peak loads for bet efficiency.29.the operating medium for deck crane motors may be ___C___ .A.Steampressed airC.Hydraulic or electricD.The fuel oil30.The time of discharging oil is short, and oily water separator discharges oil frequently. The possible reason is __B_____.A.the screw pump is worn seriously and volumetric (测定体积的) efficiency is decreasedB.The coarse strainer before the pump in suction system is cloggedC.The sensor of low oil level is fully covered by sludge oilD.Bilge suction valve is clogged31. when a vacuum boiling evaporator works, the hot jacket water will pass over the tube stack and _____D__ the sea water passing through the tubes.A. DissipatesB. DisposeC. dissolveD. heat32. which of the following precautions must be taken if an electric immersion heater is used to keep the coolant in a diesel engine warm during the time the engine is secured ? DA. the pressure cap must be removed while the engine is securedB. the coolant temperature must be maintained at 180℃.C. electrical power, to the heater must be secured before the cooling system is drained.D. the thermostatic bypass valves must be manually opened before the engine is started33. the alarm signal for engine room catching fire is a blast of random bell followed by __A___.A. four knocksB. two knocksC. three knocksD. five knocks34. In a ____C__ engine the charge of air in the cylinder before compression commences is above atmospheric pressure.A. contaminatedB. naturally aspiratedC. pressure chargedD. high speed diesel35. the officer in charge of the engineering watch shall ensure that at all times bridge orders relating to changes in ___B___ of operation are immediately implemented.A. fore or aftB. Speed or directionC. ahead or asternD. up or down36. in a two-stroke/cycle diesel engine, the camshaft rotates at ____D__.A. a speed independent of the crankshaftB. twice the crankshaft speedC. half the crankshaft speedD. the same speed as the crankshaft37. what is the application of high-speed diesel engines at sea ? D①They are used for emergency power generation to small applications.②they are used for electrical power generation on board ships driven by medium-speed propulsion engines.③they can be used on tugs, ferries and barges etc. As main engines.A.①②B.③C.②③D.①②③38.At the earliest indication of fire aboard your vessel. You must FIRST __D____.A.fight the fireB.Determine which type of fire is burningC.Locate the fireD.Sound the alarm39.During the diesel engine running period, the water level of F.W expansion tank should normally kept at the ___A___level of glass tube.A.1/2~3/4B.LowestC.HighestD.Above 3/440.in a series circuit, which value will remain unchanged at all places in the circuit ? CA.ResistanceB.VoltageC.CurrentD.Inductance41.Oily water separators are used to ensure that ships don’t discharge oil when __B___ bilge water.A.It pumping outB.Pumping outC.To pump offD.Being pumped42.over-greasing of ball bearings installed on pumps will result in __A___.A.overheating of the bearingB.Reduced corrosion in the bearingC.Increased pump capacityD.Smoother pump operation43.the usual number of single-acting pistons used in a variable stroke axial-piston pump is ___B__.A.5 or 7B.7 or 9C.3 or 5D.9 or 1144.which one has not been specified in the SOLAS Convention ? AA.Standards for the safety of ships onlyB.Standards for the safety of ships as well as peopleC.Standards for the operation of shipsD.Standards for the construction equipment of ships45.in maritime labour convention , hours of rest may be divided into no more than two periods, one of which shall be at least __D___ hour in length, and the interval between consecutive periods of rest shall not exceed 14 hours.A.FiveB.FourC.TenD.Six46.the __B___ transfers the thrust from the propeller to the hull of the ship.A.Thrust shaftB.Thrust blockC.Main engineD.Propulsion system47.Duties shall be so organized by ___D__ that the first watch at the commencement of a voyage and the subsequent relieving watches are sufficiently rested and otherwise fit for duty . A.The duty engineerB.The second engineer officerC.The masterD.The chief engineer officer48.In the event of a small bunker oil spill on deck occurring while bunkering(装燃料，燃料贮存), you should __A____.A.Cover the area with absorbent materialB.Wash down the area with keroseneC.Wash