中华人民共和国海事局2001年第2期海船船员适任证书全国统考试题（总第27期）科目：轮机英语试卷代号：603适用对象：沿海航区3000KW及以上船舶大管轮（本试卷卷面总分100分，及格分为70分，考试时间100分钟）答题说明：请选择一个最合适的答案，并将该答案按答题卡要求，在其相应位置上用2B铅笔涂黑。第1题至74题，每题1分，第75题至78题，每题1.5分，第79题至80题，每题10分。一．单项选择题1．Whenyoufindsomethingwrongwiththemachine,youshould___effectivemeasures．A．doB．takeC．makeD．keep2．Fuelsofhighqualitywiththeirearlierignitionswillcausehigher___pressureincylindersofadieselengine．A．compressionB．maximumC．ratedD．oil3．Itisnecessarytoremove_____fromthecoolingwaterspacestoimproveheattransfer．A．limeB．frostC．scarD．scale4．Thefunctionofalubricatingoilis___tolubricatetherunningsurface___tocarryawayagreatdealofheat．A．not/butB．neither/norC．either/orD．notonly/butalso5．Eachcrankismadeupoftwocrankwebsjoinedbyacommon___towhichthebottomendbearingisfitted．A．throwB．crankshaftC．crankpinD．crosshead6．Increasingdifferentialpressureofanoilfilterindicatesthat___．A．itisdirtyB．itisleakyC．ithasbeenrenewedD．alltheabove7．Thecompressedmixtureofairandfuelisignitedinthe___stroke．A．expansionB．compressionC．suctionD．exhaust8．Thedieselenginemustbestartedbeforeitcanrunbyitself．Forthispurpose___hastobeused．A．astartingsystemB．thestartingairC．astartingoperationD．A,BandC9．Thecompressedairissuppliedby___totheairreservoirs．A．compressorsB．forcedfansC．ventilatorsD．generators10．Agovernorautomaticallycontrolsenginespeedbyregulating___．A．firingorderB．fuelsupplyC．engineloadD．oillevel11．Themostimportfactorthatcausesthewearofthepartsis___．A．frictionB．excessiveheatC．oxidationD．highpressure12．Areductioninloadonadieselengineresultsin___ofspeedofthecrankshaft．A．anincreaseB．areductionC．anoutingD．adownwards13．Througha___pump,theliquidistransferredfromthesuctiontothedischargebythemechanicalvariationofthevolumeofachamberorchambers．A．positivedisplacementB．ejectorC．centrifugalD．aircompressor14．Gearpumpsareofpositivedisplacementtypepumpsbecausetheydischargeanearconstantamountofliquid___pressure．A．dependingonB．regardlessofC．inrelativetoD．becauseof15．Thepressureheadofapumpisgivenintheunitof___．A．kgB．MpaC．meterfluidcolumnD．Noneoftheaboveistrue．16．Thedischargeflowofareciprocatingpumpis___．A．steadyB．inpulsationC．continuousD．large17．Theamountoffluiddeliveredbyascrewpumpcanberegulatedby___．A．throttlingthepressurelineB．changingthespeedoftherotorC．eitherAorBD．Noneoftheaboveistrue．18．AScrewpumpbelongsto___accordingtoitsworkingprinciple．A．reciprocatingpumpsB．positivedisplacementpumpsC．centrifugalpumpsD．centripetalpumps19．Thefurnaceofaoilfiredboilershouldbe___beforetheoperatingburnerislit．A．filledwithwaterB．purgedC．clearedofairD．Noneoftheaboveistrue．20．Thedonkeyboilermaybegivenabottomblow___．A．toraisewaterlevelB．whenfirearesecuredC．toremovescumD．onlywhilemakingsteam21．Whichofthefollowingmethodscannotbeusedforrefrigeration?A．Turnsolidintoliquid．B．Turnliquidintogas．C．Turngasintoliquid．D．Usecoldwatertotakeawayheat．22．Ifindoubtastothetruewaterlevelwhenaboilerisbeingoilfired,youshould___．A．extinguishthefireassoonaspossibleB．takenomeasuresC．feedwatertotheboilerD．opentheblowdownvalve23．Youshouldfrequentlycomparedrum-mountedandremote...