3000kw以上大管轮44期英语试题.docVIP

中中华人民共和国海事局 2007年第6期海船船员适任统考试题（总第44期） 科目：轮机英语 试卷代号：801 适用对象：无限/近洋航区3000KW及以上船舶轮机长 （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. Modern marine diesel engines equipped with mechanical fuel injection operate on a combustion phase within the cycle which is . A. entirely constant pressure B. entirely constant temperature C. a combination of constant volume and constant pressure D. a combination of constant temperature and constant pressure 2. The average pressure exerted on a piston during each power stroke is termed . A. indicated horsepower B. mean effective pressure C. exhaust back pressure D. compression pressure 3. An individual injection pump is designed for variable beginning and constant ending of injection. For diesel engines operating at constant speeds, the start of injection will A. advance as the load increases B. retard as the load increases C. remain unchanged regardless of load D. always occur at top dead center 4. On opposite ends of a single shaft of a turbo-blower are a gas driven and a air compressor, which are sealed each other. A. charge air receiver B. scavenging air belt C. turbine D. air cooler 5. The adverse effects of burning high sulfur fuel can be compensated for by using cylinder oil having sufficient ____. A. dispersant additives B. floc point C. alkalinity additives D. ignition quality 6. To check the setting of the over-speed trip on a diesel-powered generator, you would use a . A. torsion meter B. tachometer C. dynamometer D. pony brake 7. The best tool to use for removing the carbon ridge at the top of an engine cylinder, prior to removing the piston, is to use . A. an electric grinder