down the area immediately with a fire hoseD.Cover the area with foam49.to stop the running air-conditioner in the winter, we should ___D___.A.firstly close humidifier valve and then stop the fan motor immediatelyB.Stop the fan motor and close Humidifier valve at the same timeC.Firstly stop the fan motor and then close humidifier valve immediatelyD.Firstly close humidifier valve and then stop the fan motor after 30 seconds.50.the burning of ____C__ is a class ‘C’ fire.A.Dunnage(手提物品，日常用品)B.Diesel oilC.Electrical insulationD.Magnesium51.before a marine diesel engine is stared, the cylinders and pistons must be ___D__.A.Cooled to appropriate temperatureB.Ground and polishedC.Opened up and renewedD.Warmed up gradually to appropriate temperature52.which condition doesn’t need to be met when the synchronous generator is under paralleling operation? AA.equal in powerB.The same phase-sequenceC.Equal in voltageD.Equal in frequency53.the principal purpose of an anchor windlass chain stopper is to __C___.A.Absorb the brake thrust of the anchor windlassB.Tie off the warping head linesC.Hold the anchor chain while riding at anchorD.Lock the intermediate clutch shaft to the wildcat54.Sparking at the brushes of a running motor could be an indication of __B___.A.Normal operationB.A dirty commutatorC.Water vapor absorptionD.Increased brush capacity55.the ___A____ requires that maintenance and repair procedures are performed at fixed calendar intervals.A.Periodic maintenanceB.Forced maintenanceC.Conditional maintenanceD.Predictive maintenance56.in a two-stroke engine, the piston consists of two parts, the lower part is named as __D___ and usually made of cast iron.A.Piston grooveB.Piston headC.Piston crownD.Piston skirt57.diesel engine automated control systems may utilize sensing devices of dual function, with sensing ranges providing both alarm and engine shut down capability. which of the key points listed would only require an alarm sensor? CA.Engine over-speedB.Jacket water pressure and temperatureC.Lube oil sump levelD.Lube oil pressure and temperature58.Current measuring instruments must always be connected in ___A___.A.Series with a circuitB.Series-parallel with a circuitC.Delta with the shuntD.Parallel with a circuit59.UMS stands for __D____ in the maritime subject.A.Unit machined spaceB.Ultra much spaceC.Universal medium systemD.Unattended machinery space60.The load sharing characteristics of two diesel generators operating in parallel are mostly dependent on their governor ___D_____.A.speed limit settingsB.Load limit settingsC.Idle speed settingsD.Speed droop settings61.If a centrifugal pump operating with a positive suction head becomes air bound, your first response should be to ___B___.A.Tighten the packingB.Reprime the pumpC.Vent the casingD.Close the discharge62.__D____ is not a part of the main switchboard on board.A.Paralleling panelB.BusbarC.Load panel of main generatorD.Emergency switch panelually ___A___ handles the majority of the correspondence and negotiation needed during transactions of stores and spare parts in the engine department.A.The chief engineerB.The captainC.The chief mateD.The second engineer64.Heavy fuel oils generally have an upper average ash content of 0.1% by weight. Which of the following conditions could be expected if the ash content increases above this amount? D ?A.Excessive oil pumpingB.Glazing of the cylinder linersC.Increased valve wearD.Increased fuel consumption65.___D____ should not undertake any task which will interfere with the supervision duties relating to the main machinery and associated equipment.A.The chief engineerB.The duty deck officerC.The person on a bunker bargeD.The watch keeping personnel66.First aid means ___A___.A.Emergency treatment at the scene of the injuryB.Medical treatment of accidentC.Setting of broken bonesD.Dosage of medications67.The officer in charge of an engineering watch have the knowledge of erm principles, including obtaining and maintaining ______.A.situational awarenessB.Environmental awarenessC.Safety awarenessD.Anti-pollution awareness。

轮机英语真题47期甲类三管轮

