雨课堂学堂在线学堂云《Introducing Marine Engineering（大连海大 ）》单元测试考核答案

注：不含主观题第1题单选题(1分)Therearemanycriteriatoclassifyships.Themostprevalentclassificationisbasedon_____.ApropulsionplantBengineroomlocationCshipusageDshipnavigatingarea第2题单选题(1分)Whichofthefollowingisakingofworkingship?_____AResearchshipBBulkcargoshipCLiquefiedgasshipDContainership第3题单选题(1分)Whichofthefollowingengineshasnosignificanteffectsonenergysavingandemissionreduction?_____AElectronic-controlledinjectiondieselengineBGasturbineCGasengineDDualfuelengine第4题单选题(1分)Oceantransportationisthemostimportantmodeofdifferenttransportationsininternationaltrade.Abouthowmuchinternationaltradedoesitbear?_____。A0.3B0.5C0.7D0.9第5题单选题(1分)Whatis(are)thespecialsignificance(s)ofshippingindustryforChina?_____AOceantransportationisthemostimportantmodeofdifferenttransportationsininternationaltrade.BThedevelopmentofshippingindustryistheneedofbuildingapowerfulcountryintransportation.CThedevelopmentofshippingindustryistheneedofbuildingapowerfulcountryinmaritime.DAlloftheother

items1.2MarinePowerPlant第1题单选题(1分)Theconceptof"marineengineering"wasintroducedinthe__________centurywiththecompletionofthe"Clement"ship.A17B18C19D20第2题单选题(1分)Accordingtothedifferentfunctionsofvariousdevices,machinery,equipmentandsystemsthatconsistthemarineengineering,theycanbedividedintosevenparts,including__________,auxiliaryequipment,pipelinesystems,deckmachineries,antipollutionequipment,automationequipmentandspecialequipmentandsystems.ApowerplantBfirefightingequipmentCpropulsionplantDBoilersystem第3题单选题(1分)_______isusedtoconvertthemechanicalenergydeliveiedbythemainengineintothrust,soastodrivetheshipaheadorastern.APropellerBShaftingCFinstabilizerDRudder第4题单选题(1分)Thebowthrusterandstabilizeroftheshiparebelongedtothe_____oftheship.AautomationequipmentBdeckmachineryCauxiliarydeviceDpipingsystem第5题单选题(1分)_____doesnotbelongingtoshippropulsionequipment.APaddlewheelBPropellerCWaterjetpropulsionDSteeringgeer1.3WorkingParametersofMarinePowerPlant第1题单选题(1分)Whichofthefollowingoptionsarethebasicoperatingparameterofmarinepowerplant?_____ATemperature,speed,torque,humidityBLiquidlevel,flow,speed,lengthCPower,displacement,density,massDPressure,liquidlevel,flow,speed第2题单选题(1分)Therearemanykindsofpressureunits,and"bar"isoneofthemcommonlyusedonboardships.1bar=_____Mpa.A10B1C0.1D0.01第3题单选题(1分)The______ofdieselengineiscalculatedbymeasuringitsindicatordiagram.AindicatedpowerBoutputpowerCtorqueDcrankshaftspeed第4题单选题(1分)Whichofthefollowingdescriptionsiswrongaboutthecontrolofanairconditioner?_____AThecontrolpositioncanbedividedintoremotecontrolandlocalcontrol.BInlocalcontrol,theautomaticcontrolsystemalsoneedstowork.CIftheremotecontroldoesn'twork,theairconditionerwon'twork.DIncaseofcontrolsystemfailure,manualcontrolmodecanbeadopted.1.4PerformanceIndexesofMarinePowerPlant第1题单选题(1分)TherelationshipbetweenthepropelleroutputpowerP1andthemainengineoutputpowerP2is_____.AP1>P2BP1CP1=P2Dnone第2题单选题(1分)Charteringashipwith"VoyageCharter"typeissimilartotakingataxi.Inthisprocess,whichofthefollowingcostsshouldbetakenbytheshipcharterer?AShipbuildingcostBCrewwagesCFuelcostDNoneoftheother

