To start the ejection process the oil feed to the centrifuge is first shut off and the oil remaining in the bowl removed by admitting _____.
所属题库：二管轮
题目介绍:
Tostarttheejectionprocesstheoilfeedtothecentrifugeisfirstshutoffandthe
oilremaininginthebowlremovedbyadmitting_____.,
flashing water?operating oil?flushing water?sealing water? 本题为最佳选择题收录于二管轮题库中。
注意事项：
本内容均收集于互联网，版权等归原权属方所有,仅供网友学习交流,未经权属方书面授权,请勿作他用. 若发现本图侵犯了您的权益,请联系我们快速处理,感谢您对互联网分享方式的理解与配合。
相似内容
-
Whichofthefollowingpumpsareself-primingandcandealwithliquidfromalevel belowthepump:1reciprocating;2vane;3gear.
-
Misalignmentofthedriveshaftandpropellershaftflangescanbedetectedbyusing adialindicatoror_____.
-
Therateofheattransferinawater-tubeauxiliaryboilercanbeincreasedby.
-
Througha_____pumptheliquidistransferredfromthesuctiontothedischargeby themechanicalvariationofthevolumeofachamberorchambers.
-
Athrustbearingisusedwithapropulsiondieselengineto_____.
-
Thedonkeyboilermaybegivenabottomblow_____.
-
Thetemperaturedifferencebetweentheinletandoutlettemperatureofthelubeoilcooler inthelubricatingsystemforthedieselengineisgenerallybetween_____.
-
Withthecrankinpositionintheenginesomemeasurementscanbetakenbyaspecial bridgegaugeand_____.
-
WithVITunitthetimingoffuelinjectionofanenginecanberegulatedautomatically accordingtothe_____.
-
Themaximumpressuredevelopedbyawasteheatboilerisdeterminedbythemainengine exhaust_____.
-
In_____pumpsacloseddischargevalvewillcauseburstingdischargepressure.
-
Whichofthefollowingdevicesiscommontobothmechanicalandhydraulicgovernors?
-
Inafour-stroke/cycledieselenginethecamshaftrotatesat_____.
-
Adonkeyboileris_____.
-
Fusibleplugsareinstalledinfire-tubeboilersto_____.
-
Successfulcombustioninsidethecylindersofadieselengineisdependentupon_____.
-
Thereplacementpipingfordieselenginehighpressurefuelsystemsmustbethesame lengthanddiameterastheoriginalpipingto_____.
-
Gearpumpsareofpositivedisplacementtypepumpsbecausetheydischargeanearconstant amountofliquid_____pressure.
-
Fuelinjectionsystemsmeterfuelatomizefueland_____.
-
Whichofthefollowingwilltakeplaceiftheclearanceofthemainbearingsareexcessive?
-
Indirectcoolingoffuelinjectornozzleholdersfordieselenginesisaccomplished primarilyby_____.
-
Fueloilbeginsinjectionintothecylinderofafour-stroke/cycledieselengineduring the_____.
-
Temperaturecontrolvalvesinstalledinthejacketcoolingwatersystemofadieselengine modulatestherateofwaterflowthroughthe_____.
-
Foragivenfuelachangeinthecompressionratiowillaffecttheignitionlagbywhich ofthelistedmeans?
-
The_____pumpdischargesanearlyconstantamountofliquidregardlessofpressure.
-
Electricallyoperatedsafetydevicesonauxiliarydieselenginesfunctiontostopthe engineby_____.
-
Impropercoolingofadieselenginecylinderlinerduetotheaccumulationofscale depositsmaycause_____.
-
Theboilerfeedwatercheckvalvesarelocatedonthe_____.
-
Iffuelinjectiontoafour-stroke/cycledieselenginebeginsearlierthandesigned ignitionmaybedelayedbecausethe_____.
-
Whichofthefollowingdevicesisacommonbasicelementwithnearlyallmechanical governors?
-
Youincreasedthe_____to150tonsthat’swhythefueloil_____.
-
Whichofthefollowingmaycausethatanenginedoesntrunonstartingair?
-
Inusingreductiongearstoobtainefficientpropellerspeeds_____.
-
Largetwo-stroke/cyclemainpropulsiondieselenginecylinderscanbesuccessfully pressurechargedduringnormaloperationbyusingthe_____.
-
Thecamshaftonafour-stroke/cycledieselengineprovidesameanstooperatethe_____.
