A.the indicating cock
B.the starting valve
C.air inlet valve
D.the exhaust valve
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A.after TDC
B.before TDC
C.after BDC
D.before BDC
A.after TDC
B.before TDC
C.after BDC
D.before BDC
A.oil
B.sea water
C.refrigerant
D.fresh water
A.half the engine speed
B.twice the engine speed
C.the engine speed
D.four times the engine speed
A.downwards；upwards
B.upwards；downwards
C.downwards；downwards
D.upwards；upwards
最新試題
For a given size engine, the two-stroke/cycle diesel engine will deliver more power than a four-stroke/cycle diesel engine because （）.
Which of the two events listed occurs simultaneously in a two-stroke/cycle diesel engine?（）
The minimum speed an engine must attain before ignition can occur depends upon （）.
The function of diesel engine piston compression rings is to （）.
What is the function of the thrust bearing?（）
Maximum horsepower of a diesel engine is attained （）.
Proper filtering and straining of fuel oil is important because the （）.
Routine monitoring of a diesel engine should include （）.
The main purpose of the piston oil scraper rings is to （）.
When fuel oil has seriously contaminated a diesel engine lubricating oil, you should （）.