items第3题单选题(1分)Charteringashipwith"TimeCharter"typeissimilartocharteringacarforoneormoredayswhenwehaveatravel.Inthisprocess,whichofthefollowingcostsshouldbetakenbytheshipcharterer?AcrewwagesBshiprepaircostCfuelcostDshipbuildingcost第4题单选题(1分)Charteringashipwith"BareboatCharter"typeissimilartorentingacarfromthecompanytooperatebyataxidriver.Inthisprocess,whichofthefollowingcostsshouldbetakenbytheshipowner?AShipbuildingcostBCrewwagesCFuelcostDAlloftheother

items第5题单选题(1分)Whentheoilpriceisveryhigh,thecostofoilsavingandcostreductionaredominant;whenthefreightisveryhigh,theincreaseofpassengerandfreightturnoverisdominant.Thissentencedescribesthe_____.AmaximumprofitablespeedBminimumfuelcostspeedCminimumfuelconsumptionspeedDaveragespeed第6题单选题(1分)Innavigation,______areoftenusedtoexpressthespeedofaship.AknotBkm/hCm/sDrpm2.1MarinePropulsionPlant第1题单选题(1分)"Thetrainrunsfast,alldependsontheheadofthecar;theboatrunsfaster,thepowerisveryimportant."The"power"herecomesfromthe_____.AshippropulsionplantBshipelectricpowerplantCboilerequipmentDshippropeller第2题单选题(1分)Generally,themainenginerotatesanddrivesthepropellerthrough_____.AChainBBeltCShaftingDGear第3题单选题(1分)Areductiongearboxisarrangedbetweenthepropellerandthesteamturbineofthenuclearpowerpropulsiondevice,thepurposeofwhichisto_____.AprotecttheshaftingBimprovepropellerefficiencyCsavefuelDtoensurethesafetyofshipnavigation2.2MainDieselEngine第1题单选题(1分)Howistheignitionofdieselenginecylinderrealized?ACompressionBSparkplugignitionCExternalignitionDLowerignition第2题单选题(1分)Thepistonrunsupanddowntwice,andthecrankshaftturnstwicetocompleteacycle.Wecallthiskindofdieselengine"_____".AtwostrokedieselengineBfourstrokedieselengineChighspeeddieselengineDlowspeeddieselengine第3题单选题(1分)SCRtechnology,thatis,selectivecatalyticreductiontechnology,isusedtodealwiththe"_____".ASOxBCO2CNOxDN2第4题单选题(1分)14RT-flex96Cdieselenginehas_____cylinders.A96B14C9D62.3Propeller第1题单选题(1分)Theinventionofpropellercanbetracedbacktothe_____morethan1400yearsagoinChina.AwindmillBwoodenboatCpuppetDbamboodragonfly第2题单选题(1分)Insomecommercialships,inordertomakethemainenginedonothavetorotateinthereversedirection,wechoose"_____".AControllablepitchpropellerBCo-axialcontrarotatingpropellerCShroudedpropellerDFixedpitchpropeller第3题单选题(1分)Thethrustandresistingmomentofthewholepropellercanbeobtainedbyintegratingthethrustandresistingmomentofallthe_____.AbladerootBbladeelementCbladetipDbladeedge第4题单选题(1分)Slipratioisaveryimportantparametertostudythehydrodynamicperformanceofpropeller.Slipratio=_____/_____.Aadvance/diameterBdiameter

/

advanceCslip

/

pitchDpitch

/

slip2.4TransmissionShafting第1题单选题(1分)Shaftingincludes_____,_____,_____,thrustbearing,intermediatebearing,bowbearing,sternbearingsupportingtheseshafts,aswellassomeaccessoriesofshafting,suchassealing,coolingandlubricatingequipmentofsterntube.Acrankshaft,intermediateshaft,propellershaftBthrustshaft,transfershaft,propellershaftCthrustslider,intermediateshaft,propellershaftDthrustshaft,intermediateshaft,propellershaft第2题单选题(1分)Themainengineisfixedwiththehullthroughthe_____.ApropellerBshaftingCsealingdeviceDbedplate第3题单选题(1分)Theintermediatebearingoftheshaftingisdividedintoupperandlowerhalves,whicharefixedbybolts,sothatitisconvenientto_____.AshaftinginstallationandbearingwearinspectionBtransmittorqueCimprovethelubricationcapacityofshaftingDpreventshaftingfromrusting第4题单选题(1分)Themainengineoftheshipisintheengineroom,andthepropellerisoutsidetheenginebody._____connectsthem.AHullBTransmissionshaftingCShaftgeneratorDDeck3.1IntroductiontoMarineElectricalPowerSystem第1题单选题(1分)Inoceangoingships,whichengineofthefollowingisgenerallyusedtodrivethegenerator?_____.AWaterturbineBFanCGasturbineDDieselengine第2题单选题(1分)TheratedfrequencyofthemarineACpowersystemusedinChinais_____.A55Hz