轮机英语真题47期甲类三管轮2021年第1期海船船员适任统考试题（总第47期）一、单项选择题1.The ____engine is used for alternators and some times for main propulsion with a gearbo_ provide a propeller of between 90 to 120 rpm.A.four-strokeB.Two-strokeC.Slow speedD.reversible2.The abbreviation "MIP" stand for_____.A.middle indicating pressureB.mean indicated pressureC.Mean indicated pitchD.Middle indicated power3.The cetane number of a diesel fuel oil indicates its_____.A.V iscosityB.Acid contentC.Heating valueD.ignition quality4.In a two-stroke engine the camshaft rotates at____the engine rotational speed.A.HalfB.twiceC.The same speed asD.Four times5.A diesel engine is similar to a gasoline engine e_cept that the former has no_____.A.Cross-headB.CylinderC.Connecting rodD.spark plug6.It is easier to replace a dry cylinder liner than a wet one because______.A.Of the thin wall thicknessB.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 posite wall7.A main bearing consists of two shells which are secured by means of studs and _____.A.Tie rodsB.Through boltsC.Lead wiresD.Bearing caps8.However fast or slow the bustion rate, it is still a _____between carbon, hydrogen, sulph and o_ygen that releases heat.A.Physical deformationB.State e_changeC.Chemical reactionD.Coalescence9.During the fuel injection period, fuel pressure must e_ceed cylinder gas pressure to _____.A.Ensure peration and distribution of the fuel in the bustion chamberB.Ensure the needle valve is flushed clean during each injectionC.Prevent bustion gas blowback into the open needle valveD.Prevent reflected pressure waves when the needle valve closes10.In a diesel engine lube oil system, which of the follog parts should be lubricated first?A.Camshaft bearingMain bearingC.Piston crownsD.Cylinder walls11.In a diesel engine closed fresh water cooling system, the amount of coolant flog through the heat e_changer is controlled by the ______.A.Suction pressure regulatorB.Thermostatic bypass valveC.Sea water temperatureD.Water level in the e_pansion tank12.which of the diesel engine ponent listed increases air density and helps to improve engine operating efficiency?A.impellerB.Air bottleC.Air coolerD.E_haust diffuser13.a large two-stroke/cycle direct reversing diesel engine is to be reversed.Prior to the admission of starting air you must______.line up the engine for restarting with light diesel oilB.Reposition the fuel injection camC.Change the intake and e_haust valve cam positionsD.Place the starting cam in the intermediate position14.Which of the listed governor characteristics will greatly affect the load sharingrelationship between paralleled diesel generators?A.SensitivityB.PowerC.Speed droopD.pensation15.Thermocouple pyrometers are used on large, main propulsiondiesel engines toindicate the temperature of the ______.A.Cooling water leaving each cylinderB.Fuel oil entering the injectorC.E_haust gases at various locationsD.Lube oil at the bearing supplies16.After starting a diesel engine, which of the listed operating conditions should bechecked first?A.Air bo_ pressureB.Lube oil pressureC.E_haust temperaturesD.rawwater pressure17.To shut down a diesel engine after it e_ceeds the set ma_imum speed, which type ofdevice listed should be used ?A.Speed limiting governorB.Over-speed governorC.Over-speed tripD.Over-speed relay18.The treatment of the fuel oils involves storage, heating, filtering and_____.A.CentrifugingB.PressurizingC.AtomizationD.Igniting19.A propeller, in order to operate efficiently, must rotate at a relatively______speed.A.HighB.LowC.FastD.lowlydoc/87379f7131b765ce0508142b.tent heat changes the ___of water.A.physical stateB.TemperatureC.Atmospheric pressureD.Sensiblepressure21.The primary function of a flame safeguard system, as used on an automatically firedau_iliary boiler, is to prevent_____.A.Accidental dry firing and overpressureB.Uncontrolled fires in the furnaceC.E_plosions in the boiler furnaceD.Overheating of the pressure parts22.Improper maintenance of the fuel oil burners in an automatically fired au_iliaryboiler could result in_______.A.increased fuel consumptionB.Increased feed-water consumptionC.Fuel pump failureD.bustion control system failure23.Burner ignition failure in an automatically fired au_iliary boiler would be causedby______.A.A burned out solenoid in the oil supply valveB.High temperature e_cess airC.Incorrectly setting the hot-well dump valveD.An incorrectly positioned burnersnubber relay24.if the feed pump for an au_iliary boiler fails to deliver the feed water to the boiler,the cause