单项选择题
The governor of a generator engine is to （）.
A.make the engine stop
B.regulate the timing of camshafts
C.make the rpm stabilize at any required value
D.make the engine run at nearly constant speed
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相关考题
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单项选择题
The gas loads on the engine structure are constrained by means of hydraulically preloaded （） which connect the bed plate, frame sections and cylinder jackets into a single unit.
A.connecting rods
B.main bearing
C.column
D.tie rods -
单项选择题
The function of a lubricating oil is （） to lubricate the running surface （） to carry away a great deal of heat.
A.not；but
B.neither；nor
C.either；or
D.not only；but also -
单项选择题
The fuel pipes and ducts should be blown with （）.
A.atmosphere
B.the fresh water
C.compressed air
D.chemical compounds
