单项选择题
When the follower is on the base circle of the cam, the pump plunger is at the （） of its stroke.
A.top
B.middle
C.bottom
D.any of the above
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相关考题
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单项选择题
When a crankshaft has to be handled outside the engine, it should be carefully supported in a manner which will avoid （） high bending moments on it.
A.compressing
B.interposing
C.imposing
D.pounding -
单项选择题
When a crankshaft （） outside the engine, it should be carefully supported in a manner which will avoid imposing high bending moments on it.
A.has to be handled
B.may be handled
C.has being handled
D.will be handling -
单项选择题
Vents are led from the engine to the head tank for the release of （） from the cooling water.
A.air
B.heat
C.sludge
D.steam
