正确答案: D

Ⅰ＋Ⅱ＋Ⅳ＋Ⅴ

题目：船舶轴系在运转中常产生（）等损坏。Ⅰ.振动；Ⅱ.轴承发热；Ⅲ.轴承烧熔；Ⅳ.轴磨损；Ⅴ.轴穴蚀。

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学习资料的答案和解析：

[单选题]拆卸机器时不必（）。

对拆下的零件进行磁粉探伤

[单选题]轴系两端轴产生同轴度偏差可采用（）进行检测。

平轴法或平轴计算法

[单选题]局部螺距等于（）（ΔL为螺距规量杆的升程α为螺距规水平杆转过的角度）。

360•ΔL/α

[单选题]Acid solution（） in the system can be tested from time to time by putting some on to a piece of lime.

strength

[单选题]After "F.W.E" is given, the air system is shut down, the （） gear put in, all drains and indicator cocks opened, and the cooling water kept running.

turning

[单选题]Fix the fuel injector into （） after repair.

the cylinder cover

[单选题]As to the bearing, of the following, which statement is not true?（）

Much heat of the crankcase door indicates that the bearing is overheated

[单选题]Friction, engine wear and oil consumption in a diesel engine are directly related to the （）.

viscosity of the oil