may be______.A.High pressure in the boilerB.Abnormally high feed-watertemperatureC.Abnormally high boiler water temperatureD.demand e_ceeding feedpump capacity25.Gear pumps are of positive displacement type pumps because they discharge a nearconstant amount of liquid______pressure.A.Depending onB.In relative toC.Regardless ofD.because of26.A spur gear pump should be operated with the dischargevalves______.A.Slightly openedB.ThrottledC.Fully openedD.Halfway opened27.An independent bilge suction is required for________.A.Ballast tanksB.Sludge tanksC.Machinery space bilgesD.Cargo holdbilges28.To thoroughly pump out the bilges using a horizontally mounted centrifugal pump,the _______.1A.Pump must always be primedB.V olute must impart a radial and rotary motion of the waterC.Suction side connection must guide the liquid to the lantern ringsD.Stuffing bo_ should not be allowed any water leakage29.An inadequate reciprocating bilge pump discharge is most often caused by______.A.Defective safety valvesB.Clogged suction strainersC.Scarred cylinder wallsD.Clogged drain valves30.In a pression refrigeration plant, the hot, high pressure refrigerant gas is cooled by the sea water and bees liquid in the______.doc/87379f7131b765ce0508142b.pressorB.CondenserC.Throttle valveD.Evaporator31.The______only allows for adjustment of temperature in each room by the occupant manually controlling the air volume admitted.A.Central air conditioning systemB.High velocity systemC.Low velocity systemD.Single duct system32.The opening of the humidifier"s valve of air-conditioner should be _____,when the circumstance temperature is raised to above 5~8℃in the ter.A.DecreasedB.IncreasedC.Fi_edD.Closed33.Under normal conditions.The quantity of air circulation bees less and less.What is the reason?A.Dirty delivery ductsB.Too much refrigerantC.The fouling filtersD.High temperature outside34.When bilge water is heated in a holding tank, which one of the follog statement is not accurate?A.The relative high temperature facilitates primary gravity separationB.Most of the oil and organic solvents are raised to the layer.C.The relative high the temperature is, the more the oil will be collectedD.The normal high temperature has little use on the separation of emulsified oil35.If separating effect of the oily water separator is not good, we can improve it by_____.A.Flushing separator with cold waterB.increasing bilge water supply flowC.Heat oily water properlyD.Opening manual oil discharge valve36.Which is the pollution prevention equipment?A.Booster pumpB.EvaporatorC.IncineratorD.Cooler37.When does au_iliary burner of rotary nozzle type incinerator put into use? Ⅰ、when igniting Ⅱ、the waste oil for dealing with is too much Ⅲ、before sping incineratorA.Ⅰ+ⅡB.Ⅰ+ ⅢC.Ⅱ+ ⅢD.Ⅰ+Ⅱ+Ⅲ38.when anaerobic bacteria convert the sewage to an inertsludge,______.A.No o_ygen is neededB.O_ygen is necessaryC.O_ygen is given offD.no gas is produced39.For a I.O.purifier, if the back pressure of the oil outlet is too high, the interface between oil and water in the bowl will______.A.Be interruptedB.Move downwardsC.Move outwardsD.retain original position40.When separating the lube oil without additive, it is usually working with hot water; the aim is to remove _____from it .A.AcidB.Oil sludgeC.Mechanical impurityD.Salinity41.If the bowl of a disk type centrifugal purifier when operated asa separator is not primed the _____.A.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 disk42.Tube leaks in the distillate cooler of a two stage flash evaporator will resultin______.A.Loss of second stage vacuumB.Contamination of the distillateC.Lower feed mfet temperatureD.Contamination of the second stagecondenser43.Small droplets of water entrained in the flashed vapor produced in a flash-typeevaporator, are removed by the ______.A.Spray pipesB.DemistersC.CondensersD.Splash baffles44.