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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,DROPALSO26WHICHOFTHEFOLLOWINGEQUIPMENTISNOTPOLLUTIONPREVENTIONEQUIPMENTAOILYWATERSEPARATORBSEWAGETREATMENTPLANTCFUELOILSEPARATORDINCINERATOR27WHICHOFTHEFOLLOWINGPUMPSISMOSTSUITABLEFORANOILYWATERSEPARATORARECIPROCATINGPUMPBVANEPUMPCMONOPUMPDAXIALFLOWPUMP28WHICHOFTH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