A.crankcase
B.cylinder
C.scavenge box
D.piston
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A.a motor-driven steering wheel
B.a pneumatic steering wheel
C.a hand-driven steering wheel
D.an electric steering wheel
A.the bearing
B.the crosshead
C.bosses
D.bridges
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
A.connecting rods
B.main bearing
C.column
D.tie rods
A.not；but
B.neither；nor
C.either；or
D.not only；but also
最新試題
Lube oil filters remove contaminants more efficiently if the oil being filtered is （）.
What is the function of the thrust bearing?（）
Engine protection by means of an alarm or shutdown control can be obtained with devices that are sensitive to （）.
Which of the two events listed occurs simultaneously in a two-stroke/cycle diesel engine?（）
The function of diesel engine piston compression rings is to （）.
An automated diesel engine should normally shut down due to （）
White smoke exhausting from an operating diesel engine may indicate （）.
Maximum horsepower of a diesel engine is attained （）.
Combustion knock can occur in the cylinders of a diesel engine under any condition permitting （）.
The main purpose of the piston oil scraper rings is to （）.