A.play a great part on
B.run a role in
C.plays an important part in
D.acts as important part at
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A.an oil seal
B.removing heat
C.a gas seal
D.cooling the piston
A.ignition ratio
B.power ratio
C.compression ratio
D.injection ratio
A.nip
B.nap
C.gap
D.lip
A.less than
B.lighter than
C.larger than
D.smaller than
A.less than
B.lighter than
C.larger than
D.smaller than
最新試題
Control of the main propulsion diesel engines can be shifted from the engine room to the wheelhouse from the （）.
The function of diesel engine piston compression rings is to （）.
If the main engine of an unattended engine room shuts down automatically, it will be indicated by an alarm （）.
How many power strokes per crankshaft revolution are there in an eight cylinder, two stroke/cycle diesel engine?（）
To determine if the lube oil filter elements need changing, （）.
Maximum horsepower of a diesel engine is attained （）.
If the water level dropped rapidly in the expansion tank of a closed diesel engine cooling water system, you should suspect a （）.
Which of the two events listed occurs simultaneously in a two-stroke/cycle diesel engine?（）
Engine protection by means of an alarm or shutdown control can be obtained with devices that are sensitive to （）.
Proper filtering and straining of fuel oil is important because the （）.