-
Youshouldfrequentlycomparedrum-mountedandremote-readingwaterlevel indicators_____betweenthesehavecontributedtofailuresbecauseofoverheating throughshortageofwaterwhenaboilerwasbeingoil-fired.
-
Whatpreventativemaintenanceshouldbedonefrequentlytodieselenginestartingair receivers?
-
Theamountoffluiddeliveredbyacentrifugalpumpcanberegulatedby_____.
-
Atwo-strokedieselengineexhausttemperaturewillbelowerthanafour-strokediesel engineofthesamedisplacementbecausethe_____1MEPislowerandthescavenging airiscoolingtheexhaustgases;2valveoverlapinafour-stroke.
-
Afteranormalorsafetyshutdownautomaticcombustioncontrolsystemsforanauxiliary boileraredesignedtopreventtheimmediaterefiringofaburnerinorderforthe_____.
-
Adieselengineisoperatingat1800RPManddrivingapropellerat600RPMWhatisthe speedreductionratio?
-
Thefurnaceofanoilfiredboilershouldbe_____beforetheoperatingburnerislit.
-
Awasteheatboilerisinstalledonsomedieselpropelledvesselsto_____.
-
Ifthechemicalanalysisofalubeoilsampletakenfromadieselengineindicatesan increasedneutralizationnumberthe_____.
-
Ina_____boilerthehotgasesfromthefurnacepassthroughthetubeswhilethewater isontheoutside.
-
Throttlinginthe_____lineofacentrifugalpumpinvolvestheriskofthepumpcavitation.
-
Theminimumspeedanenginemustattainbeforeignitioncanoccurdependsupon_____.
-
Inasimplemechanicalgovernorthe_____.
-
Whatisthefunctionofthethrustbearing?
-
Whencentrifugingheavyfueloilanimportantfactortoconsideristhe_____1flow rate;2viscosityofthefueloil.
-
Areciprocatingpumpbelongsto_____accordingtoitsworkingprinciple.
-
Ifadieselengineisdifficulttostartandoperateswiththeenginetemperatureslower thannormalyoushouldsuspectthatthe_____.
-
Thepurposeofthedeliverycheckvalveusedinadieselfuelinjectionjerkpumpis to_____.
-
Alargelow-speedmainpropulsiondieselengineusesseawatertodirectlycoolthe _____.
-
Thedieselenginevalvesubjectedtomostsevereconditionsofserviceisthe_____.
-
Ifyoudon’tunderstandthemeaningofthetechnicaltermsofthedieselengineyou can_____thedictionaryofmachinetechnology.
-
Ifthejacketwatertemperatureofanoperatingdieselenginesuddenlyrisesabovenormal thecausecanbeattributedto_____.
-
Inthecombustionchamberthepartwhosesurfaceisexposedtothehighesttemperature isthe_____.
-
Astothepistoncoolingofthefollowingwhichstatementisnottrue?
-
Adecreaseintheflashpointofdieselenginelubeoilindicatesthelubeoilhasbecome _____.
-
Anadvantageofaluminumpistonswhencomparedtocastironpistonsis_____.
-
Withregardstoadieselenginecrankcaseexplosionthemostviolentisthe1primary explosion;2secondaryexplosion.
-
Ifthefeedpumpforanauxiliaryboilerfailstodeliverthefeedwatertotheboiler thecausemaybe_____.
-
Whichofthefollowingconditionscouldcausethefeedpumpforanauxiliaryboilerto losesuction?
-
Theairsuppliedtoadieselengineiscompressedto_____1provideheatfortheignition ofthefuel;2decreaseinjectiondelay.
-
Anincreasedpressuredifferentialbetweentheinletandoutletofastrainerusually indicatesthestraineris_____.
-
Ifthemainengineofanunattendedengineroomshutsdownautomaticallyitwillbe indicatedbyanalarm_____.
-
Whichofthefollowingpumpsbelongstocentrifugalpump?
-
Thehighestpressureinadieselenginecylindernormallyoccurs_____.
-
Adieselenginecrankcaseventilationsystem_____.
-
Withfour-strokeenginesittakesfourrevolutionsofthecrankshafttomake_____ powerstrokes.
-
Latentheatchangesthe_____ofwater.
-
Adieselengineisoperatingwithexcessivelyhighexhausttemperaturesatall cylindersTocorrectthisconditionyoushouldFIRST_____.
