甲类三管轮机英语考试真题Word格式文档下载.docx

甲类三管轮机英语考试真题Word格式文档下载.docx

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uniflow,'

crossflow,'

and'

return-flow'

aretermsusedtodescribevarioustypesof______.A.controlaircircuitsB.superchargingC.turbochargersD.scavenging

【单选】ADCgeneratorisusedtosupplydirectcurrentinordertomaintainanACgeneratorfieldandisknownasa/an______.A.rotorB.statorC.exciterD.armature

【单选】Acentrifugearrangedtoseparatetwoliquidsisknownas_____.A.anoilywaterseparatorB.apurifierC.acentrifugalcompressorD.aclarifier

【单选】Acircuitbreakerandafusehaveabasicsimilarityinthattheyboth______.A.canberesettoenergizethecircuitB.shouldopenthecircuitwhenoverloadedC.willburnoutwhenanovercurrentflowdevelopsD.shouldshortthecircuitwhenoverloaded

【单选】Acircuitbreakerdiffersfromafuseinthatacircuitbreaker______.A.meltsandmustbereplacedB.isenclosedinatubeofinsulatingmaterialwithmetalferrulesateachendC.givesnovisualindicationofhavingopenedthecircuitD.tripstobreakthecircuitandmaybereset

【单选】Acircuitbreakeris______.A.adistributiondeviceB.alightingequipmentC.theindicatinginstrumentD.anisolatingswitch

【单选】Acombinationcombustiblegasandoxygenindicatorisaninstrumentthatmeasuresthe_____ofbothcombustiblegasandoxygen;

eachisindicatedonaseparatemeter.A.puritiesB.combinationsC.concentrationD.filters

【单选】Adieselenginewithacombustionchamberlocatedbetweenthecrownsoftwopistonsisknownasa/an______.A.double-actingengineB.opposedpistonsengineC.single-actingengineD.horizontalactingengine

【单选】Afireinvolvingaluminumpowderwouldbeaclass_________.A.'

A'

fireB.'

B'

fireC.'

C'

fireD.'

D'

fire

【单选】Ahydraulicmotormaybedrivenby______.A.anelectricmotorB.adieselengineC.acompressorD.oil

【单选】Amarinedieselengineisstartedby______.A.supplyinghighpressureoilintoahydraulicmotorB.supplyinghightemperatureairintothecylinderC.supplyinghighpressureairintothecylinderD.electricaligniting

【单选】Apositivedisplacementpumpisthatwherethevolumeofthepumpchamberisalternatelyincreasedto___andthendecreasedto___.A.drawtheliquidin/forcetheliquidoutB.forcetheliquidout/drawtheliquidinC.suction/drawD.deliver/outlet

【单选】Apracticalwayofcheckingforexcessivefuelinjectioninonecylinderofanoperatingdieselengineisto______.A.feelthehighpressurefuellineB.checkthecylinderexhaustsforwhitesmokefrequentlyC.checkthecylinderexhausttemperatureD.isolateeachcylinderandinspecttheinjector

【单选】Asegregatedballastsystemisasystemwhere______.A.allballastisprocessedthroughtheoilywaterseparatorB.ballastistakenonanddischargedthroughaseparatemaindeckriserC.ballastandcargotanksareseparatedbycofferdamsD.allballastlines,tanks,andpumpsareindependentofthoseusedforoil

【单选】Asuperchargeddieselengine,whencomparedtoasimilarnaturallyaspirateddieselengine,willdevelopanincreasein______.A.ignitionlagB.enginehorsepowerC.lubeoilsystempressureD.specificfuelconsumption

【单选】Aviscosityregulatorusedforanengineisusuallyprovidedinorderto_____foranengineburningheavyfueloil.A.regulatethefuelsupplyB.maintainaconstantfuelviscosityatthefuelvalvesC.maintainefficientcoolingD.alterthefueldensity

【单选】AccordingtoSTCW,theabilitiesspecifiedinthestandardsofcompetencearegroupedassevenfunctionsatthreelevelsofresponsibility,whichofthefollowingisnotoneofthethreelevels?

A.NavigationallevelB.ManagementlevelC.OperationallevelD.Supportlevel

【单选】AccordingtotheMARPOLCODE,glass,metalandpapermaterialsshould______.A.neverbedischargedintoseaB.bedischargedbeyond12nmfromnearestlandC.bedischargedlimitedin12nmfromnearestlandD.bedischargedtosea

【单选】AccordingtotheSOLASconvention,thebilgewatersystem______A.ThebilgepumpmustconnectthebilgewellsuctiondirectlyB.shouldnotpumpoutthewateraccumulatedinthecargosC.shouldnotbeusedforemergencydrainageincaseofshipcollisionD.shouldbeconnectedtothefirefightingsystemdirectly

【单选】After'

F.W.E.'

isgiven,theairsystemisshutdown,the_____gearputin,alldrainsandindicatorcocksopened,andthecoolingwaterkeptrunning.A.steeringB.timingC.turningD.running

finishedwithengine'

whichofthefollowingcannotbeshutoffbythedutyengineer?

