海船船员-轮机部(航海英语)真题库三

海船船员-轮机部(航海英语)真题库三1/5题[单选题]（江南博哥）Radiationcanspreadafireby_______.Atransmittingtheheatofafirethroughtheship’smetalBburningliquidsflowingintoanotherspaceCheatedgasesflowingthroughventilationsystemsDthetransferofheatacrossanunobstructedspace正确答案:D2/5题[单选题]Thefourbasiccomponentsofafirearechainreaction，heat，fuel，and_______.AcarbonmonoxideBoxygenCcarbondioxideDanygaseoussubstance正确答案:B3/5题[单选题]Thefourbasiccomponentsofafirearefuel，heat，oxygenandachainreaction.Whichofthefollowingstatementsbestdescribeswhatmustbeeliminatedtoextinguishafire？AAnyonecomponentcanbeeliminatedtoextinguishafire.BAnytwocomponentsmustbeeliminatedtoproperlyextinguishafire.CAnythreecomponentsmustbeeliminatedtoproperlyextinguishafire.DAllfourcomponentsmustbeeliminatedtoextinguishanyfire.正确答案:A4/5题[单选题]Afuel/airmixturebelowthelowerexplosivelimitistoo_______.ArichtoburnBleantoburnCcooltoburnDdensetoburn正确答案:B5/5题[单选题]Whichofthefollowingconditionsistrueconcerningaflammableliquidwithaconcentrationabovetheupperexplosivelimit？AThemixtureistooleantoburn.BThemixtureistoorichtoburn.CThevaporisabouttoexplode.DConditionsareperfectforcombustion.正确答案:B1/5题[单选题]Beforetheseasgetrough，itisagoodsafetypracticeto_______.AsecureloosegearBmovequicklyabouttheshipCincreaselightingDshutdownauxiliaryequipment正确答案:A2/5题[单选题]Seachestvalvesshouldneverbe_______.AleftpartiallyopenBleftclosedCleftopenDsecuredwithalock正确答案:D3/5题[单选题]Whenmaintenancepersonnelareworkingonelectricalequipment，allsupplyswitchesshouldbesecuredintheopenpositionandtaggedspecificallybythe_______.AwatchengineerBchiefengineerorfirstassistantCchiefelectricianDpersonperformingtherepair正确答案:D4/5题[单选题]Whichofthelistedconditionscanbeconsideredasthesinglegreatestcauseofaccidents？ASpeed.BExcessiveknowledgeorskill.CHumanerror.DExcitement.正确答案:C5/5题[单选题]Inmachineryspace，thevalves，pipesshouldbe_______.AarrangedasclosetoeachotheraspossibletosavespaceBarrangedfarawayfromeachotherforconvenientoperationCfixedorclampedtoavoidvibrationDkepteasyremovableastoconvenientoperation正确答案:C1/5题[单选题]Duringshipmaneuvering，whenthedieselisstopped，whichofthefollowingitemsiswrong？AKeepallsystemsinnormallyrunning.BMainengineisavailableatanymoment.CShutoffthestartingairbottleoutletvalve.DPayattentiontothechargesofthesystemparameters.正确答案:C2/5题[单选题]After“FinishedWithEngine”，whichofthefollowingcannotbeshutoffbythedutyengineer？AFueloilboosterpump.BThemainstartingvalve.CTheseachest.DThemaincoolingseawaterpump.正确答案:C3/5题[单选题]Whentheship，itsmainpropulsiondeviceequippedwithclutch，arrivedattheportandfinishedwiththeengine，thecorrectoperationshouldbe_______.Adisengagingtheclutchfirstly，thenstoppingthemainengineBstoppingthemainenginefirstly，thendisengagingtheclutchCstoppingthecoolingwaterpumpfirstly，thenstoppingthemainengineDstoppingthemainengineanddisengagingtheclutchatthesametime正确答案:A4/5题[单选题]Afterreceivedthe“FinishedWithEngine”instruction，whichofthefollowingoperationsisfalse？AShutoffthestartingairreceiveroutletvalve.BStopthefueloilprimingtransferpumpandshutoffthecorrespondinginletandoutletvalves.CStoptheseawaterpumpimmediatelyandshutoffthecorrespondinginletandoutletvalves.DStopthepumpimmediatelyandshutoffthecorrespondinginletandoutletvalves.正确答案:D5/5题[单选题]Whenreceivedtheorder“FinishedWithEngine”，whichofthefollowingoperationsiswrong？AStoptheLOpump，SWpump，FWpump.BStoptheprimingFOtransferpump.CEngagetheturninggear.DOpenthescavengeairbeltsdrainvalveandcovertheturbochargersilencerwiththedustproofcover.