B70Hz

C50Hz

D60Hz第3题单选题(1分)Electricpowerisanindispensablepartoftheship,sowhatdevicedoestheshipusetorealizethedistribution,conversionandcontrolfunctionsofelectricpower?_____APowersupplyunitBDistributiondeviceCPowernetworkDLoad第4题单选题(1分)Comparedwiththeelectricalpowersystemonland,onboardship,thetotalpoweroutputis_____,thevalueofratedvoltageis_____,anditis_____totheloadchange.Alower/higher/moresensitiveBlower/lower/moresensitiveChigher/higher/lesssensitiveDhigher/lower/lesssensitive3.2MarineGeneratorsandSwitchboard第1题单选题(1分)Inmaneuveringofaship,thenumberofgeneratorsetswhichareinworkingisgenerallynotlessthan_____sets.A1B2C3D4第2题单选题(1分)Themostcommonlyusedtypeofmarinegeneratoris_____。Afourphases,brushless,AC,synchronousgeneratorBfourphases,brushless,DC,synchronousgeneratorCthreephases,brushless,DC,synchronousgeneratorDthreephases,brushless,AC,synchronousgenerator第3题单选题(1分)Whichofthefollowingcontrolpanelsisusedtostartandstopthegenerator,setparametersandimplementrelevantprotection?_____。ACombinedstartuppanelBLoadpanelCGeneratorcontrolpanelDParallelpanel第4题单选题(1分)Whichofthefollowingstatementsabout"paralleloperation"onboradshipiswrong?_____AParalleloperationcanbeusedtodescribetheparalleloperationofauxiliaryengines.BParalleloperationcanbeusedtodiscribetheparalleloperationofgeneratorsets.CParalleloperationofauxiliaryenginesandparalleloperationofgeneratorsetsareverydifferentoperations.DParalleloperationcanbecarriedouteithermanuallyorautomatically.4.1MarinePipingSystem第1题单选题(1分)Whichofthefollowingisaimpellerpump?_____AGearpumpBScrewpumpCCentrifugalpumpDJetpump第2题单选题(1分)Whenwetalkabout_____,theinjectorformedicalpurposeandhandairpumpforbycicletirecouldbementioned.AejectpumpBcentrifugalpumpCscrewpumpDreciprocatingpump第3题单选题(1分)Onboardship,whatcolorarethefire-fightingpipesusuallypaintedwith?_____ARedBOrangeCBlueDYellow第4题单选题(1分)Inpipingsystemsonboardship,theequipmentusedtocontroltheon-offofmediumis_____.AvalveBpumpCflangeDsensor4.2CompressedAirSystem第1题单选题(1分)Thestartingmodeofthelarge,low-speed,two-strokedieselengineonboardshipis_____.AmotorstartBcompressedairstartCbatterystartDmanualstart第2题单选题(1分)Theshipisgenerallyequippedwithtwomainaircompressors,oneformainuseandoneforstandby.Thestartandstopofaircompressoristhrough_____tocontrolit.AtemperatureswitchBpressureswitchCflowsensorDtemperaturesensor第3题单选题(1分)Thecompressedairpressureusedforairstartingmotoronboardfourstrokedieselengine(dieselengineforpowergeneration)isgenerallyabout_____bar.A30B50C20D84.3FuelOilSystem第1题单选题(1分)Whichofthefollowingfuelsisusedbyoceangoingmerchantshipsinnormalnavigation?_____AGasolineBKeroseneCHeavyfueloilDPetrolgas第2题单选题(1分)Thefueloilintheheavyoildailyservicetankisgenerallyheatedto_____℃.A50-55B60-65C100-105D80-85第3题单选题(1分)Onboard,theequipmentforheavyoilpurificationgenerallydoesnotincludethe_____.AoilseparatorBoilwaterseparatorCselfcleaningfilterDfinefilter第4题单选题(1分)_____isgenerallynotincludedinthefuelusedforthemainengineoftheship.ADieseloilBHeavyoilCLowsulfurheavyoilDGasoline第5题单选题(1分)Inthefuelsupplysystemofmarinedieselengine,thedisplacementofthesupplypumpshouldbe_____thefuelconsumptionofthemainenginetoensurethatthemainenginecangetenoughfuelsupply.AmorethanBequaltoClessthanDAorBorC4.4SteamSystem第1题单选题(1分)Inships,thefueloilisusuallyheatedby_____.AelectricBsteamCwastegasDhotwater第2题单选题(1分)Theratedpressureofsteaminmarineauxiliaryboilerisgenerally_____.A20barB30barC15baD7bar第3题单选题(1分)Theparameterrepresentingtheamountofsteamproducedbytheboilerperhouris_____.AsteampressureBevaporationcapacityCefficiencyDevaporationrate第4题单选题(1分)Steamfromboilersisusedinmanyplacesonboard.Whichofthefollowingboilersdoesnotneedtoconsumefueldirectly?AMainboilerBOilfiredauxiliaryboilerCExhaustgasboilerDOilandexhaustgascombinedboiler第5题单选题(1分)_____ofthefollowingequipmentisnotapartoftheship'ssteamsystem.ASteamheaterBHotwellCAtmosphericcondenserDIncinerator4.5LubricationoilSystem第1题单选题(1分)Inthelubricatingoilsystemofthemainengine,thefunctionof_____istoadjusttheamountoflubricatingoilenteringthelubricatingoilcooleraccordingtothetemperatureofthelubricatingoil.AselfcleaningfilterBlubricationoilpumpCthree-wayvalveDby-passfilter第2题单选题(1分)Thecylinderlubricationsystemofalargetwo-strokedieselengineisusuallyakindof_____.AdrysumplubricationsystemBwetsumplubricationsystemCsplashlubricationDtotallosslubricationsystem第3题单选题(1分)Thecylinderlubricationsystemofasmallfourstrokedieselengineisusuallyakindof

