中华人民共和国海事局317

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1、中华人民共和国海事局2002年第2期海船船员适任证书全国统考试题（总第29期）科目：轮机英语试卷代号：804适用对象：无限、近洋航区750-3000KW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68题，每题1分，第69题至76题，每题1．5分，第77题至78题，每题10分。一．单项选择题１．___thesuperchargepressureis,___poweranengi

2、nedevelops．A．Thehigher/themore　B．Higher/more　C．Higher/little　D．Thehigher/theless2．___tappetclearancewillcausetheexhaustvalvetoopenlateandcloseearlyincycleandwillreduceitsmaximumlift．A．Correct　　B．Insufficient　　C．Excessive　　D．Noneoftheabove．3．Acidsoluti

3、on_____inthesystemcanbetestedfromtimetotimebyputtingsomeontoapieceoflime．A．strength　　　B．dense　　　C．percentage　　　D．velocity4．Thelowesttemperaturerequiredtocauseself-sustainedcombustionofasubstanceindependentofanyoutsidesourceofignitioniscalled______．A．e

4、xplosiverange　　　　　　B．flashpointC．ignitiontemperature　　　　D．combustiontemperature5．BeforestartingM/E,______shouldbeworkedbyhandtominimizewearontheliners．A．thecylinderoil　　　　　　　　　　　B．thestartingvalvesC．thecylinderlubricators　　　　　　　　D．theturninggear6．Tomi

5、nimizecorrosion,fueloilstrainerdisks,spacersandscraperbladesaremadeof_____．A．brass　　B．copper　　C．iron　　D．monelmetalorstainlesssteel7．Lowcompressionresultsfrom___．A．aworncylinder　B．brokenpistonrings　C．eitherAorB　D．Noneoftheabove8．Anelectricheaterbuiltin

6、tosomesmallerdieselenginesisusedto______．A．raiselubeoilviscosityforeasierstartingincoldweatherB．increaseairinlettemperatureC．increasecompressionratioD．increasejacketwatertemperatureforeasierstartingincoldweather9．Thereshouldbealubricatingoil___between

7、themainbearingsandthecrankshaft．A．film　　　B．cap　　　C．lacquer　　　D．shell10．___istheremovalofexhaustgasesbyblowinginfreshair．A．GasexchangeB．ChargingC．ScavengingD．Supercharging11．Thecasingoftheindependentthrustblockisintwohalveswhicharejoinedby______．A．thro

8、ughbolts　　B．jackbolts　　C．tiebolts　　D．fittedbolts12．A(n)isachemicalorelectro-chemicalattackonthemetalsurfacewhichmaybefurtherincreasedifthesea-waterispolluted．A．errosion　　B．corrosion　　C．cavity　　D．scouring13．Somevesselsareequippedwithawaterlubri