正确答案:A1/5题[单选题]Duringthewatchkeepingatsea，atappropriateintervalsinspectionshouldbemadeof_______auxiliarymachineryandsteeringgearspacesbythedutyengineer.AthemainpropulsionplantBlifesavingjacketsClifeboatengineDstateofemergencygenerator正确答案:A2/5题[单选题]Duringthewatchkeepingatsea，routineadjustmentsshouldbe_______.AmadeandnotedasrequiredbythedutyengineerBreportedtochiefengineerimmediatelyafterbeingmadebythedutyengineerCnevermadebeforegettingpermissionfromthechiefengineerDmadeasrequiredbutnotlogged正确答案:A3/5题[单选题]Duringthewatchkeepingatsea，_______shouldbeloggedorrecordedintheenginelogbook.AtherunninghoursofthecoolingwaterpumpBchiefengineer’sorderCthemainparametersofmainandauxiliaryequipmentDthepositionofthevessel正确答案:C4/5题[单选题]Duringthewatchkeepingatsea，wheresituationsoccurinthemachinespacewhichmayaffectthespeed，maneuverability，powersupplyorotheressentialsforthesafeoperationoftheship，_______shouldbeinformedassoonaspossible.AthechiefengineerBthemasterCthebridgeDthecompanysuperintendent正确答案:C5/5题[单选题]Duringthewatchkeepingatsea，theengineerinchargeshouldnotify_______intheeventofanyseriousoccurrenceorasituationwhereheisunsureoftheactiontotake.AthemasterBthechiefengineerCthebridgeDthecompanysuperintendent正确答案:B1/5题[单选题]Whenstand-byengineinstructionshavebeenreceived，it’snecessarytomakesurethatallvalvesinthevarioussystemsare_______.AoperationalBopenCclosedsecurelyDatmiddleposition正确答案:A2/5题[单选题]Intheprocessofthestand-by，warm-uptheengineusuallythroughgivingpreheatofwhichpartsofthedieselengine？ACoolingwaterofthecoolingsystem.BFueloftheFOsystem.CLOoftheLOsystem.DCoolingwaterofthecoolingsystemandLOoftheLOsystem.正确答案:D3/5题[单选题]Beforeamarinedieselengineisstartedthecylindersandpistonsmustbe_______.AcooledtoappropriatetemperatureBwarmedupgraduallytoappropriatetemperatureCopenedupandrenewedDgroundandpolished正确答案:B4/5题[单选题]Themainpurposeofwarmingthepartsofthemainengineis_______.AtoreduceheatstressBtoreducelowtemperaturecorrosionCtoimprovefiringandstartingperformanceDfuelsaving正确答案:C5/5题[单选题]Beforeengagingtheturninggearandturningthedieselengine，thefollowingoperationsshouldbedoneexcept_______.AopeningtheindicatorcocksBsupplyingsomecylinderoiltocylinderlinerwallwithlubricator（onlyfortwo-strokedieselengine）Cputtingthefuelhandleinthe“stop”positionDpumpinguptheairbottle正确答案:D1/5题[关联题]Anautomaticsystemusuallyconsistsofacontrolsystemandaninformationsystem.Acontrolsystemisasystemwhichmeasurestheconditionofsomeentityand，withtheinformation，governsthestateofavariable；i.e.，speed，temperature，pressure，position，etc.Theopen-loopsystemisthesimplestformacontrolsystemmayassume.Itisdistinguishedfromtheclosed-loopsystembythelackofaninputwhichmeasuresthestateofthecontrolledvariable；suchaninputiscalledafeedback.Inmodernshipstheopen-loopsystemhaspracticallydisappearedandtheclosed-loopsystemwhichoperateswithafeedbackisextensivelyused.Aninformationsystemservestheparallelfunctionofmonitoringsystemorplantperformance.Themonitoringfunctionmayserveanumberofpurpose；specificallyitmayindicatevaluesofcontrolledvariablestoguideremotecontroloperations，wamofoff-limitconditionsandproviderecordofperformance.Inmanycasesavisualandaudiblealarmmaybeprovidedtowareofoff-limitconditionsonboardshipand，associatedwiththis，theimportantvariableswillberecordedondemand.Theautomaticcontrolsystemcanbemoresophisticatedbyincorporatingdigital-processingequipment，thatis，acomputer.Thiscomputerisusuallyfedwithsignalsfromallsensors.Itscansthevaluesofthesensorsandgeneratesalarmsignalsforoff-limitconditions，actingasasuper-supervisor.Sometimes，itcanevenmakenecessaryandtakethenecessaryactiontooptimizeperformancewithouthumanintervention.Theclosed-loopsystemdiffersfromtheopen-loopsystemby_______.AthelackofafeedbackBthepresenceofafeedbackCthelackofacomputerDthepresenceofacomputer正确答案:B2/5题[关联题]Anautomaticsystemusuallyconsistsofacontrolsystemandaninformationsystem.Acontrolsystemisasystemwhichmeasurestheconditionofsomeentityand，withtheinformation，governsthestateofavariable；i.e.