_____.AdrysumplubricationsystemBwetsumplubricationsystemCsplashlubricationDtotallosslubricationsystem第4题单选题(1分)Inthecombustionprocessofdieselengine,therewillbeapartofcombustionproductsleftonthecylinderliner,inwhichthecomponentthatwillcorrodethecylinderlineris_____.AcarbonBhydrogenCsulfurDwater4.6CoolingWaterSystem第1题单选题(1分)Thefunctionofthedieselenginesuperchargeristoincreasethe_____pressureintothecylinder,soastoburnmore_____andmakethedieselenginetoproducemore_____.Acoolingwater/fuel/wastegasBair/fuel/powerCcoolingwater/fuel/powerDair/fuel/wastegas第2题单选题(1分)Themaincomponentormediumtobecooledinmarinedieselengineis(are)_____.Acylinderhead,cylinderlinerBchargeairClubricatingoilDalloftheother

items第3题单选题(1分)Afterfreshwatercomesoutofthemainengine,itentersintothecylinderlinerwatercoolerthroughthethree-wayvalve.Thethree-wayvalveisusedtoensurethatthetemperatureofthecylinderlinerwatercomingoutofthemainengineisabout_____℃.A85B75C65D55第4题单选题(1分)Theadvantageofplatecooleris_____.AhighheatexchangeefficiencyBlargeheatexchangeareaCcompactstructureDAlloftheabove第5题单选题(1分)Inthemarinecentralcoolingwatersystem,_____isusedtodirectlycoolthecylinderlinerofthemainengine._____AseawaterBlowtemperaturefreshwaterChightemperaturefreshwaterDcompressedair5.1HydraulicSystem第1题单选题(1分)Amongthecontrolelementsthatmakeupthehydraulicsystem,theonethatcancontrolthemovementspeedoftheactuatoris_____.AdirectioncontrolvalveBflowcontrolvalveCpressurecontrolvalveDtemperaturecontrolvalve第2题单选题(1分)Inthehydraulicsystem,whichofthefollowingtypesofhydraulicpumpsisnotcommonlyused?____AGearpumpBCentrifugalpumpCPlungerpumpDVanepump第3题单选题(1分)Inthehydraulicsystem,tochangethespeedofthehydraulicmotor,youcanchange____toachieve.AthefluidflowtohydraulicmotorBthedisplacementofhydraulicmotorCAorBDthenumberofhydraulicmotors第4题单选题(1分)Inthehydraulicsystem,therelationshipamongthedisplacementQofthehydraulicmotor,thesystemoilpressurePandthetorqueMofthehydraulicmotoristhat____.AwhenQisconstant,thehigherPis,thelargerMisBwhenQisconstant,thehigherPis,thesmallerMisCwhenPisconstant,thelargerQis,thesmallerMisDthereisnorelationshipbetweenthethree第5题单选题(1分)Whichofthefollowingadvantagesisnotavailableinthehydraulicsystem?_____AHighpowertomassratioBFlexiblesystemlayoutCLowprecisionrequirementsforhydrauliccomponentsDEasytorealizewiderangespeedregulation5.2SteeringGear第1题单选题(1分)Theturningmoment(i.e.rudderefficiency)_____withtheincreaseofrudderangle,whichis_____tothesubmergedareaofrudderbladeand_____tothesquareofflowvelocityatrudderblade.Aincreases/directlyproportional/directlyproportionalBincreases/inverselyproportional/directlyproportionalCincreases/directlyproportional/inverselyproportionalDdecreases/directlyproportional/directlyproportional第2题单选题(1分)Whichofthefollowingiswrongabouttheship'ssteeringefficiency?_____ADuringtheperiodofberthinganddeparting,duetothelowspeed,thesteeringefficiencyisverypoor.BLargeshipsusuallyneedtugstoassistinberthinganddeparting.CWhenturningtherudder,theshipwilldriftandincline.DWhentheshipissailingathighspeed,inordertoreducetheturningtime,thesteeringangleshouldbeaslargeaspossible.第3题单选题(1分)Pumpcontrolledhydraulicsteeringgearisgenerallydesignedwith_____pumpsand_____hydraulicsystem.Abidirectional,

variabledisplacement/opencircuitBsingledirection,fixeddisplacement/opentypeCbidirectional,

variabledisplacement/

closedtypeDsingledirection,fixeddisplacement/

closedtype第4题单选题(1分)_____isanemergencyrudderintheremotecontrolmode.Itdoesnotneedtheparticipationoftheautomaticcontrolsystem.Itcanbeusedwhenthemainpowersystemorthecontrolsystemfails.ABalancerudderBNon-follow-upCFollow-upDSemi-balancedrudder5.3Crane第1题单选题(1分)Forshipliftingequipmentwithveryheavyload,_____drivingmodeisgenerallyadopted.AmanualBelectricCautoDelectro-hydraulic第2题单选题(1分)Thecranegenerallyhavethestructureof_____、_____and_____.Ahoisting,luffing,rotatingBhoisting,reversing,rotatingCluffing,reversing,rotatingDhoisting,luffing,reversing第3题单选题(1分)Thebasictechnicalrequirementsforthehydrauliccraneinclude_____.AreverseorreversingcapabilityBSpeedregulationandspeedlimitCBrakingequipmentandlockingdeviceDalloftheother

