轮机英语期末考试复习资料Word文档下载推荐.docx
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轮机英语期末考试复习资料Word文档下载推荐.docx
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7.Inextremeweatherconditions,eitherhotorcold,controloftheairconditioningplantpresents______difficulties.
A.fewB.littleC.alittleD.less
8.Thetemperatureatwhichwatervaporintheatmospherebeginstocondenseiscalledthe______.
A.dewpointtemperatureB.condensationtemperature
C.psychometrictemperatureD.absolutehumiditytemperature
9.Whenstartingareciprocatingpump,thedischargevalveshouldbe______.
A.closedB.openedfullyC.crackedopenD.partlyopen
10.The______isusedtomeasurepower.
A.ammeterB.voltmeterC.wattmeterD.frequencymeter
11.OneofthemajorfeaturesoftheSTCW95istheadoptionofanewSTCWCode,towhichmany______havebeentransferred.
A.safetyregulationsB.technicalregulations
C.minimumrequirementsD.standardrequirements
12.______usuallyhelpstoinduceairmovementtoassistcombustion.
A.CylindercoverB.Mainbearing
C.TheexhaustvalveD.Thepistonmovement
13.Gearpumpsare______becausetheydischargeanearconstantamountofliquidregardlessofpressure.
A.negativedisplacementtypeB.turbinetype
C.positivedisplacementtypeD.mixed-flowtype
14.Ifarefrigerationsystemwereshortofrefrigerant,theconditionwouldresultin______.
A.continuousrunningofthecompressor
B.highsuctionpressure
C.highdischargepressure
D.shortcyclingofthecompressoronthewaterfailureswitch
15.Thestarformationismostcommonlyusedandrequires______onthealternator.
A.oneslip-ringB.twoslipringsC.threeslipringsD.foursliprings
16.AconstantoutputvoltagefromanACgeneratorismaintainedbythe______.
A.primemovergovernorB.excitergenerator
C.voltageregulatorD.reversepowerrelay
17.Priortoanyoverhaulworkonelectricequipment,itisimportanttoensurethecircuitsare______.
A.liveB.deadC.excitedD.online
18.A‘deadfront'
switchboardisone______.
A.withoutswitchesonit
B.withinsulatedswitchesandnoexposedterminals
C.withoutcircuitbreakers
D.withoutsafetyhandrailsnorrubbermats
19.The______isusedtomeasurethevolumeofaliquidorgasthroughapipelinewithinanygivenperiodoftime.
A.flowmeterB.viscometerC.micrometerD.feeler
20.Poorcombustioninadieselenginecanbecausedby______.
A.highcompressionpressureB.lowintakeairtemperature
C.lowexhaustpressureD.highscavengeairtemperature
21.Highexhausttemperatureandblacksmokeexhaustingfromanauxiliarydieselenginecanbecausedby______.
A.engineoverloadB.lowcombustiontemperature
C.pluggedfuelnozzleholesD.excessivecompressionpressure
22.Acentrifugalpumpcan’tsupplywaterafterstarting.Youshouldfirstlycheck______.
A.dischargevalveB.powersupplyC.packingglandD.bearinglubrication
23.TheSOLASConventioninitssuccessiveformsisgenerallyregardedasthemostimportantofallinternationaltreatiesconcerningthe______ofmerchantships.
A.pollutionB.economizationC.safetyD.efficiency
24.Adieselengineissimilartoagasolineengineexceptthattheformerhasno______.
A.cross-headB.sparkplugC.connectingrodD.cylinder
25.Whichisthepollutionpreventionequipment?
A.boosterpumpB.evaporatorC.incineratorD.cooler
26.The______isusedtoburnoilsludge.
A.clarifierB.oil/waterseparatorC.incineratorD.distiller
27.Whattypeofvalveisusedtodirecttheflowofhydraulicfluid?
A.reliefvalveB.directioncontrolvalveC.stopvalveD.pressurecontrolvalve
28.Inageneralcargocrane,______isfittedtoliftthecargoload.
A.theslewingmotorB.theluffingmotorC.thehoistingmotorD.thefanmoter
29.______areusedtohandleanchorsandchains.
A.CargowinchesB.MooringwinchesC.WindlassesD.Cargohatches
30.Currentchangingindirectionandrisingandfallinginvalueis___.
A.D.C.B.A.C.C.generatorD.freshwatergenerator
31.Switchboardsmaybeofthedead-fronttypeinwhichalllivepartsareinstalledbehind______andonlytheoperationhandlesandinstrumentsareonthefront
A.thecapstanB.thecollectorC.thepanelsD.thesurface
32.Theemergencygeneratororemergencybatteryisconnectedto______onmostships.
A.distributionboardsB.sectionboards
C.emergencyswitchboardsD.mainswitchboards
33.Whenundermaneuveringconditionswiththemachinerybeingmanuallyoperatedthecontrolunitorconsoleshouldbe___.
