A.be jammed
B.be opened
C.be seated
D.be broken
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A.more water contents
B.contamination with fuel oil
C.higher temperature
D.sufficient cooling of oil mist
A.is always less than 100%
B.is always more than 100%
C.is always equal to 90%
D.is always less than 90%
A.principle
B.principal
C.cause
D.case
A.two-stroke
B.four-stoke
C.long-stroke
D.short-stroke
A.bedplate, connecting rods
B.crankshaft, the connecting rods
C.frames, crossheads
D.crankshaft, the cylinder
最新試題
Diesel engine control can be obtained by the bridge （）.
If a diesel engine is difficult to start and operates with the engine temperatures lower than normal, you should suspect that the （）.
Electrically operated safety devices on auxiliary diesel engines function to stop the engine by （）.
Control of the main propulsion diesel engines can be shifted from the engine room to the wheelhouse from the （）.
In diesel engines, the four basic events (intake, compression, power and exhaust) are performed once in （）.
To determine if the lube oil filter elements need changing, （）.
The highest pressure in a diesel engine cylinder normally occurs （）.
If the water level dropped rapidly in the expansion tank of a closed diesel engine cooling water system, you should suspect a （）.
The ability of the governor to prevent fluctuations in engine speed is termed （）.
Which of the two events listed occurs simultaneously in a two-stroke/cycle diesel engine?（）