单项选择题

The small end of the connecting rod is attached to the piston with a （）.

A.crankpin
B.sliding wedge
C.wrist pin
D.torque bashing

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Increasing the load on an engine equipped with a constant speed mechanical governor, will cause the engine speed to initially （）.

A.increase
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A dirty diesel engine oil filter element can best be detected by （）.

A.visual inspection of the elements
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