正确答案: D

A+B+C

题目：从事船舶动力装置的管理人员，必须具有（）。

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学习资料的答案和解析：

[单选题]动力系统包括下列管路系统（）。

A+B+C

[单选题]（） is the removal of exhaust gases by blowing in fresh air.

Scavenging

[单选题]Leaky exhaust valve will result in which of the following?（）(1) high exhaust temperature;(2) low compression pressure;(3) low firing pressure.

(1),(2) and (3)

[单选题]The space between cylinder liner and jacket is called （）.

the cooling water space

[单选题]There should be a lubricating oil （） between the main beatings and the crankshaft.

film

[单选题]Those generally used additives for cooling water are either anti-corrosion oils or inorganic（）.

inhibitors

[单选题]What causes diesel fuel to be ignited in the cylinder of an operating diesel engine?（）

Heat of compression

[单选题]Maintaining the close tolerances in diesel fuel pumps and injectors requires the use of（）.

fuel filter