船舶动力装置题库2022易错易混每日一练(10月10日)

1. [单选题]中国船级社要求营运船舶的曲轴臂距差为（）时，应限期修理。

A. ＜0.125S
B. （0.125～0.25）S
C. ＞0.25S
D. ＞0.30S

2. [单选题]（） the supercharge pressure is, （） power an engine develops.

A. The higher；the more
B. Higher；more
C. Higher；little
D. The higher；the le

3. [单选题]Before starting the turning gear, （） should be worked by hand to minimize corrosive action on the liners.

A. the indicators
B. the starting valves
C. the cylinder lubricators
D. the turning gear

4. [单选题]In a purifier changing to a gravity disc with larger hole diameter will move the interface towards the （）.

A. bowl periphery
B. bowl center
C. upper surface
D. lower surface

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