A.pushing
B.centrifugal
C.stretch
D.compressive
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A.must replace
B.must to be equipped
C.has to be repaired
D.have to be renewed
A.larger than
B.smaller than
C.equal to
D.none of the above
A.chromium-plate against wear
B.anti-corrosion treated
C.white metal lined against wear
D.flame hardened against wear
A.to revolve
B.revolved
C.revolving
D.to be revolved
A.crankshaft
B.connecting rod
C.cross-head
D.main beating
最新試題
Combustion knock occurring in a diesel engine can be caused by （）.
Combustion knock can occur in the cylinders of a diesel engine under any condition permitting （）.
Electrically operated safety devices on auxiliary diesel engines function to stop the engine by （）.
In a simple mechanical governor, the （）.
Proper filtering and straining of fuel oil is important because the （）.
The main purpose of the piston oil scraper rings is to （）.
If the water level dropped rapidly in the expansion tank of a closed diesel engine cooling water system, you should suspect a （）.
A thrust bearing is used with a propulsion diesel engine to （）.
A diesel engine piston ring face is in direct contact with the （）.
What causes diesel fuel to be ignited in the cylinder of an operating diesel engine?（）