节流调速与容积调速相比 _____。

起重机构的泵控型液压系统采用_____限速

Coolingofenginesisachievedbycirculatingacoolingliquidaroundinternal_____ withintheengine.

Beforereplacingapistonyoushouldchecktheringstoseethatallclearancesandgaps are_____thepermissibletolerances.

Foranordinaryfour-strokeenginetheexhaustvalvesopen_____.

Alubricantoftenhastoperformmanydutiesinanysituationinadditiontoits fundamentaljobof_____.

影响8FS10制冷压缩机余隙容积的垫片在_______

_____forthecamshaftgeartrainistakenfromaspurgearwhichforasixcylinder engineisatthecouplingend.

Iftheenginedoesstartonairbutcombustiondoesnotimmediatelybeginthecause maybe_____.

_____thesuperchargepressureis_____poweranenginedevelops.

Fuelinjectionvalvesshouldbetakenoutcleanedandliftingcheckedevery_____.

Seawaterisnotdirectlyusedasacoolantforenginesbecauseofits_____.

Inordertoensureperfectatomizationthefueloil_____beforeinjection.

Engagetheflywheelwiththe_____.

Duringthesuctionstrokethepistonismoving_____.

Modernengines_____exhaustgasdriventurbo-chargerstosupplypressurizedfreshair forscavengingandsupercharging.

Increasingthetemperatureofafuelwillreduceits_____.

Administrationsshouldbearinmindthesignificanceof_____inmaintainingsafetyof lifeandpropertyatseaandinpreventingmarinepollution.

Beforepumpingupthecrankcaseoil_____shouldbeworkedbyhandtominimizecorrosive actionontheliners.

第四章制冷装置 第一节压缩制冷的基本知识

_____theenginesthedieselengineis_____usedengineonboard.

Measure_____bymeansofleadwire.

A-framesaremountedonthebedplateandsupport_____andcylinderblock.

Compressedairissuppliedbyaircompressionto_____.

Eachcrankismadeupoftwocrankwebsjoinedbyacommon_____towhichthebottom endbearingisfitted.

Agovernorautomaticallycontrolsenginespeedbyregulating_____.

_____allowsforexpansionandwatermakeupinthewatercoolingsystem.

_____oftheA-framesthereisastrongcastironframecalledthescavengingairbox.

_____isasourceofpowerbywhichthedieselenginemayoperate.

Ifthesump_____weretorisethiswouldindicatewaterleakageintotheoilandan investigationintothecausemustbemade.

Foradieselenginewhenthepistonisatthe_____theclearancevolumeisthelargest.

二氧化碳浓度对_______库食物保质时间有影响

臭氧不具有_______作用

Inatypicalfuelsystemtheoilisstoredin_____inthedoublebottom.

对制冷剂热力性质的错误要求是_______

其它条件相同时海水温度越高则制冷装置_______

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_____.

液压舵机双泵并联工作比单泵工作_____

Freshwaterisusedforthecoolingofcylinderjacketsand_____ofthemarinediesel engine.

绞缆机应能保证在_____级以下风力系住船舶

Modemenginesmakeuseofexhaustgasdriventurbo-chargerstosupplypressurizedfresh airfor_____andsupercharging.

Afterpassingthroughtheturbinetheexhaustgasisconductedoutintothe_____.

舵机调整安全阀设定值时舵机应位于_____

_____mayhavetwoemergencysourceofpowerthusrequiringtwoemergencyswitchboards.

_____orairventingarrangementisfittedtothefuelsupplypassage.

Aftertheorder_____isgiventheairsystemisshutdowntheturninggearputin.

Engine_____referstotherelativetimeofpositionofcrankatwhicheachoperation duringthecycleiscommencedandiscompleted.

液压舵机充油时液压油一定要经过_____加入系统与油箱

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.

A:PleasetellmethespecificationsandquantityB:_____.

Fuelinjectedintoadieselenginescylinderisignitedby_____.

Alltheringsareslightlyroundedontheirexternaltopandbottomedgestokeepthe oilfilmonthecylinderlinerduring_____fornewpistonrings.

Pleasedrawouta0.lmm_____betweenthetwohalvesofthebearingtoreducetheclearance.

Crankshaftsofmediumspeedenginesare_____fromasinglepieceofsteel.

Oilwilllubricatetheseparts_____effectivelythanwater.

_____fueloils_____lubricatingoilsrequiretreatmentbeforepassingtotheengine.

船用液压油的主要污染指标不包括_____

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_____.

制冷装置中吸气管是指从_______通压缩机的管路

Coolingofengineisachievedbycirculationacoolingliquidaroundinternalpassages withinthe_____.

Castironcarrierrings_____machinedgroovesareprovidedforallthepistons.

InthesentenceInsomedesignsthecylinderoilistimedsothattheoilinjectsonly onthepistonringbelt.thepistonringbeltmeans_____.

If_____aretakenatregularintervalsanyunequaldistributionofloadwillbeeasily foundout.

Eachcylinderisclosedatthetopbya_____madeofaspecialheat-resistantsteel.

Cracksinthecylindersandcylindercoversmay_____unequalheating.

制冷剂流过膨胀阀工作正常时是由_______变成_______

A_____isthefoundationoftheenginewithoutthesupportofwhichtheshaftalignment inparticularandenginestructureasawholewouldinevitablybelost.

液压油有水混入将发生如下变化_____

Beforestartingtheenginetheairbottleshouldbe_____.

Inafour-strokeenginesthecamshaftrotatesat_____.

Ingeneral_____issuitablefordeliveringsmallquantitiesathighpressure.

第四节锚机及其液压系统的维护管理

_____istheremovalofexhaustgasesbyblowinginfreshair.

Itisveryimportantthateachcylindershouldbe_____scavengedbeforethecharged airiscompressed.

Anelectricallydrivenautomaticallyoperatingauxiliaryblowerisprovidedforslow speedand_____ofalowspeeddieselengine.

Fuelpumpindexis_____.

Onafour-strokedieselenginewhenthepistonisdrivendownwardsbytheexpanding gasitdeliverspowertothecrankshaftthroughthe_____.