正确答案: A

Ⅰ＋Ⅱ＋Ⅳ

题目：气缸套内圆表面采用（）加工，是防止拉缸事故的工艺措施之一。Ⅰ.珩磨；Ⅱ.振动；Ⅲ.机械；Ⅳ.波纹；Ⅴ.磨削。

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学习资料的答案和解析：

[单选题]航行中，柴油机曲轴发生断裂事故，条件许可时可采用（）应急措施进行修理。Ⅰ.金属扣合工艺；Ⅱ.焊接；Ⅲ.局部更新；Ⅳ.铆接；Ⅴ.粘接。

Ⅱ

[单选题]（）, so they are widely used on board ship nowadays.

Diesel engines have more advantages in comparison with gasoline engines

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

viscosity of the oil

[单选题]Passages are drilled in the crankshafts of diesel engines to provide lubricating oil to the （）.

All of the above

[单选题]On a twin-screw，twin-rudder vessel，the most effective way to turn in your own water，with no way on，is to put（）.

one engine ahead and one engine astern，with full rudder