正确答案: A

舵承间隙过大

题目：转舵时声音异常可能是（）。

查看原题 查看所有试题

学习资料的答案和解析：

[单选题]柴油机气缸套与活塞环工作表面间油膜变薄或遭到破坏，是由于（）等因素造成。Ⅰ.润滑不良；Ⅱ.活塞运动装置对中不良；Ⅲ.冷却不良；Ⅳ.超负荷；Ⅴ.工作表面粗糙度低。

C．Ⅰ＋Ⅱ＋Ⅲ＋Ⅳ+Ⅴ

[单选题]船轴不包括（）。

曲轴

[单选题]Due to （） action of pistons some relative motion between parts in contact in the coolant supply and return system must occur.

reciprocating

[单选题]Once all cylinders are firing regularly, （） is shut off.

the starting air

[单选题]The emulsion of the oil is mainly caused by （）.

the water content

[单选题]Increasing the valve clearance between a valve stem and rocker arm, will result in the valve （）

staying open for a shorter period of time