正确答案: C

舵杆变形

题目：转舵不准，舵角不正可能是（）。

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学习资料的答案和解析：

[单选题]在船上吊缸检查活塞组件时，不必检测（）。

活塞环的金相组织和硬度

[单选题]在船上测量曲轴臂距差时，以曲柄销位置为准记录臂距值时，应自（）开始测量。

曲柄销位于195°处

[单选题]Dirty oil must be （） before being used again.

purified

[单选题]The rim of the piston may contain cut-out portions to accommodate （） when they open.

the valves

[单选题]When a crankshaft has to be handled outside the engine, it should be carefully supported in a manner which will avoid （） high bending moments on it.

imposing

[单选题]The hot expanding gas rotates the blades of the exhaust turbine, thus （） a large of its power, （） drives the compressor.

giving off；which

[单选题]The fuel injection system is very important, so any trouble of it will （） the operation of the main engine.

affect

[单选题]Crank web deflection readings will give a positive indication of （）.

worn main bearing journals