A.automaticallycontrolledB.offpower
C.continuouslymannedD.continuouslyunmanned
34.After“F.W.E.”isgiven,theairsystemisshutdown,the______gearputin,alldrainsandindicatorcocksopened,andthecoolingwaterkeptrunning.
A.steeringB.timingC.turningD.running
35.WhichofthefollowingoperationsmustbeenteredontheOilRecordBookPartI?
I.Routinedischargeatseaofbilgewatercontainingoilfromthemachineryspaces
II.Bunkeringoffueloil
A.IonlyB.IIonlyC.bothIandIID.neitherInorII
36.Atanunshelteredanchoragethechiefengineershallconsultwith______whetherornottomaintainanunderwaywatch.
A.theengineerofficerinchargeofwatch
B.thedeckofficerinchargeofwatch
C.themaster
D.thechiefmate
37.The______engineisusedforalternatorsandsometimesformainpropulsionwithagearboxtoprovideapropellerofbetween90to120rpm.
A.four-strokeB.two-strokeC.slowspeedD.reversible
38.Thedischargeflowofareciprocatingpumpis______.
A.steadyB.inpulsationC.continuousD.large
39.Thecetanenumberofadieselfueloilindicatesits______.
A.viscosityB.acidcontentC.heatingvalueD.ignitionquality
40.Camshaftsareusuallydrivenbytiminggearsor______.
A.pushrodsB.chaindrivesC.rockerarmsD.flywheels
41.Thegearandscrewpumpsareclassifiedas______.
A.variablestrokepumpsB.multistagepumps
C.positivedisplacementpumpsD.triple-portedpumps
42.Whenstarted,acompleteoilywaterseparatingunitisfirstfilled______.Theoilywatermixtureisthenpumpedthroughtheinletpipeintothecoarseseparatingcompartment.
A.withdirtywaterB.withcleanwaterC.byoilywaterD.bymixedwater
43.Dirtyoilmustbe_____beforebeingusedagain.
A.mixedwithcleanoilB.purifiedC.heatedD.strained
44.Greatcareisdedicatedtotheremovalof_____fromthescavengeair.
A.gravityB.viscosityC.densityD.humidity
45.WhileparallelingtwoACgeneratorsusingsynchronizing(同步的)lampsonly,bothlampswillgodarkwhenthegeneratorsare______.
A.runningatthesamespeedB.grounded
C.ofthesamepolarity(极性)D.inphase
46.Themaingeneratorsareconnectedto______.
A.distributionboardsB.sectionboards
C.emergencyswitchboardsD.mainswitchboards
47.Theoperationof_____twoalternatorsrequiresthevoltagestobeequalandalsoinphase.
A.controlB.series-mounting
C.runningD.paralleling
48.______isamachinebywhichelectricalenergyistransformedintomechanicalenergy.
A.AnalternatorB.Anelectricmotor
C.AdieselengineD.Amainswitchboard
49.Bridgeordersmustbe______andarecordofanyrequiredchangesinspeedanddirectionshouldbekept.
A.slowlycarriedawayB.carriedoutwithaperiodofdelay
C.promptlycarriedoutD.paidbythecaptain
50.Aftertheorder'
______'
isgiven,theairsystemisshutdown,theturninggearputin.
A.FinishedWithEngineB.StopTheEngine
C.Stand-byEngineD.Slow-downEngine
51.Obviously,foragivenfueloil,itspourpointis______itscloudpoint.
A.lowerthanB.higherthanC.assameasD.betterthan
52.OilRecordBookPartIshallbeprovidedto______.
A.everyoiltanker
B.everyshipof400tonsgrosstonnageandabove
C.everyship
D.anyship
53.Whendecidingthecompositionoftheengineeringwatch,whichmayinclude_____appropriately,manyfactorsshallbetakenintoaccount.
A.satisfiedengineersB.qualifiedratings
C.satisfiedchiefengineerD.qualifiedchiefengineer
54.Accordingtotheinternationalregulationsconcerningthepreventionofpollutionofseaareasfromships,thedisposalintotheseaofallplasticsis______.
A.welcome
B.admittedinsomespecialseaareas
C.prohibited
D.acceptable
55.ThemainobjectiveoftheSOLASConventionistospecify______fortheconstruction,equipmentandoperationofships,compatibletheirsafety.
A.atmostreferencesB.atleastreferences
C.maximumstandardsD.minimumstandards
56.______theengines,thedieselengineis______usedengineonboard.
A.Between/morecommonlyB.Among/themostcommonly
C.Between/notmorecommonlyD.Among/notthemostcommonly
57.______controlsthefueloiltemperatureinordertoprovideoilatthecorrectviscosityforcombustion.
A.TheviscosityregulatorB.Thetemperaturecontroller
C.TheflowmeterD.
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