-
Ifthevalvetappetsinadieselenginearesetatgreaterclearancesthanthosespecified bytheenginemanufacturerthosevalveswill_____.
-
Todetermineifthelubeoilfilterelementsneedchanging_____.
-
Loadcontrolonadieselengineisaccomplishedby_____.
-
Oxygencorrosioninauxiliaryboilersispreventedbytreatingtheboilerfeedtankwith eithersodium_____.
-
Whatfunctionisprovidedbythecrankcaseventilationsystemonsomedieselengines?
-
Whichofthefollowingisafactoroffueloilalmosthavingnothingtodowiththe formationofcombustionproducts?
-
Thesmallendoftheconnectingrodisattachedtothepistonwitha_____.
-
Supposetheratedcapacityofthemainengineofashipis10000kWat100ratedrpm thenwhenat80rpmitscapacityshouldbe_____.
-
Acentrifugearrangedtoseparateimpuritiesandsmallamountsofwaterfromoilisknown as_____.
-
Thefuelsupplysystemtoanautomaticauxiliaryboilerwillbeautomaticallyshutdown iftheboiler_____.
-
Inmotorship_____isoftenusedtorecoversomeoftheheatcarriedintheexhaust gasesfromthemainengine.
-
Themainpurposeofthepistonoilscraperringsisto_____.
-
Asforahydraulicvanepumpwhichofthefollowingisincontactwiththevanesduring working:1therotor;2thepumpshaft;3theexternalsurfaceofthehousing.
-
ForVee-formengines_____isshapedtogiventwosloppingsurfaceonwhich_____are placedatthecorrectrelativeangletoeachother.
-
Thespeedofthecamshaftinatwo-stroke/cycledieselenginerunningat950RPMis _____.
-
Theamountoffluiddeliveredbyapositivedisplacementpumpcanberegulatedby_____.
-
Whichofthefollowingpumpswillbuildupaburstingpressureorstalltheirmotors ifthedischargevalvesareclosed?1gear;2centrifugal;3screw.
-
Theamountoffluiddeliveredbyahelicalpumpcanberegulatedby_____.
-
Thejacketwatertemperatureinadieselengineclosedfreshwatercoolingsystemis normallycontrolledby_____.
-
Themainfunctionoftierodsintheconstructionoflargelowspeeddieselengines isto_____.
-
Scaleanddirtaccumulationinthewatersideofalubeoilcoolerwillbeindicatedby agradualincreaseinthelubeoil
-
Whichofthefollowingmayhardnessoftheboilerwatercause?1scaleformation;2 tubefailure;3corrosion.
-
WithVariableInjectionTimingthestartofinjectionmaybe_____astheengineload isreduced.
-
Ifthetemperaturedropslowenoughoilwillnotflow_____justtellusthetemperature.
-
Theinternalpartoftheboileriffound_____hastobechemicallywashedbyyard.
-
Athree-waythermostaticcontrolvalveregulatesthedieselenginecoolingwater temperaturebypassingaportionofthewater_____.
-
Adazzlingwhiteburnerflameintheboilerfurnaceindicates_____.
你可能感兴趣的试题
- Ifoveraperiodofweekstheair-boxpressureofaturbo-chargeddieselengine operatingatfullloadappearstobedroppingoffthecausecanbe_____.
- Inadieselenginelubeoilsystemwhichofthefollowingpartsshouldbelubricated first?
- Impropermaintenanceofthefueloilburnersinanautomaticallyfiredauxiliaryboiler couldresultin_____.
- ____thecylinderwallstheheatpassesthroughthembyconduction.
- With_____unitthetimingoffuelinjectionofanenginecanberegulatedautomatically.
- Directionalintakeportsindieselenginesareusedto_____.
- Tocheckthesettingoftheoverspeedtriponadieselpoweredgeneratoryouwoulduse a_____.
- Theproceduresrecommendedforauxiliaryboilershavinghighsalinityinclude_____.
- Themostimportantfactorinengineperformanceistheactualpoweroutputattheend ofthecrankshaftavailablefordoingworkThisisknownas_____.
- Lossoflubricatingoilpressuretothemainpropulsiondieselenginewillactuatea/an _____.
- Thewaterinanauxiliaryboilershouldbetestedforchloridecontenttodetermine_____.
