中华人民共和国海事局4【DOC精选】.docVIP

中华人民共和国海事局 2002年第1期海船船员适任证书全国统考试题（总第28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1．577题至78题，每题10分。 一．单项选择题 1． The compressed air is admitted to each cylinder through a cam operated by starting air valve when the piston has just passed its ______． Ａ．BDC Ｂ．TDC Ｃ．BBDC Ｄ．ATDC 2．Shims of different thicknesses are inserted between the shells to enable adjustment of _____． A．the bearing clearances B．the bearing thickness C．the bearing strength D．the bridge hardness It is very important that each cylinder should be　______　scavenged before the charged air is compressed． well 　　Ｂ．good 　　 Ｃ．excellent 　　Ｄ．respectively 4． _____ on a ship transmits power from the engine to the propeller． Automatic control system Ｂ．Speed regularly system Ｃ．The transmission system Ｄ．Compression air system 5． With Variable Injection timing the start of injection may be______ as the engine load is reduced． Aadvanced Ｂ．retarded C．kept constant D．None of the above. 6． The space between cylinder liner and jacket is called ___． ．the cooling water ．the circulating water．the cooler ．the cooling water space The diesel engine is a type of ___． A．turbine engineB．gas turbineC．steam engine D．internal combustion engine If the engine does start on air, but combustion does not immediately begin, the cause may not be _____． Alow compression B．failure of the fuel pump to discharge fuel C．incorrect timing of fuel pump D．turning gear being still on 9．We recommended that in the region of 90% of MCR to 100% MCR power, the load should be increased slowly over a period of 30 minutes or more． In the sentence above, “MCR” refers to ______A．maximum constant resistance B．minimum constant resistance C．maximum continuous rating D．minimum continuous rating 10．The function of the fuel injection system is to provide the amount of fuel at the