A.fresh water
B.sea water
C.lubrication
D.fuel oil
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A.pushing
B.centrifugal
C.stretch
D.compressive
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
最新試題
Lube oil cannot be efficiently filtered if its （）.
If the water level dropped rapidly in the expansion tank of a closed diesel engine cooling water system, you should suspect a （）.
A diesel engine is operating with excessively high exhaust temperatures at all cylindersTo correct this condition, you should FIRST （）.
The function of diesel engine piston compression rings is to （）.
For a given size engine, the two-stroke/cycle diesel engine will deliver more power than a four-stroke/cycle diesel engine because （）.
Maximum horsepower of a diesel engine is attained （）.
The main purpose of the piston oil scraper rings is to （）.
If the main engine of an unattended engine room shuts down automatically, it will be indicated by an alarm （）.
Electrically operated safety devices on auxiliary diesel engines function to stop the engine by （）.
Proper filtering and straining of fuel oil is important because the （）.