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 flow45.Among the basic categories of equipment, which of the follog are used toconvert mechanical into hydraulic energy?A.The hydraulic pumpsB.C.Hydraulic cylindersD.Hydraulic motors46.Cargo handling unit is rated according to the _____to be lifted.A.Cargo craneB.JibC.Safe working loadD.Oil pressure47.The part of the anchor dlass that engages the anchor chain for lifting is calledthe ______.A.Warping headB.Fair leadC.WildcatD.Capstan48.In automatic _____, the ch may be overhauled and wire is paidoff the barrel at aPre-determined ma_imum tension.A.CranesB.C.CapstansD.Mooring ches49.The major source of chemical contaminants in hydraulic fluid is ______.A.Microscopic steel shavingsB.Abrasive wasteC.Anti- o_idant poundsD.O_idation by-products50.Before doing any work on a hydraulic system equipped with accumulators, youshould______.A.Drain the accumulators and purge with o_ygenB.Bleed off all stored energy from the accumulators pletelyC.Charge the accumulators to prevent system energy lossD.Pump the hydraulic fluid into the accumulators to prevent fluid loss51.One factor that determines the frequency of an altemator is the ______.A.Number of turns of wire in the armature coilB.Number of magic polesC.Strength of the mags usedD.Output voltage52.The frequency output of an operating alternator is controlled b the _______.A.Relative speed of the rotor polesB.Number of turns of wire in the armaturecoilC.Strength of the mags usedD.Output voltages53.Prior to closing the breaker when paralleling two ACgenerators ,.Theremended practice is to have the frequency of the ining 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 linefrequency54.If two A.C.Generators are to be operated in parallel, the load is distributed evenly2by______.A.Mens of rheostatB.A balance coilC.Adjusting the governor settingD.Changing e_citation55.The first requirement for logical troubleshooting of ant 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 ponent56.______is(are) not power supplied by main switchboard directly.A.Steering gear and dlassB.Navigation light and radio power panelC.Navigation device power bo_D.Daily fresh water pump57.The emergency generator or emergency battery is connectedto______on most large ships.A.Distribution boardsB.Section boardsC.Emergency switch boardsD.Main switch boards58.______connectors hold best if a wire is accidentally pulled or a connection bees loose.A.Ring typeB.Fork typeC.Spade typeD."Push on, pull off" type59.The primary function of an electric motor is to ______.A.Develop torqueB.Generate high voltagesC.Produce a magic fieldD.Generate high electrical resistance60.puses placed in series with a thermal trip-type circuit breaker are used for ______.A.Time-delay protectionB.Short-circuit protectionC.Short duration surge protection surge protectionD.Sustained overload protection61.Shore power must be ______during dock repair.A.DisconnectedB.Switched offC.Cut offD.Connected62.The operator of electrical motors should keep a constant check on the loads they carry because __________.A.Low loads necessitate frequent insulation cleaningB.E_ceeding nameplate values shortens useful lifeC.Energy is wasted if full loading is not utilizedD.Power factor correction methods are load dependent63.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 polished64.______is a precaution which contributes to avoiding trouble under normal operating conditions.A.Constant inspectionB.Keeping constant loadC.Remaining constant temperatureD.V arying speed65.During ship manoeuvering , when the diesel is sped, which of the follog 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.A tank which has been sealed for a long period of time can be dangerous because _____.A.Steel surfaces consume o_ygen by rustingB.Sealed tanks usually form a vacuumC.Moisture condenses in the tank, displacing the o_ygenD.Most tank coatings give off poisonous vapors in the presence of moisture67.The class of fire on which a blanketing effect is essential toe_tinguish the fire is_______.A.Class "A"B.Class "B"C.Class "C"D.Class "D"68.Fires in escaping flammable gas are quickly brought undercontrol by_______.A.Sping the flow of gasB.Reducing the chemical chain reactionC.Increasing the o_ygen supplyD.Cooling below the autoignition point69.Which of the follog statements is true concerning carbon dio_ide when used as afire e_tinguishing a gent？