A charge of fresh air is drawn into the engine cylinder and

【名词&注释】

柴油机(diesel engine)、不合格(unqualified)、中心线(center line)

[单选题]A charge of fresh air is drawn into the engine cylinder and then （） by the moving piston（） very high pressure.

A. pressed；to
B. pressurized；with
C. pushed；in
D. compressed；to

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学习资料：

[单选题]吊缸检修完毕后，发现零件漏装时应（）。

A. 查找漏装部位重新进行安装
B. 保存起来，下次吊缸时再补装
C. 报废处理
D. 以上均可

[单选题]柴油机横向校中是指在（）方向上活塞运动部件与固定件有准确的相对位置。

A. 柴油机左、右
B. 船舶左、右
C. 活塞左、右
D. 曲轴左、右

[单选题]平台检验舵杆中心线与舵承孔中心线同轴度不合格时，应采取（）措施修复。

A. 偏镗舵承孔
B. 重新定位舵杆
C. 研磨舵杆与舵叶的配合面
D. 指针法

[单选题]The hot expanding gas rotates the blades of the exhaust turbine, thus giving out large part of its power, which drives （）.

A. the oil separator
B. the fresh water generator
C. the compressor
D. fire pum

[单选题]The marine diesel engine is a type of diesel engine used on ships The （） of its operation is not very difficult to understand.

A. principle
B. principal
C. cause
D. case

[单选题]Valve overlap is the period during which （）.

A. the inlet valve is open
B. the exhaust valve is open
C. both valves are closed
D. both valves are ope

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