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1、INTHETWOSTROKEDIESELENGINE,ITISDESIGNEDSOTHATTHEOILIMPINGEMENTISTIMEDTOPROCEEDONLYONTHEPISTONRINGBELTDURING_ACOMPRESSIONSTROKEBSUCTIONSTROKECEXPANSIONSTROKEDEXHAUSTSTROKE2、INAFOURSTROKEENGINE,WHICHPROCESSLASTSTHELONGESTPERIODAEXHAUSTANDSUCTIONPROCESSBSUCTIONANDCOMPRESSIONPROCESSCCOMBUSTIONANDEXHAUSTPROCESSDWORKINGANDEXHAUSTPROCESS3、ONWHATDOYOUDEPENDHAVINGTHEAIRCOOLEROFMAINENGINECHEMICALLYWASHEDAINCREASEDAIRPRESSUREDIFFERENCEBEFOREANDAFTAIRCOOLERBREDUCEDEXHAUSTTEMPERATUREINALLCYLINDERSCREDUCEDTEMPERATUREDIFFERENCEBETWEENWATERINLETANDOUTLETDBOTHAANDC4、WHENOCCURRINGAFIREINTHESCAVENGEAIRBOX,THEFOLLOWINGMEASURESSHOULDBETAKENEXCEPTFOR_AREDUCINGSPEEDTOSLOWANDASKINGBRIDGEFORPERMISSIONTOSTOPBSTOPPINGTHEFUELOILSUPPLYCSWITCHINGONTHEAUXILIARYBLOWERSDPUTTINGTHESCAVENGEAIRBOXFIREEXTINGUISHINGEQUIPMENTINTOFUNCTION5、CONTINUOUSSURGINGOFTURBOCHARGERCANBECAUSEDBY_CRASHSTOPOFENGINEINCREASEDBACKPRESSUREAFTERTCHFOULEDORDAMAGEDTURBINENOZZLERINGAALLARECORRECTBANDARECORRECTCNONEOFTHEABOVEISCORRECTDONLYISCORRECT6、WHENASUDDENINCREASEINSTEAMDEMANDOCCURSFROMTHEBOILER,THEWATERLEVELINTHEDRUMATTHEHIGHERPRESSUREWILL_ARISEQUICKLYBRISESLOWLYCDROPQUICKLYDDROPSLOWLY7、ONMODERNSHIPS,CENTRIFUGALPUMPWITHASELFPRIMERHASREPLACEDRECIPROCATINGPUMPASBILGEPUMPBECAUSE_ACENTRIFUGALPUMPISCHEAPERTHANRECIPROCATINGPUMPBTHESIZEOFCENTRIFUGALPUMPWITHSAMECAPACITYISSMALLERTHANTHATOFRECIPROCATINGPUMPCCENTRIFUGALPUMPMAKESMAINTENANCEEASIERTHANRECIPROCATINGPUMPDOSEDALLOFTHEABOVE8、WHICHCAUSEOFFOLLOWINGWILLNOTLEADTOREFRIGERATIONPLANTSHORTCYCLEALACKOFREFRIGERANTBREFRIGERANTWITHMUCHWATERCSETDEFECTIVELYLOWPRESSURERELAYDNOCOOLINGWATER9、TORECEIVEOILRESIDUESFROMTHEPURIFICATIONOFFUELANDLUBRICATINGOILSINTHEMACHINERYSPACES,WHATKINDOFTANKSSHOULDBEPROVIDEDONBOARDABILGETANKBSLUDGETANKCOVERFLOWTANKDOILCOLLECTINGTANK10、THEOILDISCHARGEMONITORINGSYSTEMINTHEOILTANKERVESSELSISUSEDFORDETECTINGTHEAMOUNTOFOILDISCHARGEDOVERBOARDTOENSURETHATITDOESNOTEXCEED_A15LITERS/NAUTICALMILEB30LITERS/NAUTICALMILEC60LITERS/NAUTICALMILED100LITERS/NAUTICALMILE11、WHICHOFTHEFOLLOWINGFUNCTIONSISNOTONEOFTHEFUNCTIONSOFAIRCONDITIONERAREFRESHINGTHEAIRBMAKINGPERSONUPSETCADJUSTINGTHEAIRHUMIDITYDADJUSTINGTHEAIRTEMPERATURE12、WHICHOFTHEFOLLOWINGSTATEMENTSISNOTTRUECONCERNINGSYMPTOMOFAFIREINTHESCAVENGEAIRBOXAANINCREASEINTHEEXHAUSTTEMPERATUREOFTHEAFFECTEDCYLINDERBTHETURBOCHARGERMAYSURGECTHEEXPLOSIONPRESSUREINALLCYLINDERSWILLRISEVIOLENTLYDSMOKEFROMTHETURBOCHARGERAIRINLETFILTERWILLBESEEN13WHATTYPEOFELECTRICMOTORISMOSTCOMMONLYUSEDONBOARDSHIPANONSYNCHRONOUSELECTRICMOTORBSYNCHRONOUSELECTRICMOTORCFULLYENCLOSEDELECTRICMOTORDWATERTIGHTELECTRICMOTOR14ACCORDINGTOTHEPRINCIPLEOFFOURSTROKEDIESELENGINE,WHATISTHENUMBEROFITSEFFICIENTWORKSTROKEPERREVOLUTIONA1/2B1C2D315WHATISHEADTANKINTHECLOSEDCOOLINGWATERSYSTEMUSEDFORAFORTHERELEASEOFAIRFROMTHECOOLINGWATERBPROVIDINGEXPANSIONROOMFORHEATEDCOOLINGWATERCAPLACEFORIMPLEMENTINGWATERANDWATERTREATMENTAGENTDALLOFTHEABOVE16THEFUNCTIONOFSYNCHRONOUSCOMPENSATINGMACHINEISTO_AIMPROVEPOWERFACTORBREDUCEVOLTAGEOSCILLATIONCINCREASETHEINSULATIONOFCIRCUITSDELIMINATEREGENERATEDMAGNETICFIELDS17CONTINUOUSSURGINGOFTURBOCHARGERCANBECAUSEDBY_CRASHSTOPOFENGINEINCREASEDBACKPRESSUREAFTERTCHFOULEDORDAMAGEDTURBINENOZZLERINGAALLARECORRECTBANDARECORRECTCNONEOFTHEABOVEISCORRECTDONLYISCORRECT18AFEWSPOTSOFTURBOCHARGERSURGINGCANBECAUSEDBY_CRASHSTOPOFENGINERAPIDINCREASEOFENGINESPEEDAONLYISCORRECTBONLYISCORRECTCBOTHANDARECORRECTDNEITHERORISCORRECT19WITHONEORMORECYLINDERSOUTOFOPERATION,THEENGINESPEEDMUSTBEREDUCEDBECAUSE_AINSUCHCASES,THEAIRSUPPLYISNOLONGEROPTIMAL,THETHERMALLOADWILLBEHIGHERBGOVERNORHUNTINGWILLOCCURCTORSIONALVIBRATIONSASWELLASOTHERMECHANICALVIBRATIONSMAYOCCURDALLOFTHEABOVEARECORRECT20THENAMEPLATEOFAACNONSYNCHRONOUSMOTORSHOWSTHATRUNNINGSPEEDIS1460R/MIN,FREQUENCY50HZYOUCANINFERTHATTHENUMBEROFMAGNETICPOLESIS_A2B4C6D821“380V/220VY/”NOTEDONTHENAMEPLATEOFANONSYNCHRONOUSMOTORMEANSTHAT_ATHEARMATURETERMINALSOFTHEMOTORSHOULDBECONNECTEDINSTARFORMATIONWHENVOLTAGEOFPOWERSUPPLYIS380VBTHEARMATURETERMINALSOFTHEMOTORSHOULDBECONNECTEDINDELTAFORMATIONWHENVOLTAGEOFPOWERSUPPLYIS220VCBOTHAANDBARECORRECTDTHEARMATURETERMINALSOFTHEMOTORSHOULDBECONNECTEDINREVERSEWAYSOFAANDB22THEINITIALVOLTAGEOFSELFEXCITATIONGENERATORISGENERALLYSETUPBY_ARESIDUALMAGNETISMBVOLTAGEREGULATORCELECTRICALCURRENTFOREXCITATIONDTHEOTHERRUNNINGGENERATOR23THEDCEXCITATIONTOTHEFIELDOFBRUSHLESSSYNCHRONOUSGENERATORISGENERALLYPRODUCEDBY_AAEXCITERDRIVENBYTHESAMESHAFTWITHTHEGENERATORBAEXCITERDRIVENBYEXTERNALPRIMEMOVERCGENERATORITSELFDEITHERAORB24WHENASUDDENINCREASEINSTEAMDEMANDOCCURSFROMTHEBOILER,THEWATERLEVELINTHEDRUMATTHEHIGHERPRESSUREWILL_ARISEQUICKLYBRISESLOWLYCDROPQUICKLYDDROPSLOWLY25WHENASUDDENINCREASEINSTEAMDEMANDCOMESTONORMAL,THEDRUMPRESSUREWILL_ANDWATERLEVELINTHEDRUMWILL_ARISE,RISEALSOBRISE,DROPCDROP,RISEDDROP,DROPALSO26WHICHOFTHEFOLLOWINGEQUIPMENTISNOTPOLLUTIONPREVENTIONEQUIPMENTAOILYWATERSEPARATORBSEWAGETREATMENTPLANTCFUELOILSEPARATORDINCINERATOR27WHICHOFTHEFOLLOWINGPUMPSISMOSTSUITABLEFORANOILYWATERSEPARATORARECIPROCATINGPUMPBVANEPUMPCMONOPUMPDAXIALFLOWPUMP28WHICHOFTHEFOLLOWINGPUMPSWILLMOSTAFFECTOILYWATERSEPARATORPERFORMANCEANDGIVETHEWORSTRESULTARECIPROCATINGPUMPBVANEPUMPCSCREWPUMPDCENTRIFUGALPUMP29ONMODERNSHIPS,CENTRIFUGALPUMPWITHASELFPRIMERHASREPLACEDRECIPROCATINGPUMPASBILGEPUMPBECAUSE_ACENTRIFUGALPUMPISCHEAPERTHANRECIPROCATINGPUMPBTHESIZEOFCENTRIFUGALPUMPWITHSAMECAPACITYISSMALLERTHANTHATOFRECIPROCATINGPUMPCCENTRIFUGALPUMPMAKESMAINTENANCEEASIERTHANRECIPROCATINGPUMPDOSEDALLOFTHEABOVE3022TORECEIVEOILRESIDUESFROMTHEPURIFICATIONOFFUELANDLUBRICATINGOILSINTHEMACHINERYSPACES,WHATKINDOFTANKSSHOULDBEPROVIDEDONBOARDABILGETANKBSLUDGETANKCOVERFLOWTANKDOILCOLLECTINGTANK3123ACCORDINGTOTHEPRINCIPLEOFTWOSTROKEDIESELENGINE,WHATISTHENUMBEROFITSEFFICIENTWORKSTROKEPERREVOLUTIONA1/2B1C2D33224THEREWILLUSUALLYBESUMMARIESORDAILYACCOUNTTABLESFORHEAVYOIL,DIESELOIL,LUBRICATINGOIL,ANDFRESHWATER,WHICHWILLBECOMPILED_AATTHEBEGINNINGOFEVERYWATCHBATTHEBEGINNINGOFTHEFIRSTWATCHEVERYDAYCATTHECOMPLETIONOFEVERYWATCHDATNOONEVERYDAY33HOWEVER,WHEREIMMEDIATEACTIONISNECESSARYTOENSURESAFETYOFTHESHIP,