A.Carbon dio_ide is corrosive when e_posed to fireB.Carbon dio_ide should be lied slowly to a large engine room fireC.Its total cooling effect is far greater than waterD.Its smothering effect is e_cellent for class B fires70.While on watch in the engine room.Y ou hear a continuous sounding of the generalalarm.Which of the follog actions should you take?A.Make an entry en the official logbookB.Open the master control valves on the fi_ed CO2 system.C.Start the fire pump and check discharge pressureD.Secure au_iliary condenser overboard discharge71.To determine that a partment contains sufficient o_ygen to sustain life, youshould use a/an______.A.E_plosimeterB.O_ygen indicatorC.Fresh air indicatorD.Emergency escape breathing devece72.If the overflow tank high-level alarm sounds while the fuel oil tanks are beingped off.The engineer should __________.A.Close the static leg filling valveB.Close the overflow tank filling valveC.Reduce the fuel oil pumping rateD.S the fuel oil pumping operation73.The _______tools is used in precision work to smooth or enlargea slightlyundersized hole.A.Round outB.Round fileC.ReamerD.Hole driller74.During the dock repair, each sea valve seat should be checked and ratified by_____before reassembled.A.Chief engineerB.SurveyorC.The engineerD.the technique personnel ofthe shipyard75.the additional mark_______in the classification certificate for machinery meanspropulsion aratus is remotely controlled on the navigating bridge control station, and engine assembly control station is unmanned periodically.A.BRCB.MCCC.AUT-0D.AUT-176.The oil record book, as a part of the ship"s official logbook, shall be kept on boardand preserved for a period of ______.A.3years after making the first entryB.2years after the last entryC.3months after last entryD.3years after the last entry77.The valid period of the international oil pollution prevention certificate on boardisn"t more than______.A.One yearB.Two yearsC.Four yearsD.Five years78.During the PSC inspection under the provisions of SOLAS 74.Which one may notbe regarded as clear grounds for ships" detainment?3A.failure of the proper operation of emergency generatorB.Insulation of piping including e_haust pipes in engine room contaminated by oilC.Improper operation of bilge pumping arrangementsD.Damaged sanitary pump79."insufficiency of manning or insufficiency of certification of seafarers" is an identification of a _________.A.Substandard shipB.Standard shipC.Over-standard shipD.Reference ship80.STCW 78/95 convention shall ly to seafarers_______on board seagoing ships entitled to fly the flag of a party.A.ServedB.ServingC.SurveyedD.Surveying81.All engineer officers and engine room ratings shall be aware of the serious effects 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 regulations82.When the order given by bridge may have bad results, the duty engineer should______.doc/87379f7131b765ce0508142b.rm the captain for a further considerationdoc/87379f7131b765ce0508142b.rm the captain, and not perform itC.S the M/B immediately, and then inform the chief engineerD.S the M/B immediately, and then inform the captain83.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 solvent84.According to the international regulations concerning the prevention of pollution of sea areas from ships, the disposal into the sea of all plastics is _______.A.WeleB.Admitted in some special sea areasC.ProhibitedD.Acceptable85.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 posing the watch at seaC.To specify minimum standards for ships considering their safetyD.To tell the pany how to go about running their business86.Which of the follog about ISM code is not right?A.It aims to ensure safety at seaB.It aims to avoid damage to the environmentC.It aims to prevent human injury or loss of lifeD.If aims to provide a method to run a pany87.The ship security assessment is an essential and integral part of the process of developing and updating____________.A.The ship security planB.The pany security planC.The port security planD.The national security plan88.In order to limit the introduction of alien species by ship, ______was adopted on 13 Feb,20__4 at the IMO.A.Revised Marpol anne_ⅠB.Revised marpol anne_ⅡC.International convention for the control and management of ships" ballast water and sedimentsD.ISPS 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：Stating Air SystemThe engine is started with pressed air of ma_ 30bar.