正确答案: D

bearing wear

题目：Bearing knocks are likely to occur from （）.

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学习资料的答案和解析：

[单选题]活塞杆填料函的泄放管是与（）连通的，主机运行时可以从泄放管的工作状态判断填料函工作是否正常。

中部刮油环

[单选题]在柴油机已装活塞运动部件的情况下测量臂距值时，为了准确测量臂距值（）。

盘车一周应测完5个数值

[单选题]舵承孔同轴度偏差过大时，可采取（）措施。

偏镗舵承孔衬套

[单选题]（） fuel oils （） lubricating oils require treatment before passing to the engine.

Both；and

[单选题]The main bearings are provided with thin-walled （）, lined with a copper-lead alloy.

steel shells

[单选题]The sequence of parts in a generally used fuel oil supply system for a main engine is （）(1)tanks in the double bottom(2)centrifuges(3)service tank(4)settling tank(5)viscosity regulator

(1)-(4)-(2)-(3)-(5)

[单选题]The highest pressure in a diesel engine cylinder normally occurs （）.

after TDC