- Thedevelopmentofoils_____theincreasingdemandsmadebythesteadyriseinpowers producedbymodemdiesels.
- Theoutletfromanexpansiontankofaclosedfreshwatercoolingsystemshouldbepiped tothe_____.
- Foracontinuousoperationdieselengineaduplexfilterunitwouldbethebest arrangementbecause_____.
- Inabypasstypelubricationsystemforadieselenginethedirtyoillinetothe centrifugeshouldbetakenfromthe_____.
- Adieselenginepistonringfaceisindirectcontactwiththe_____.
- Tosuccessfullyreduceanexcessivelyhighdieselengineexhaustgastemperatureyou should_____.
- Tominimizecorrosionfueloilstrainerdisksspacersandscraperbladesaremadeof _____.
- Engineprotectionbymeansofanalarmorshutdowncontrolcanbeobtainedwithdevices thataresensitiveto_____.
- Theoverspeedingofthedieselenginedrivinganelectricgeneratorcouldcause_____.
- Thelinearmotionofadieselenginepistonisconvertedtotherotarymotionrequired todrivegearspropellershaftsandgeneratorsbythe_____.
- Adirtydieselengineoilfilterelementcanbestbedetectedby_____.
- Theeffectivestrokeofaconstant-strokeindividualfuelinjectionpumpisvaried bythe_____.
- Theamountoffluiddeliveredbyascrewpumpcanberegulatedby_____.
- Twoimportantconsiderationsfortheproperlubricationofadieselengineincludethe deliveryoftheoilinsufficientamountandthe_____.
- Theexpansiontankinadieselengineclosedfreshwatercoolingsystemislocatedat _____.
- IfanoperatingauxiliaryboilerhasawaterpHreadingof7youshould_____.
- W.H.Rstandsfor_____.
- Thetrouble-freelifeofanengineindicates_____.
- Whichofthefollowingmethodsisnormallyusedtolubricatebearingsinasmall high-speeddieselengine?
- Whentheprimemoversoftwoparalleledgeneratorsareequippedwithmechanicalhydraulic governorsandareoperatingwithintheirdesignedrangetheunitwiththe leastamountofspeeddroopwill_____.
- Exhaustvalvegroovingandcorrosioniscausedbycertaincomponentsofresidualfuel oilThesecomponentsaresodiumsulfurand_____.
- AftertheshipisoutoftheharbourandinFullSpeedwellchange_____.
- Thewaterinanoperatingauxiliaryboilershouldbetestedforalkalinityandchloride contenteach_____.
- Whatisthepurposeofareliefvalve?
- Priortolightingoffacoldautomaticallyfiredauxiliaryboileryoushould_____.
- Therateofcylinderlubricatingoilmeteredtoeachcylinderofalargelow-speedmain propulsiondieselengineis_____.
- Whichstatementaboutdieselenginecombustionistrue?
- Anaturallyaspirateddieselengineatfullthrottlewillhaveanintakemanifoldpressure _____.
- Emulsificationofoilwilloccurwhenmixedwith.
- Whichofthesubstanceslistedissatisfactorilyremovedfromthefuelbyacentrifugal oilpurifier?
- Thepipefrictionandtheresistancewill_____asaresultofanincreaseintheamount offluidflowingthroughthesystem.
- ____intothecylinderbecausenofuelcanburn_____it.
- High-speedrotationinacentrifugalpurifiercanproduceaforce_____theforceof gravity.
- Indieselenginesdesignedwithacrossheadthemotionofthepistonrodcanbedescribed as_____.
- Fuelinjectorsusedinheavyfueloilsystemsareusuallyprovidedwithcoolingto reduce_____.
- SomepumpsusepackingassealingglandTheglandshouldbe_____.
- Inanydieselengineclosedfreshwatercoolingsystemthelowestpressureexistsat the_____.
- Thequalityofthefueloilandlubeoil_____Imafraid.
- Theboilerfeedpumpdischargepressureishigherthanthesteamdrumpressureto_____.
- Whichofthefollowingstatementsistrueconcerninganoilcooler?.
- Thelongertheignitiondelayperiodoccursinadieselenginethe_____.
- Thetubeinaboilershouldbeblindediffound_____.
- Thebearingsusedtosupportthecrankshaftaregenerallycalled_____.
- Connectingrodsinadieselengineareusedtoconnectthe_____.
- Impuritiesinthefueloilwillaffecttheoperationoftheenginewhichhas_____the useofseparatorandsomeotherdevices.