ITSMACHINERYANDCREW,ITMUSTBETAKENBYTHEENGINEERINCHARGEWHATDOES“IT”MEANINTHESENTENCEABOVEASAFETYBTHESHIP,ITSMACHINERYANDCREWCIMMEDIATEACTIONDTHEENGINEERINCHARGE34WHATISUSEDFORPREVENTINGPOLLUTIONDAMAGETOTHESEAFROMSHIPSAMARPOL73/78BSOLAS74CSTCW78/95DISPS200235DURINGTOURSOFINSPECTIONINTHEMACHINERYSPACE,YOUFOUNDAFIREONARUNNINGGENERATOR,WHATSHOULDYOUDOFIRSTAINFORMCHIEFENGINEEROFFICERIMMEDIATELYBSTOPTHEGENERATORCLETTHEDUTYOFFICERINBRIDGEDETERMINEHOWTODODWAITFORHELP36WHICHCAUSEOFFOLLOWINGWILLNOTLEADTOREFRIGERATIONPLANTSHORTCYCLEALACKOFREFRIGERANTBREFRIGERANTWITHMUCHWATERCSETDEFECTIVELYLOWPRESSURERELAYDNOCOOLINGWATER37IFTWOFUELSERVICETANKSAREINSTALLED,THEEMPTYTANKSHOULDBEPUMPEDUPDIRECTLYITISEMPTYWHATISTHEMEANINGOF“DIRECTLY”INTHESENTENCEABOVEAATONCEBASSOONASCQUICKLYDSTRAIGHT38FROMVIEWPOINTOFPRACTICE,ITISSOMETIMESIMPORTANTTODETECTABNORMALHAPPENINGSINTHERUNNINGGEARBY_AAKEENSENSEOFHEARINGBRICHTHEORYCCOMMUNICATINGABILITYWITHOTHERSDREPETITIONWORK39WHEREISTHECOOLINGWATERFROMTHECOMPENSATINGTANKINTHECOOLINGWATERSYSTEMOFMAINENGINELEADTOADISCHARGESIDEOFTHECENTRIFUGALPUMPBSUCTIONSIDEOFTHECENTRIFUGALPUMPCTHELOWESTPOINTOFTHECOOLINGWATERSYSTEMDINLETOFTHEMAINENGINE40CRUDEOILWASHINGOFCARGOTANKSHASTHEFOLLOWINGADVANTAGESEXCEPTFOR_AREDUCINGTHEEROSIONOFTHECARGOTANKSBINCREASINGTHETOTALQUANTITYOFOILTOCARRYCREDUCINGTHEQUANTITYOFWATERCONTAINEDINOILDREDUCINGCARGODISCHARGEDTIME41WHICHSYSTEMSINTHEHYDRAULICSYSTEMSOFCRANEALWAYSHOLDSSINGLESIDEOFLOADAHOISTINGSYSTEMONLYBHOISTINGSYSTEMANDLUFFINGSYSTEMCHOISTINGSYSTEMANDSLEWINGSYSTEMDSLEWINGSYSTEMONLY42ONWHATDOYOUDEPENDHAVINGTHEAIRCOOLEROFMAINENGINECHEMICALLYWASHEDAINCREASEDAIRPRESSUREDIFFERENCEBEFOREANDAFTAIRCOOLERBREDUCEDEXHAUSTTEMPERATUREINALLCYLINDERSCREDUCEDTEMPERATUREDIFFERENCEBETWEENWATERINLETANDOUTLETDBOTHAANDC43WHICHONEOFTHREEELEMENTSFORAFIREONATANKERVESSELISMOSTDIFFICULTTOELIMINATEISOLATEAACOMBUSTIBLEELEMENT,FUELBENERGYRESOURCESFORIGNITIONTOSTARTTHECOMBUSTIONCOXYGENTOSUPPORTTHECOMBUSTIONDBOTHAANDCARECORRECT44THECRANEJIBISRAISEDANDLOWEREDBYMEANSOF_AAMOORINGWINCHBAHOISTINGWINCHCASLEWINGWINCHDALUFFINGWINCH45THEGAUGEPRESSUREINSIDEACONTAINERIS05KG/CM2,THENWHATISTHEABSOLUTEPRESSUREEXERTEDTOTHEINSIDESURFACEOFTHISCONTAINERA005MPAB095MPAC105MPAD05MPA46APROCESSOFCOMPARINGTHEACTUALPERFORMANCEOFAMACHINEWITHTHEINTENDEDPERFORMANCE,ANDTHENADJUSTINGTHEMACHINETOREDUCEANDEVENTUALLYELIMINATETHEDIFFERENCEBETWEENTHEACTUALANDINTENDEDPERFORMANCEISCALLED_AOPENLOOPCONTROLBFEEDBACKCCOMBININGCONTROLDINTEGRALPROCESS47WHATISTHERESULTOFCONVERTING10INTODEGREEOFFAHRENHEIT基础P169华氏18摄氏32A0B18C32D5048WHENCOMPARINGTHEAIRWITH50OFRELATIVEHUMIDITYWITHTHEAIRWITH100OFRELATIVEHUMIDITY,WHICHONEWILLHOLDMOREWATERATHEFORMERBTHELATTERCNOTFORSUREDSAMEEACHOTHER49WHICHOFTHEFOLLOWINGEQUIPMENTCANNOTBEUSEDFORTHEWASTEHEATRECOVERYOFTHEM/ETOFURTHERIMPROVEITSTHERMALEFFICIENCYAMETURBOCHARGERBEXHAUSTGASBOILERCINCINERATORDFRESHWATERGENERATOR50FORAGIVENEXHAUSTGASBOILER,WHATISTHEQUANTITYOFITSEVAPORATIONMAINLYDETERMINEDATHETEMPERATUREANDFLOWQUANTITYOFTHEEXHAUSTGASFROMMEBTHEQUANTITYOFSTEAMDEMANDEDCTHEROTARYSPEEDANDTHECOOLINGWATERTEMPERATUREOFMAINENGINEDEFFICIENCYOFMETURBOCHARGER51THEWATERLEVELOFANEXHAUSTGASBOILERWHICHISINDEPENDENTOFTHEAUXILIARYBOILERANDJUSTASTHEEXTRAHEATINGSURFACEOFIT_AWILLBEMODULATEDINPROPORTIONBWILLBEMODULATEDINPROPORTIONANDINTEGRALCWILLBEMODULATEDINPROPORTIONANDDIFFERENTIALDWILLNOTBEMODULATEDATALL52INHEAVYMARINEENGINETHEPRACTICEISTODRIVETHEENGINEON_WHICHHASPREVIOUSLYBEENSTOREDINSTARTINGAIRRESERVOIRSAELECTRICMOTORBHYDRAULICMOTORCCOMPRESSEDAIRDTURNINGGEAR53WHICHONEOFFOLLOWINGSTATEMENTISNOTTRUECONCERNINGTHESUITABLESITESOFTHEDIRECTACTINGRELIEFVALVEANDTHEPILOTOPERATEDRELIEVEVALVEATHEDIRECTACTINGRELIEFVALVEISUSEDFORCONTROLLINGLOWERFLOWSANDPRESSUREBTHEPILOTOPERATEDRELIEFVALVEISUSEDFORCONTROLLINGHIGHERFLOWSANDPRESSURESCTHEPILOTOPERATEDRELIEFVALVEISUSEDFORCONTROLLINGLOWERFLOWSANDPRESSURESDTHECONTROLLINGACCURACYOFDIRECTACTINGRELIEFVALVEISWORSETHANTHATOFTHEPILOTOPERATEDRELIEFVALVE54WHICHOFTHEFOLLOWINGSTATEMENTSCONCERNINGTHEWATERTUBEANDFIRETUBEBOILERSISNO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