，speed，temperature，pressure，position，etc.Theopen-loopsystemisthesimplestformacontrolsystemmayassume.Itisdistinguishedfromtheclosed-loopsystembythelackofaninputwhichmeasuresthestateofthecontrolledvariable；suchaninputiscalledafeedback.Inmodernshipstheopen-loopsystemhaspracticallydisappearedandtheclosed-loopsystemwhichoperateswithafeedbackisextensivelyused.Aninformationsystemservestheparallelfunctionofmonitoringsystemorplantperformance.Themonitoringfunctionmayserveanumberofpurpose；specificallyitmayindicatevaluesofcontrolledvariablestoguideremotecontroloperations，wamofoff-limitconditionsandproviderecordofperformance.Inmanycasesavisualandaudiblealarmmaybeprovidedtowareofoff-limitconditionsonboardshipand，associatedwiththis，theimportantvariableswillberecordedondemand.Theautomaticcontrolsystemcanbemoresophisticatedbyincorporatingdigital-processingequipment，thatis，acomputer.Thiscomputerisusuallyfedwithsignalsfromallsensors.Itscansthevaluesofthesensorsandgeneratesalarmsignalsforoff-limitconditions，actingasasuper-supervisor.Sometimes，itcanevenmakenecessaryandtakethenecessaryactiontooptimizeperformancewithouthumanintervention.Afeedbackisaninput_______.AwhichgovernsthestateofavariableBwhichprovidesavisualandaudiblealarmCwhichindicatesvaluesofcontrolledvariablesDwhichmeasuresthestateofthecontrolledvariable正确答案:D3/5题[关联题]Anautomaticsystemusuallyconsistsofacontrolsystemandaninformationsystem.Acontrolsystemisasystemwhichmeasurestheconditionofsomeentityand，withtheinformation，governsthestateofavariable；i.e.，speed，temperature，pressure，position，etc.Theopen-loopsystemisthesimplestformacontrolsystemmayassume.Itisdistinguishedfromtheclosed-loopsystembythelackofaninputwhichmeasuresthestateofthecontrolledvariable；suchaninputiscalledafeedback.Inmodernshipstheopen-loopsystemhaspracticallydisappearedandtheclosed-loopsystemwhichoperateswithafeedbackisextensivelyused.Aninformationsystemservestheparallelfunctionofmonitoringsystemorplantperformance.Themonitoringfunctionmayserveanumberofpurpose；specificallyitmayindicatevaluesofcontrolledvariablestoguideremotecontroloperations，wamofoff-limitconditionsandproviderecordofperformance.Inmanycasesavisualandaudiblealarmmaybeprovidedtowareofoff-limitconditionsonboardshipand，associatedwiththis，theimportantvariableswillberecordedondemand.Theautomaticcontrolsystemcanbemoresophisticatedbyincorporatingdigital-processingequipment，thatis，acomputer.Thiscomputerisusuallyfedwithsignalsfromallsensors.Itscansthevaluesofthesensorsandgeneratesalarmsignalsforoff-limitconditions，actingasasuper-supervisor.Sometimes，itcanevenmakenecessaryandtakethenecessaryactiontooptimizeperformancewithouthumanintervention.Themonitoringfunctionmayserveallofthefollowingpurposesexcept_______.AinstigatingcorrectiveactionBindicatingvaluesofcontrolledvariablesCwarningofoff-limitconditionsDprovidingrecordofperformance正确答案:A4/5题[关联题]Anautomaticsystemusuallyconsistsofacontrolsystemandaninformationsystem.Acontrolsystemisasystemwhichmeasurestheconditionofsomeentityand，withtheinformation，governsthestateofavariable；i.e.，speed，temperature，pressure，position，etc.Theopen-loopsystemisthesimplestformacontrolsystemmayassume.Itisdistinguishedfromtheclosed-loopsystembythelackofaninputwhichmeasuresthestateofthecontrolledvariable；suchaninputiscalledafeedback.Inmodernshipstheopen-loopsystemhaspracticallydisappearedandtheclosed-loopsystemwhichoperateswithafeedbackisextensivelyused.Aninformationsystemservestheparallelfunctionofmonitoringsystemorplantperformance.Themonitoringfunctionmayserveanumberofpurpose；specificallyitmayindicatevaluesofcontrolledvariablestoguideremotecontroloperations，wamofoff-limitconditionsandproviderecordofperformance.Inmanycasesavisualandaudiblealarmmaybeprovidedtowareofoff-limitconditionsonboardshipand，associatedwiththis，theimportantvariableswillberecordedondemand.Theautomaticcontrolsystemcanbemoresophisticatedbyincorporatingdigital-processingequipment，thatis，acomputer.Thiscomputerisusuallyfedwithsignalsfromallsensors.Itscansthevaluesofthesensorsandgeneratesalarmsignalsforoff-limitconditions，actingasasuper-supervisor.Sometimes，itcanevenmakenecessaryandtakethenecessaryactiontooptimizeperformancewithouthumanintervention.Theword“off-limit”inthePassagemaymean_______.Aoff-setBoff-stateCwithinlimitsDbeyondthelimit正确答案:D5/5题[关联题]Thefieldcurrentsupplyinoldermachinescomesfromalowervoltagedirectcurrentgeneratororexciteronthesameshaftasthealternator.Modernmachineshoweverareeitherstaticallyexcitedorofthehigh-speedbrushlesstype.Theexciterisrequiredtooperatetocountertheeffectsofpowerfactorforagivenload.Thepowerfactorisameasureofthephasedifferencebetweenvoltageandcurrentandisexpressedasthecosineofthephaseangle.Withapurelyresistanceloadthevoltageandthecurrentareinphase，givingapowerfactorofone.Thepowerconsumedisthereforetheproductofvoltageandcurrent.Inductiveorcapacitiveloads，combinedwithresistanceloads，producelaggingorleadingpowerfactorswhichhaveavaluelessthanone.Thepowerconsumedisthereforetheproductofcurrent，voltageandpowerfactor.Thealternatingcurrentgeneratorsupplyingaloadhasavoltagedropresultingfromtheload.Whentheloadhasalaggingpowerfactorthisvoltagedropisconsiderable.Thereforetheexciter，inmaintainingthealternatorvoltage，mustvarywithloadcurrentandalsothepowerfactor.Thespeedchangeoftheprimemovermustalsobetakenintoaccount.Theunderlinedword“machines”inthePassagerefersto_______.AthedirectcurrentgeneratorBthealternatingcurrentgeneratorCtheexciterDtheprimemover正确答案:B1/5题[单选题]UMSstandsfor_______.AultramuchspaceBunitmachinedspaceCuniversalmediumsystemDunattendedmachineryspace正确答案:D2/5题[单选题]Remotecontrolmeansthat_______.AthesystemismannedmanuallyBthesystemiscontrolledautomaticallyCthesystemissituatedremotelyfromtheoperatorDthesystemiscontrolledlocally正确答案:C3/5题[单选题]InordertoensurethesafetyoftheshipanditsequipmentduringUMSoperation，certainessentialfunctions_______.AmustbeprovidedBmaybeprovidedChaveprovidedDcanbeprovided正确答案:A4/5题[单选题]UMSaremainlyunattendedovernightandduringthistime_______shouldhavecontrolofthemainengine.AthechiefengineerBtheengineeroncabinwatchCthebridgeofficeronwatchDthemaster正确答案:C5/5题[单选题]WhatisthefoundationoftheUMS？ABridgecontrolandengineroomcontrol.BAlarmandfireprotection.CModerncontrolsystemandthereliabilityoftheequipment.DAlarmandfireprotectionandtheemergencypower.正确答案:C1/5题[单选题]Onashiptherearemany_______thatneedtobecontrolledormonitoredincluding：temperatures，pressure，level，viscosity，flowcontrol，positionofvessel，speed，torquecontrol，voltageandcurrent，etc.AinformationBparametersCinstrumentsDinstructions正确答案:B2/5题[单选题]Inathree-elementcontrolsystemoftheboilertheelementsare_______.Asteampressure，drumlevelandfeedwaterflowBsteamflow，drumlevelandfeedwaterflowCsteampressure，drumlevelandfeedwaterpressureDsteamflow，drumlevelandfeedwaterpressure正确答案:B3/5题[单选题]Anydeviationbetweenthedesiredandactualboilerdrumlevelandanydeviationbetweenfeedandsteamflowwillresultincontrolleraction_______.AtoadjustthemainsteamstopvalveBtoadjustthefeedwatercontrolvalveCtoadjustthesafetyvalveDtoadjustthewaterlevelgauge正确答案:B4/5题[单选题]Asuddenincreaseinsteamdemandoftheboilerwouldresultinadeviationsignalfromthedifferentialrelayandoutputsignal_______.AtoclosethefeedwatercontrolvalveBtoopenthefeedwatercontrolvalveCtoclosethemainsteamstopvalveDtoopenthemainsteamstopvalve正确答案:B5/5题[单选题]Forareductioninsteamdemandoftheboiler，outputsignalto_______wouldresult，thusavoidingshrinkageeffects.AopenthefeedwatercontrolvalveBclosethefeedwatercontrolvalveCclosethemainsteamstopvalveDopenthemainsteamstopvalve正确答案:B1/5题[单选题]Whichofthelisteddevicesisusedtomeasurepressureandconvertittoanelectricalsignal？ATransducer.BReducer.CTransf