完成蒸气压缩式制冷循环的基本元件是 _______。

Iftheenginedoesstartonairbutcombustiondoesnotimmediatelybeginthecause maybe_____.

_____thesuperchargepressureis_____poweranenginedevelops.

Fuelinjectionvalvesshouldbetakenoutcleanedandliftingcheckedevery_____.

Seawaterisnotdirectlyusedasacoolantforenginesbecauseofits_____.

Inordertoensureperfectatomizationthefueloil_____beforeinjection.

The_____orbalancetankcollectsthere-circulatedfueloil.

Engagetheflywheelwiththe_____.

Duringthesuctionstrokethepistonismoving_____.

Modernengines_____exhaustgasdriventurbo-chargerstosupplypressurizedfreshair forscavengingandsupercharging.

Standbyenginemeans_____.

Increasingthetemperatureofafuelwillreduceits_____.

TheabbreviationTDCmeans_____.

Administrationsshouldbearinmindthesignificanceof_____inmaintainingsafetyof lifeandpropertyatseaandinpreventingmarinepollution.

Beforepumpingupthecrankcaseoil_____shouldbeworkedbyhandtominimizecorrosive actionontheliners.

Thedevelopmentof_____haskeptpacewiththeincreasingdemandsmadebythesteady riseinpowerproducedbymodemmarinediesels.

_____theenginesthedieselengineis_____usedengineonboard.

Measure_____bymeansofleadwire.

A-framesaremountedonthebedplateandsupport_____andcylinderblock.

Thecylindercoversandthelinersareboltedtogetherbymeansof_____.

Compressedairissuppliedbyaircompressionto_____.

Thecoolingliquidusedforthecylindermaybereferredtoas_____.

Thecross-headshoesarewhitemetal_____.

Eachcrankismadeupoftwocrankwebsjoinedbyacommon_____towhichthebottom endbearingisfitted.

Agovernorautomaticallycontrolsenginespeedbyregulating_____.

Thecoolingwatertemperature_____overaperiodof8hoursandthenshutdown.

Thecrownisfairlythickwiththecylindricalparts_____toathinnersection.

Thecrankshaftisofthesemibuilttypewiththejournal_____theforgedorcaststeel crankthrows.

_____allowsforexpansionandwatermakeupinthewatercoolingsystem.

_____oftheA-framesthereisastrongcastironframecalledthescavengingairbox.

Smallerenginescanbemademorerigidthanlargeonesandmaynothave_____.

_____isasourceofpowerbywhichthedieselenginemayoperate.

Ifthesump_____weretorisethiswouldindicatewaterleakageintotheoilandan investigationintothecausemustbemade.

Foradieselenginewhenthepistonisatthe_____theclearancevolumeisthelargest.

ThecompleteassemblyofbedplateA-framesandcylinderblockisheldtogetherby_____ toformarigidstructure.

Inatypicalfuelsystemtheoilisstoredin_____inthedoublebottom.

对制冷剂热力性质的错误要求是_______

在同样蒸发压力下R12R22R134a作制冷剂时蒸发温度高低的次序是_______

Anumberofcylinderlinersareenclosedinonecastironcasingtoforma_____.

Failureoffuelinjectionisusuallyduetotroubleinthe_____.

Freshwaterisusedforthecoolingofcylinderjacketsand_____ofthemarinediesel engine.

Modemenginesmakeuseofexhaustgasdriventurbo-chargerstosupplypressurizedfresh airfor_____andsupercharging.

Afterpassingthroughtheturbinetheexhaustgasisconductedoutintothe_____.

_____mayhavetwoemergencysourceofpowerthusrequiringtwoemergencyswitchboards.

_____orairventingarrangementisfittedtothefuelsupplypassage.

Aftertheorder_____isgiventheairsystemisshutdowntheturninggearputin.

Engine_____referstotherelativetimeofpositionofcrankatwhicheachoperation duringthecycleiscommencedandiscompleted.

氟里昂溶入滑油中会使其_______

Itisnecessarytoremove_____fromthecoolingspaces.

Accordingtothewaytheenergyoftheexhaustgasesisutilizedpressure-chargingcan bedividedintotwomainsystemsnamelytheconstant-pressuresystemand_____.

Headtankshouldbeusedtoremove_____fromcoolingwater.

AdieselenginescrankcaseoillevelisfoundtobetoohighYoushouldsuspectthat_____.

Inordertoincreasethewearingresistancethecylinderlinersurfacesaresometimes _____.

Excessiveclearancesinthemainorcrank-pinbearingswillsometimesbeindicatedby _____beforeanybearingknockisheard.

