船舶动力装置题库2022模拟冲刺试卷106

1. [单选题]动力系统包括下列管路系统（）。

A. 燃油、滑油系统
B. 海、淡水冷却系统
C. 蒸汽、压缩空气系统
D. A+B+C

2. [单选题]并联连接系统的不可靠度^{(unreliability)}（）系统中任一并联部件的不可靠度^{(unreliability)}。

A. 不高于
B. 等于
C. 不低于^{(no less than)}
D. 高于

3. [单选题]增压器喘振的常见原因是（）。

A. 叶片折断
B. 轴承损坏
C. 流道阻塞
D. 转子变形

4. [单选题]关于推进装置传动方式中，对间接传动的优点理解错误的是（）。

A. 可选择减速比^{(reduction ratio)}
B. 主机不用换向
C. 传动效率高
D. 可多机并联运行

5. [单选题]螺旋桨失去平衡^{(off balance)}的主要原因是（）等，造成螺旋桨各个桨叶质量不均所致。Ⅰ.桨叶腐蚀或污损；Ⅱ.桨叶上有抗鸣边缘；Ⅲ.桨叶碰撞产生变形；Ⅳ.桨叶折断或丢失；Ⅴ.桨叶边缘穴蚀。

A. Ⅱ＋Ⅲ
B. Ⅰ＋Ⅳ＋Ⅴ
C. Ⅲ＋Ⅳ＋Ⅴ
D. Ⅰ＋Ⅱ＋Ⅲ＋Ⅳ

6. [单选题]（） is not properly set thus causing either advanced or retarded firing.

A. A piston
B. A fuel injection pump
C. A feed water pump
D. A lube oil pum

7. [单选题]Diesel engines are started by supplying （） into the cylinders in the appropriate sequence for the required direction.

A. fuel oil
B. diesel oil
C. compressed air
D. jacket water

8. [单选题]In the （） pressure charging system the pulse of energy that occur as the exhaust is released from the cylinder to improve the output of the turbocharger.

A. constant
B. pulse
C. high
D. none of the above

9. [单选题]The （） chamber is enclosed between the cylinder head and piston.

A. lubrication
B. injection
C. cooling
D. combustio

10. [单选题]A thrust block is designed to（）.

A. absorb the shock of wave pressure at the bow
B. be placed between the engines and the foundation to absorb the vibration
C. transmit the thrust of the engine to the propeller
D. transmit the thrust of the propeller to the vessel

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