items第4题单选题(1分)Theliftingcapacityofthemarinecraneislimited.Forlargebulkcarrierswithacapacityofmorethan_____tons,inordertoensuretheloadingandunloadingefficiency,theonshoreliftingequipmentisgenerallyused.A10,000B30,000C50,000D100,0005.4WindlassandMooringWinch第1题单选题(1分)Thebreakdownofacarontheroadissimilartothe____ofships.AstandbyanchorageBanchorageforavoidingwindCanchorageformaintenanceDanchorageforwaitingpilot第2题单选题(1分)Whichofthefollowingdescriptionsiswrongwithrespecttotheanchorageofshipanditswindlass?____ADuringmaneuvering,theshipusuallyneedstoprepareanchors.BAftertheshipisanchored,itisnecessarytolightuptheanchoringlightsinthedaytime.CThesizeofanchorchainisrelativelylarge,soitcannotbewindedonthewildcatofwindlass.DAnchorsandchainscanbediscardedinanemergency.第3题单选题(1分)Theequipmentusedforstrandingandmooringofshipiscalledmooringarrangement,whichismainlycomposedofmooringlines,fairleads,bollards,_____,ropecars,bumpers,etc.AwindlassmachineryBcargowinchCwinchDsteeringengine第4题单选题(1分)Whenthetideishigh(thedistancebetweenthewinchandthecablebollardontheshorebecomessmaller),theautomaticwinchwill_____.AretractcableBreleasecableCliftanchorDloweranchor5.5ThrustersandStabilizers第1题单选题(1分)Therearemanyadvantagesofshipsidethruster.Whichofthefollowingisnotcorrect?AImprovethemaneuverabilityoftheshipBReducethestartingandreversingtimesofthemainengineCShortenthetimetoberthDReduceenginenoise第2题单选题(1分)Accordingtothedifferentarrangementposition,thethrustercanbedividedintobowthruster,sternthruster,inboardtypeandoutboardtype.Forgeneralships,theinstallationof_____canmeettheneedofmaneuverability.AbowthrusterBsternthrusterCstarboardsidethrusterDportsidethruster第3题单选题(1分)Uptonow,themostwidelyusedandmosteffectiveoneofactivestabilizingsystemsis_____.AbilgekeelBactiveantirollingtankCfinstabilizerDpassiveantirollingtank第4题单选题(1分)Onboardships,thesidethrustersareusedat_____shipspeed,andthefinstabilizersareusedat_____shipspeed.So,theyaregenerally_____atthesametime.Alow/high/notusedBhigh/low/notusedClow/low/usedDhigh/high/used第5题单选题(1分)Theequipmentthatwillnotbeusedwhentheshipisberthedis_____.AmainengineBwinchCfinstabilizerDbowthruster6.1BallastWaterSystem第1题单选题(1分)Thearrangementofballastpipingsystemoneachshipisdifferent,butitcanbebasicallydividedintotwoforms,oneisbranchpipetype,andtheotheris_____.AmainpipetypeBsinglepipetypeCmultipipetypeDdualpipetype第2题单选题(1分)Abasiclayoutprincipleofballastwatersystemiswhattypeofinletvalveofballasttankcannotbeused?_____AGlobevalveBButterflyvalveCCheckvalveDHydraulicvalve第3题单选题(1分)Duringtheloadingandunloadingprocessoftheship,theballastwatersystemmaybeoperatedaccordingly.Whichstatementsinthefollowingiscorrect?_____

AForwardcargoholdloading,forepeaktankballastingBForwardcargoholdloading,forepeaktankdeballastingCForwardcargoholdloading,aftpeaktankdeballastingDForwardcargoholdloading,noballastwatertankoperating