Foranordinarymodemmarinefour-strokeenginetheinletvalvesclose_____.

Achargeoffreshairisdrawnintotheenginecylinderandthen_____bythemoving piston_____veryhighpressure.

Thecleanedheatedoilafterpassingthroughthecentrifugesistobepumpedtoa_____.

A:PleasetellmethespecificationsandquantityB:_____.

Fuelinjectedintoadieselenginescylinderisignitedby_____.

Alltheringsareslightlyroundedontheirexternaltopandbottomedgestokeepthe oilfilmonthecylinderlinerduring_____fornewpistonrings.

Pleasedrawouta0.lmm_____betweenthetwohalvesofthebearingtoreducetheclearance.

Crankshaftsofmediumspeedenginesare_____fromasinglepieceofsteel.

Oilwilllubricatetheseparts_____effectivelythanwater.

_____fueloils_____lubricatingoilsrequiretreatmentbeforepassingtotheengine.

Theconnectingrodlargeendbearingshellgenerallyhastagsforlocationandoilgrooves roundthecenterofitsaxiallengthwhichcorrespondwithgroovesinthe_____through whichoilistransmitteduptherodtolubricatethesmallend.

Dieselenginesarestartedbysupplying_____intothecylindersintheappropriate sequencefortherequireddirection.

Keepcompartment_____asthegasgivenoffcanbedangerous.

Bearingknocksarelikelytooccurfrom_____.

Pumpsandfinefiltersarearranged_____withoneasstandby.

Increasedair_____willraisescavengeefficiencyandallowagreatermassofairto becompressed;morefuelmaynowbeburnedgivinganincreasedpower.

Mainbearingsarerequiredtosupportthecrankshaftateach_____.

Emulsionoilsandsodiumnitritearebothapprovedadditivesbut_____cannotbeused ifanypipesaregalvanizedorifsolderedjointsexist.

Inanoilcoolercirculatedbyseawatertheoilisatalargerpressuretheresult beingthatanyleakinthecoolerwillmeanalossof_____.

_____isfullyfloatinginbothconnectingrodsmallendandthepistonskirt.

_____shouldnotundertakeanytaskwhichwillinterferewiththesupervisionduties relatingtothemainmachineryandassociatedequipment.

Leakyexhaustvalvewillresultinwhichofthefollowing?1highexhausttemperature; 2lowcompressionpressure;3lowfiringpressure.

OnceafireisdetectedtheengineshouldbesloweddownOnnoaccount_____.

_____issecuredbymeansofside-chockboltsandend-chockbolts.

Itisnecessaryforus_____afterhavingservedforacertainperiod.

Generallythegudgeonpinisfullyfloatinginbothconnectingrodsmallendand_____.

Coolingofengineisachievedbycirculationacoolingliquidaroundinternalpassages withinthe_____.

Castironcarrierrings_____machinedgroovesareprovidedforallthepistons.

InthesentenceInsomedesignsthecylinderoilistimedsothattheoilinjectsonly onthepistonringbelt.thepistonringbeltmeans_____.

If_____aretakenatregularintervalsanyunequaldistributionofloadwillbeeasily foundout.

Eachcylinderisclosedatthetopbya_____madeofaspecialheat-resistantsteel.

Cracksinthecylindersandcylindercoversmay_____unequalheating.

A_____isthefoundationoftheenginewithoutthesupportofwhichtheshaftalignment inparticularandenginestructureasawholewouldinevitablybelost.

Beforestartingtheenginetheairbottleshouldbe_____.

Thecylinderlinersaremadeof_____andthecylindersurfacesaresometimes chromium-plated.

Inafour-strokeenginesthecamshaftrotatesat_____.

Ingeneral_____issuitablefordeliveringsmallquantitiesathighpressure.

Thecrank-roomcovershouldnotbeopeneduntilatleast_____minutesaftertheengine stops.

_____istheremovalofexhaustgasesbyblowinginfreshair.

Itisveryimportantthateachcylindershouldbe_____scavengedbeforethecharged airiscompressed.

Anelectricallydrivenautomaticallyoperatingauxiliaryblowerisprovidedforslow speedand_____ofalowspeeddieselengine.

Thecompressedairissuppliedby_____totheairreservoirs.

Fuelpumpindexis_____.

Thecylinderheadcylinderlinerand_____formthecombustionchamber.

Sincetheburningorcombustiontakesplacewithintheengineitselftheengineisknown as_____.

Thedesignof_____issimilartothatofthemainbearing.

Onafour-strokedieselenginewhenthepistonisdrivendownwardsbytheexpanding gasitdeliverspowertothecrankshaftthroughthe_____.