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 from the staring air bottles is provided with a non return valve and a drain valve.The solenoid valve is electrical(remote control) or manual (on the engine) operated and send after activation a pilot air signal to the main starting air valve.Interruption of the control air doses the main starting air valve.After the main starting air valve is activated the air flows through the flame arresters to 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 staring air valve is operated also the governor booster is energized.The main starting air line is provided of a safety valve.Interlock valve is a safety device to avoid an engine start with engaged turning gear.89.As the engine is started with pressed air, the correct sequence of the follogdevices being activated is______.1.solenoid valve 2.Starting air valve 3.Starting air distributor 4.Main starting air valve.doc/87379f7131b765ce0508142b.ernor boosterA.1,5,4,2,3B.1,4,5,3,2C.1,4,3,2,5D.4,3,1,2,590.inderline sentence "the governor booster is energized" probablymeans___________.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 engine91.Which of the follog ponents 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 distributor92.When the engine is engaged with turning gear, _______can keep the engine fromstarting.A.the control airB.The solenoid valveC.The main starting air valveD.theinterlock valve第二组：（1）The pany should establish procedures to ensure that the ship is maintained in conform the provisions of the relevant rules and regulations and with any additional requirements which established by the pany.（2）In meeting these requirements the pany should ensure that:(2.1) inspections are held at ropriate intervals(2.2) any non-conformity is reported, with its possible cause, if known；(2.3) ropriate corrective action is taken; and(2.4) records of these activities are maintained.(3)The pany should establish procedures in its safety management system toidentify equipment and technical systems the sudden operational failure of which may result in hazardous situations.The safety management system should provide for specific measures aimed at promoting the reliability of arrangements and equipment or technical system that are nor in continuous use.93.This passage concerns ______.A.The inspections of the ship and equipmentB.The reports of non-conformitiesC.The corrective actionsD.The maintenance of the ship and4equipment94.In(2.4) of this passage,"these activities" refers to the follog activities e_cept_________.A.The establishment of any additional requirementB.The corrective action takenC.The inspections heldD.The reporting of any non-conformity95.According to this passage, some particular equipment should have specific measures to promote its 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 pany"s safety management system96.This passage is probably taken from___________.A.The MARPOL conventionB.The STCW conventionC.The ISPS codeD.The ISM code47轮机英语的答案1- 5 ABDCD 6-10 CDAAB11-15 BCBCC 16-20 BCABA21-25 DAABC 26-30 CCABB31-35 DDCDC 36-40 CBACA41-45 CBBBC 46-50 CCDDB51-55 BACCB 56-60 DCAAB61-65 DBBAC 66-70 ABADC71-75 BDCCC 76-80 DDDAB81-88 CABCCDAC 89-96 BDBDDABD 5。

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。

三管轮英语资料

一.Nice to meet you! (很高兴见到你>It’s very nice to meet you!<非常高兴见到你）Glad to meet you!2. What’s your name?<你叫什么名字）Could you tell me what your name is?<能告诉我你叫什么名子吗？）答：I am XXX. 或 My name is XXX. Where are you from? (你是那里人？> 11.How old are you? (你多大？> 答：I am 27 years old.<我27岁）3. When were you born?<你什么时候出生？）答：I was born in nineteen seventy-three.(我1973年出生。

>答：I am from lianyungang.(我是连云港人>4. Are you married? <你结婚了吗？）答：Yes, I am.5. How many people are there in your family?(你家里有几口人？>答：There are three people in my family. My wife, son and I. (有三口人，我的妻子、儿子和我>6. How long have you ever worked on board? (你曾经在船上工作过多长时间>答：I have ever worked on board for ten years.(我曾经在船工作10年>7. Which company did you serve?(你在那家公司服务过？>Which company did you work for?答：I have served for Lianyungang shipping corp.(我在连云港船务公司服务过>8. Are those ships you worked all Chinese ones? (你工作过的那些船是不是都是中国船>？答：No, I worked on Chinese ships about 3 years, and 1 year on board under the Liberian flag.(不我在中国船上工作了三年，在利比里亚的船上工作了一年>9. What is the name of the Liberian ship and what’s her tonnage? (利比里亚船是哪一类船，吨位是多少？> 答：She is a bulk carrier, her gross tonnage is over 30 thousand tonnage.(是一艘散货船，总吨3万多>10. Were the crew all Chinese? (船员都是中国人？>答：No, they wer en’t, including me。