单项选择题

The engine may lose power or slow down during running, when this occurs, the first cause possible may be hot bearings and （） of the pistons in the cylinders.

A.crack
B.knocking
C.leaking
D.seizure

相关考题

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A.pressure oil
B.pressure water
C.compressed air
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The engine is reversed by axial displacement of the cam...

单项选择题The engine is reversed by axial displacement of the camshafts In order for this to be carried out, the cams are （） with inclined transition faces.

A.lathed
B.shaped
C.shrunk
D.developed

The engine has one or two group of fuel pumps, dependin...

单项选择题The engine has one or two group of fuel pumps, depending upon （）.

A.the number of fuel valves
B.the number of cylinders
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D.the power of engine

船舶动力装置

The engine may lose power or slow down during running, when this occurs, the first cause possible may be hot bearings and （） of the pistons in the cylinders.