A.fueloilboosterpumpB.themainstartingvalveC.theseachestD.themaincoolingseawaterpump

【单选】Aftertakingonfueloil,thehosesshouldbedisconnectedand______.A.drapedoverthefantailtodryoutB.drainedoverthesideandwashedoutC.drainedintothebilgesandwashedoutD.drainedintobuckets

【单选】Airchambersareusuallyfittedtoreciprocatingpumpsinorderto___.A.increasedischargepressureB.increasesuctionvacuumC.developpulsationflowD.keepasteadyrateofflow

【单选】Allcrew'

sassignedemergencystationscanbefoundontheship'

s______.A.musterlistB.certificateofinspectionC.clearancepapersD.permittoproceed

【单选】Alldetailsoffuelbunkeringorslopdisposalmustbeenteredinthe_____.A.roughlogB.engineroomlogbookC.oilrecordbookD.smoothlog

【单选】Anemergencygenerator,drivenbyaninternalcombustionengine,shallbetestedunderloadforaminimumof2hoursatleastonceevery______.A.weekB.2weeksC.monthD.3months

【单选】Anincineratorauxiliaryburnercannotbeignited.ItisNOTcausedby______.A.carbondepositsontheelectrodesB.defectiveatomizerC.lowoilpressureD.toomuchwaterintheoilsludge

【单选】Anincineratorauxiliaryoil-firedburnerisusedtoignite______.A.thesolidwasteortheoilsludgeB.thesolidwasteonlyC.theoilsludgeonlyD.neitherthesolidwastenortheoilsludge

【单选】Anchorcapstansareusedinsomeinstallationwherethecablelifterrotatesabouta______.A.horizontalaxisB.crankshaftC.verticalaxisD.camshaft

【单选】Asforoilseparator,______contributestopoorseparationefficiencyandcarriesoverofwaterintothecleanoiloutlet.A.AtoobiggravitydiscB.AtoosmallgravitydiscC.ThehighoiltemperatureD.Thehighspeedmotor

【单选】Astheamountofmoistureintheairincreases,thedifferencebetweenthedrybulbandwetbulbtemperatureswill______.A.increaseB.decreaseC.remainunchangedD.begreatestatdewpoint

【单选】Beforedoinganyworkonahydraulicsystemequippedwithaccumulators,youshould______.A.draintheaccumulatorsandpurgewithoxygenB.bleedoffallstoredenergyfromtheaccumulatorscompletelyC.chargetheaccumulatorstopreventsystemenergylossD.pumpthehydraulicfluidintotheaccumulatorstopreventfluidloss

【单选】Beforestartingtheengine,theairbottleshouldbe______.A.pumpedupB.loadedC.dischargedD.closed

【单选】Biologicalsewagewatertreatmentplantworkonthe_____.A.heatingprocessB.settlingprocessC.aerationprocessD.centrifugingprocess

【单选】Cargohandlingunitisratedaccordingtothe_____tobelifted.A.cargocraneB.jibC.safeworkingloadD.oilpressure

【单选】Centrifugalpumps,usedtohandlehotliquids,musthaveaminimumflowthroughthemunderalloperatingconditions.Thisflowservesto______.A.preventoverheatinganddamagetopumprotatingpartsduetorubbingB.maintainthenetpositivesuctionheadofthepumpC.maintainhydraulicdifferentialinthepumpimpellerpassagesD.purgethepumpofnon-condensablevaporsandgases

【单选】Coalescenceisthebreakdownofsurfacetensionbetweenoildropletsinanoil/watermixture,whichcausesthemtojoinand_____insize.A.expandB.extractC.increaseD.decrease

【单选】Combustiongasesformedinthecylinderofadieselenginearepreventedfromblowingpastthepistonby______.A.cylindervalvesB.compressionringsC.pistonskirtsD.oilrings

【单选】Coolingofenginesisachievedbycirculatingacoolingliquidaroundinternal______withintheengine.A.airB.passagesC.pipesD.means

【单选】Dualelectro-hydraulicsteeringunitsusuallyoperate______.A.withbothpumpsonlineatthesametimeB.withonepumponstandbyC.withthefollow-upgeardisconnectedD.onlywhentherudderismovedamidships

【单选】During______thegasesaredrivenoutofthecylinderbythepiston.A.ThesuctionstrokeB.ThecompressionstrokeC.TheexpansionstrokeD.theexhauststroke

【单选】Duringpurification,iftheoperatingwatertankisempty,whichofthefollowingmalfunctionswillappear?

A.Someoilwillflowfromthewateroutletoftheseparator.B.Therewillbesomewaterinthepurifiedoil.C.Someoilwillflowfromthesludgeoutletoftheseparator.D.Ifdischargingthesludge,therewillbenoflushingwater.

【单选】Eachcrankismadeupoftwocrankwebsjoinedbyacommon______towhichthebottomendbearingisfitted.A.throwB.crankshaftC.crankpinD.crosshead

【单选】Eachcylinderlineronthemarinemediumspeedengines_____.A.isusuallycooledbyseawaterB.canbereplacedwhenwornoutC.isindirectcontactwiththewaterintheboreofthecylinderD.can'

texpandwhenheated

【单选】Electricwiresshouldhaveeachfeatureofthefollowingexcept______.A.flameretardantB.moistureresistantC.oilresistantD.lowconductivity

【单选】Enginespeedsatwhichresonancecanoccuraretermed______.A.maximumspeedsB.fullspeedsC.seaspeedsD.criticalspeeds

【单选】Equalpowerfactorsonpara