燃机专业英语考试题.doc

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1、GasTurbineEnglishTestDecember4,20121、TranslatethefollowingwordsintoChinese(20points)Temperatureratio,turbineinlettemperature,Thermalefficiency,specificfuelconsumption,Simplecycle,Rankinecycle,CombinedCycle,Braytoncycle,Heatrecoverysteamgenerator,Integratedcoalgasificationcombinedcycle2、Choos

2、etherightanswerfromA>B>CandD(20points)(1)Comparedwiththepistonengine,thegasturbineisA、lighterB>bulkyC、largerD、bothaandb(2)COSAGmeans・A、steamandgasusedworkingfluidinanengineB、combinationofsteamworkingfluidandgasC、combinationofsteamandgasturbineD、co・operationofgasandturbinearrangement(3)Owingt

3、oits，thegasturbinehasspecialadvantagesforaircraftA、highefficiencyB、lighterC、continuousrunD、highpower(4)Theoutputofthegasturbineplantistheturbineworkandthecompressorwork.A、differentfromB、sameforC、thedifferencebetweenD、togetherof(5)Improvementsingasturbineefficiencybyincreasingpressureratiosat

4、certaincondition・A>achieveB、canbeachievedC、arenotachievedD、areonlyachieved(6)NewmaterialsthehighertemperaturesohigherTETshavemadepossible・A、haveB、canwithstandC、canheattoD、canget(7)Thehighertheturbinefiringtemperature,thetimebetweenoverhaulsA、thelongerB、theshorterC、dependonD、relatedto(8)There

5、generatorwillnolongerbeutilizedwhentheturbineexhausttemperatureistheairtemperaturedischargedfromthecompressor.A、higherthanB、dependentofC、lowerthanD、relatedto(9)SaturationtemperaturethepressureexertedatthesurfaceofthewaterA、independsofB、dependsuponC、isofD、increases(10)Whenallthewaterdropletsc

6、onvertintosteam,thenthesteamiscalled.A、saturatedsteamB、superheatedsteamC、WetsteamD、drysaturatedsteam3、TranslatethefollowingpassagesintoChinese(60points)・(1)Thefirstparagraph(20points)Thegasturbineiscomposedofaircompressor,combustionchamberandturbine・Thecompressorandtheturbinewheelareonthesam

7、eshaftandrotatetogether.Thehotgasesfromthecombustionchamberstriketheturbineblades,drivingtheshaftandthusrotatingthecompressor.Airfromtheatmosphereissuckedintotheinletportsofthecompressorandflowsforwardthrougheachbladestage・Astheairpressureincreases