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1、編號(hào)問(wèn)題選擇A選擇B選擇C選擇D答案注解1“Onalargedieselengineinstallationcrankshaftaxialalignmentismaintainedbythe________.“pistonrodguidesenginethrustbearingcrossheadbearingmainshaftflexiblecouplingB在大型柴油機(jī)安裝中,曲軸靠推力軸承保持軸向?qū)χ小?“Adieselengine
2、whichisratedfnmaloperationatacrankshaftspeedof800rpmiscommonlyclassedasa________.“slowspeeddieselmediumspeeddieselhighspeeddieselconstantspeeddieselB曲軸轉(zhuǎn)速800轉(zhuǎn)/分以額定功率正常運(yùn)行的柴油機(jī)稱(chēng)為中速柴油機(jī)。3Whichofthefollowingstatementsiscrectcon
3、cerningavailableasternpowerfdieselmainpropulsionsystemsAsternpoweristobeprovidedinasufficientamounttosecurepropercontroloftheshipinallnmalcircumstances.Theasternpowerofthemainpropellingmachineryistoprovidefcontinuousoper
4、ationasternat60%oftheaheadrpmatratedspeed.“Fmainpropulsionsystemswithoutreversinggearscontrollablepitchpropellerselectricpropulsiondriverunningasternisnottoleadtooverloadconditions.““Asternpoweravailablewillbeequaltoahea
5、dpowerwhencontrollablepitchpropellersareutilizedthusdiscountingtheneedfincreasedoperatingparameters.“A倒車(chē)功率必須能提供足夠的功率確保在各種正常情況下能夠?qū)Υ斑M(jìn)行適當(dāng)?shù)目刂啤?“Whentwomediumspeeddieselenginescoupledinparalleltoacommonpropellershaftthatoper
6、atesatthesamespeedastheengineswhichoftheoperatingconditionslistedwillapply“Fullhsepowerisavailableaheadastern.Oneenginemustberunningaheadtheotherastern.Fullreversingtqueisnotavailable.Mechanicalreductiongearingisrequired
7、.D當(dāng)兩臺(tái)中速柴油機(jī)并排連接到同速運(yùn)轉(zhuǎn)的普通螺旋槳軸上,需要機(jī)械減速裝。5WhichofthelisteddesignfeaturesismostcommontoatwostrokecyclelowspeedmainpropulsiondieselengineCrossheadconstruction.Crossscavengingairflow.Trunktypepistons.Singlereductiongearing.A低速二沖
8、程主推進(jìn)柴油機(jī)普遍采用十字頭結(jié)構(gòu)。6Adisadvantageofatwostrokecycledieselengineis________.mepowerstrokesperrevolutiontheuseofscavengeairmecomplicatedvalvegearhigherwkingtemperaturesofthepistoncylinderD二沖程柴油機(jī)的缺點(diǎn)是氣缸頭的溫度高。7“Incomparingengines
9、ofequalhsepowerhigherexhaustgastemperaturesoccurinaan________.“opposedpistonenginedoubleactingenginetwostrokecycleenginefourstrokecycleengineD與相同馬力的柴油機(jī)相比,四沖程柴油機(jī)的廢氣溫度高。8Thedoublebottominavesselisaspacecomprisedof________.
10、platingfmingtheengineroomtanktopdoubleplatinginstalledovertheflatkeelplateawatertightboundaryfmedbytheinnerbottomcompartmentsbetweentheinnerouterbottomsD船的雙底殼是由內(nèi)外兩層構(gòu)成的。9Awaterjacketisplacedaroundtheexhaustmanifoldsofprop
11、ulsiondieselenginesto________.reduceheatradiationtotheengineroomaidinpreventingturbogeroverheatingcondensedrainmoisturefromexhaustgasesdampenexhaustgaspulsationsinthemanifoldA環(huán)繞排氣總管的水套是為了減少對(duì)機(jī)艙的熱輻射。10“Whichofthelistedtype
12、sofstaringsystemsisoftenusedonlargelowspeeddirectreversingmainpropulsiondieselengines“Electric.Hydraulic.Air.Alloftheabove.CoftheaboveD發(fā)動(dòng)機(jī)發(fā)火之前必須獲得的最低轉(zhuǎn)速取決于發(fā)動(dòng)機(jī)的類(lèi)型和尺寸、發(fā)動(dòng)機(jī)的狀態(tài)和環(huán)境溫度等因素。19“Inadieselengineinternalcombustioncause
13、sthepistontobemovedby________.“thesimpleadmissionoffuelairintothecombustionspaceonlythepressureofgasesdevelopedspeciallydesignedpartsconnectedtoashafttheconceptofreciprocityB在柴油機(jī)工作時(shí),內(nèi)部燃燒引起活塞被燃?xì)鈮毫︱?qū)動(dòng)。20Dieselenginesareclas
14、sifiedasreciprocatinginternalcombustionenginesbecausethey________.useenergyfromfuelburnedoutsidetheircylindersburnfuelinacombustionchamberthatmovesbackfthburnfuelinachamberwhereitsenergymovesapistonbackfthuseacontinuousc
15、ombustionprocesstoimpartrotarymotiontothepistonsC把柴油機(jī)歸類(lèi)于往復(fù)式內(nèi)燃機(jī),是因?yàn)槿加驮谌紵覂?nèi)被燃燒,產(chǎn)生能量使活塞作往復(fù)運(yùn)動(dòng)。21Amainpropulsiondieselengineisnmallyshutdownby________.shuttingofftheairsupplyoverspeedingtheenginesecuringthefuelsupplysecuringt
16、heignitionsystemC主推進(jìn)柴油機(jī)是通過(guò)切斷燃油供應(yīng)實(shí)現(xiàn)停車(chē)的。22Thethermalenergyproducedbyaninternalcombustionengineistransfmedinto________.combustionenergyinternalenergyexternalenergymechanicalenergyD內(nèi)燃機(jī)產(chǎn)生的熱能轉(zhuǎn)換成機(jī)械能。23Maximumhsepowerofadieselen
17、gineisattained________.whentheengineRPMispulleddownbyoverloadatratedengineRPMat95%ofratedengineRPMat95%ofaproperlyadjustedgovernRPMwiththeengineunderfullloadB在額定轉(zhuǎn)速時(shí)所產(chǎn)生的功率是柴油機(jī)的最大功率。24“Asaheatengine________energyisthesourc
18、eofpowerbywhichthedieselenginecanbeoperated.“electricheatmechanicalexhaustB柴油機(jī)作為熱機(jī),熱能是其功率的來(lái)源。25“Becausethecastingsofsmallerenginesarenotsobigheavy________cylinderblockmaybemadeinonepiece.“thecolumnthejacketcylindercoverc
19、ylinderlinerA由于小型發(fā)動(dòng)機(jī)的鑄件不是很重也不是很大,機(jī)架和氣缸體可以做成一體。26________systemisarrangedtoensurethatwatercanbedrawnfromanytanktheseadisgedtoanyothertanktheseaasrequiredtotrimthevessel.ThedomesticwaterBilgewaterOiltransferTheballastD壓載水系
20、統(tǒng)用來(lái)確保能從任一個(gè)艙或海中吸入海水,也能將水排到任一艙或海中,達(dá)到平衡船舶之目的。27“Ifyouvesselburns8tonsoffuelperhourat15knotshowmanytonsperhourwillitburnat18knots“13.82tons15.61tons16.00tons16.37tonsA船舶以15節(jié)的速度航行時(shí)耗油8噸,那么以18節(jié)的速度航行時(shí)的耗油量為:M2=(V2V1)3M1=(1815)38=
21、13.82(噸)。28Eachcylinderlineronthemarinemediumspeedengines________.isusuallycooledbyseawatercanbereplacedwhenwnoutisindirectcontactwiththewaterinthebeofthecylindercantexpwhenheatedB船用柴油機(jī)的缸套磨損后可以更換。29Energylossesdueto_____
22、___occurineverymachine.speedfrictionimpactatmosphereB由于磨擦造成的能量損失在每一臺(tái)機(jī)器都存在。30“HitachiB&W2strokecyclesingleactingdirectreversiblecrossheadweldingdesigntypedieselenginewithturbogetheseinfmationrefersto________.“thetypeofapu
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