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
Combustion knock occurring in a diesel engine can be caused by （）.
A diesel engine piston ring face is in direct contact with the （）.
Combustion knock can occur in the cylinders of a diesel engine under any condition permitting （）.
If a diesel engine is difficult to start and operates with the engine temperatures lower than normal, you should suspect that the （）.
When fuel oil has seriously contaminated a diesel engine lubricating oil, you should （）.
Diesel engine control can be obtained by the bridge （）.
Maximum horsepower of a diesel engine is attained （）.
What causes diesel fuel to be ignited in the cylinder of an operating diesel engine?（）
To determine if the lube oil filter elements need changing, （）.
Lube oil cannot be efficiently filtered if its （）.