Keep compartment （） as the gas given off can be dangerous.

【名词&注释】

准备工作(preparation work)

[单选题]Keep compartment （） as the gas given off can be dangerous.

A. well ventilated
B. well clean
C. in good order
D. more room

查看答案&解析 查看所有试题

学习资料：

[单选题]底脚螺栓与机座和底座的连接方式是（）连接。

A. 刚性
B. 柔性
C. 弹性
D. 塑性

[单选题]船舶舵系是实现船舶（）等操纵的航向控制装置。Ⅰ.转向；Ⅱ.前进；Ⅲ.后退；Ⅳ.掉头；Ⅴ.直航。

A. Ⅰ＋Ⅱ
B. Ⅰ＋Ⅳ＋Ⅴ
C. Ⅲ＋Ⅳ＋Ⅴ
D. Ⅰ＋Ⅱ＋Ⅲ

[单选题]滑油系统的备车准备工作应检查（）。Ⅰ.循环油柜油位；Ⅱ.轴承油位；Ⅲ.储油柜油位；Ⅳ.分油机

A. Ⅰ+Ⅱ
B. Ⅰ+Ⅲ
C. Ⅰ+Ⅳ
D. Ⅰ+Ⅱ+Ⅲ

[单选题]During the inspection, the starting air valves should be closed （） the engine from turning.

A. to increase
B. to speed up
C. to prevent
D. to reduce

[单选题]In a four-stroke engine the camshaft rotates at （）.

A. half the engine speed
B. twice the engine speed
C. the engine speed
D. four times the engine speed

[单选题]The needle valve in a fuel valve will （） when the fuel pressure action on the needle valve tapered face exerts a force lower than that of the spring compression.

A. be jammed
B. be opened
C. be seated
D. be broke

[单选题]What preventative maintenance should be done frequently to diesel engine starting air receivers?（）

A. Drain the accumulated moisture
B. Test the relief valves
C. Watch the temperature to prevent fluctuations in pressure
D. Clean the interior to remove oil and foreign matter

[单选题]Which of the following problems can cause fluctuating pressures in the closed cooling system of a main propulsion diesel engine?（）

A. Defective temperature controls in the system
B. Cavitation in the cooling water pump
C. Opened vent in the cooling system
D. Restricted water passages in the engine

本文链接：https://www.51bdks.net/show/jq3jjy.html