- With_____thecorrosionproblemsaremuchreducedinacentralcoolingsystem.
- Clearancevolumescavenginginaturbochargedfour-stroke/cycledieselengineis accomplished_____.
- Thedischargeflowofareciprocatingpumpis_____.
- Lubricatingoilsystemsfordieselenginejournalbearingsareusuallylubricatedby whichofthefollowingtypesoflubricatingoilsystems?
- Whichofthefollowingstatementsconcerningfire-tubeboilersiscorrect?.
- Anelectricheaterbuiltintosomesmallerdieselenginesisusedto_____.
- Thepurposeofthesafetyreliefvalvesinstalledonanauxiliaryboileristo_____.
- Amongthemainpropulsionunitsonboardtheshipwiththesamecapacitythelightest oneis_____.
- Forproperoperationauxiliaryboilerfeedwatermusthavewhichofthefollowing characteristics?
- Properfilteringandstrainingoffueloilisimportantbecausethe_____.
- Combustionknockcanoccurinthecylindersofadieselengineunderanycondition permitting_____.
- Lubeoilcannotbeefficientlyfilteredifits_____.
- Sincetheenginedoesn’tworkwellyou’dbetter_____assoonaspossible.
- Oilwaterseparatorsareusedtoensurethatshipsdontdischargeoilwhenpumpingout _____.
- Excessivevibrationofanautomaticallyfiredauxiliaryboilercanbecausedby_____.
- Mostfuelinjectionnozzlesareopenedby_____.
- Scavenginginafour-stroke/cycledieselengineoccursduringthe_____.
- Theopeningofanexhaustvalveonamodemlargelow-speedmainpropulsiondiesel enginemaybeactuatedby_____.
- Whichofthefollowingmaytakeplaceiftheclearanceofthemainbearingsareexcessive?
- Therequiredamountinthechangeofspeednecessarybeforeagovernorwillmakea correctivemovementisknownas_____.
- Mechanicallubricatorsfordieselenginecylindersareusuallysmallreciprocatingpumps whichare_____.
- Througha_____pumptheliquidistransferredfromthesuctiontothedischargeby themechanicalvariationofthevolumeofachamberorchambers.
- Enginedisplacementisequaltothecylinder_____.
- Thepoweroutputofaturbochargeddieselenginewilldropifthecoolingwaterflow throughtheafter-coolerisinterruptedbecausethe_____.
- Thehighestpressureinanycloseddieselenginefreshwatercoolingsystemisatthe _____.
- Properatomizationoffuelindieselenginecombustionchamberswill_____.
- Fuelisadmittedtoadieselenginecylinderthroughthe_____.
- Inadieselengineanextremelyleakingexhaustvalvecancause_____.
- Thepressureheadofapumpisgivenintheunitof_____.
- Theamountoffuelinjectedinaparticulartimeordegreeofcrankshaftrotationis termed_____.
- Highexhausttemperatureandblacksmokeexhaustingfromanauxiliarydieselenginecan becausedby_____.
- Whichofthefollowingcanbeobtainedbymeansofanindicatorcard?
- ThePRIMARYfunctionofawasteheatboileristo_____.
- Beforeusingoroperatinganyequipmentyoushouldfirst_____itsmanualthoroughly andunderstanditscontents_____.
- Whileengineisinoperationthepistonmovesupanddownthuscausingtherotation ofthe_____.
- Themostimportantfactorthatcausesthewearoftheenginepartsis_____.
- Theamountoffluiddeliveredbyagearpumpcanberegulatedby_____.
- Anindicationofadieselengineairintakebeingpartiallycloggedis_____.
- Thewaterinanauxiliaryboilershouldbetesteddailyfor_____.
- Inalargeslow-speedmainpropulsiondieselenginewhichofthepartslistedisunder tensionwhentheengineisrunning?
- Finsareinstalledonthegeneratingtubesurfacesinwasteheatboilersto_____.
- Highfiringpressuresandalowexhausttemperatureinadieselenginemayresultfrom _____.
- Therotarymotionofadieselenginecrankshaftisobtainedfromtheupanddownmotion ofthepistonviathe_____.
- Asforanoil-firedboilerifatanormalsteamingconditionandwatergoesoutofsight ingaugeglassestheactionyoushouldtakeis:1secureoiltofires;2increase feedpumppressure.