6.2BilgeWaterSystem第1题单选题(1分)Hazardsofbilgewaterinclude_____,wetgoodsandequipment,affectthestabilityoftheship,causetheshiptorollover,andendangerthesafetyoftheship.AcorrodethehullBnoisegenerationCcausewearDshipcollision第2题单选题(1分)Whichofthefollowingareasisoilybilgewaterproduced?_____ACargoholdareaBEngineroomCEmptycabinDDrycompartment第3题单选题(1分)Inthefollowingdevices,_____doesnotbelongtobilgesystemofengineroom.AbilgepumpBbilgewellCemergencybilgesuctionvalveDoilseparator第4题单选题(1分)Regardingthetreatmentofbilgewater,whichofthefollowingstatementsisincorrect?_____AThebilgewaterofthecargoholdwithoutoilcanbedirectlydischargedoverboardwithouttreatment.BUndernocircumstancescanoilybilgewaterentertheseadirectly.CForthesakeoflifesafetyandshipsafety,theoilybilgewatercanbedirectlydischargedoverboardifnecessary.DTheoilywaterseparatorisgenerallyusedtotreatthebilgewaterofengineroomcontainingoil.6.3Fire-FightingSystem第1题单选题(1分)Generallyspeaking,firecanbedividedintosolidfire,liquidfire,gasfire,metalfireand_____fireetc.accordingtothedifferentcombustionmaterials.AelectricBoilCnaturalgasDalloy第2题单选题(1分)Whenshipfireisrelativelylargeandportablefireextinguishersarenotenough,fixedlarge-scalefire-fightingsystemwillbeused._____doesnotbelongtothelarge-scalefireprotectionofthefollowing.APontoonfireextinguisherBFirewatersystemCCarbondioxidefirefightingsystemDFoamfirefightingsystem第3题单选题(1分)Thefirewatersysteminresidentialbuildingsandshoppingmallsissimilartothatonships,butthedifferenceisthatthefire-fightingwateronlandisgenerallyfreshwaterprovidedbythetapwaternetwork,andthefire-fightingwateronshipsisgenerallyseawaterprovidedby_____.AfirepumpBemergencyfirepumpCdailywaterpumpDAorB第4题单选题(1分)Itisaverydangeroussituationforashiptohaveafire.Fortheelectricfireofthebridgeinstrument,the_____extinguishershouldbeused.AwaterbasedBdrypowderCfoamDcarbondioxide6.4RefrigerationSystem第1题单选题(1分)Therearemanymethodsofrefrigeration,suchascompressionrefrigeration,absorptionrefrigerationandjetrefrigeration,etc.Themostwidelyusedmethodonboardis_____.AjetrefrigerationBabsorptionrefrigerationCexhaustrefrigerationDcompressionrefrigeration第2题单选题(1分)Inthecompressionrefrigerationsystem,therefrigerantliquidwithlowtemperatureandhighpressurechangesintotheliquidwithlowtemperatureandlowpressurethroughthe_____.AexpansionvalveBcondenserCcompressorDevaporator第3题单选题(1分)Inordertoensureamoreuniformtemperatureinthecoldstorage,theevaporatorinthecoldstorageisalsoequippedwithafan,whichiscalled"_____".ARefrigeratorBAircoolerCThermostatDBlower第4题单选题(1分)Thecoldstorageonboardplaysanimportantroleinensuringthecrew'sfood.Thedevicethatabsorbsheatinthecoldstorageis_____.AcompressorBcondenserCexpansionvalveDevaporator6.5AirConditioningSystem第1题单选题(1分)Asforairconditioning,China'snationalstandardstipulatesthatthetemperatureisabout_____℃inwinterand_____℃insummer,whichcannotonlymeetpeople'scomfortrequirements,butalsoachieveenergyconservationandemissionreduction.A22/26B26/22C25/25D24/24第2题单选题(1分)Thetemperatureandhumidityofthecabinareregulatedbytheairconditioneronboardship.Theairconditionerisinternallyarrangedwithfan,heaterand_____.AcondenserBfueloilcoilCcoolerDairdistributor第3题单选题(1分)Foradualductsystem,adjustingtheairdistributorisusedtoadjust_____.AairsupplyvolumeofairdistributorBratioofprimarywindtosecondarywindCwindspeedDtemperature第4题单选题(1分)Generallyspeaking,theairconditioningofoceangoingshipshas_____effect.ArefrigerationBheatingChumidificationDalloftheother

items7.1TreatmentforOilyWater,BallastWaterandSewage第1题单选题(1分)Forshipswithlongvoyagetimeandmoredomesticsewage,thesewageshouldbetreatedandthendischargedoverboard.Whichofthefollowingtreatmentmethodscannotbeusedinthiscase?_____AFiltrationmethodBPhysicochemicalmethodCBiochemicalmethodDMixedtreatmentmethod第2题单选题(1分)Whichofthefollowingseparationmethodsisnotcommonlyusedbyoilywaterseparator?_____APhysicalseparationBChemicalseparationCElectrolyticseparationDElectroflotationseparation第3题单选题(1分)Whichofthefollowingtechnologiesisnotcommonlyused

forballastwatertreatment?_____AFiltrationandultravioletlightBFiltrationandElectrocatalysisCCentrifugationDHydroxylradical7.2TreatmentforGarbage第1题单选题(1分)AccordingtothedataanalysisofTempoin2019,thecountrywiththelargestpercapitawasteoutputis_____.ACanadaBBulgariaCAmericaDChina第2题单选题(1分)Therearefourkindsoftrashcansonboard,whicharered,green,blueandblack.Amongthem,thegreenoneisusedtocollect_____.AdomesticgarbageBplasticwasteCoperationwasteDfoodwaste第3题单选题(1分)Amongthefollowingwastes,_____cannotbeincineratedbyordinarymarineincinerator.AplasticBdirtyoilCpaperDfoodwaste第4题单选题(1分)WhereisthefirstareainmainlandChinatoenforcegarbageclassificationintheformoflegislation?_____ABeijingBDalianCGuangzhouDShanghai7.3TreatmentforExhaustGas第1题单选题(1分)InJuly2018,thethree-yearact