A.bearing knocks
B.dropping of pressure of LO
C.noises
D.all the above
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A.starting air pressure too high
B.correct timing of starting air valves
C.three of the six starting valves stuck
D.the turning gear disengaged
A.too low starting air pressure
B.main start valve closed
C.neither A nor B
D.A and B
A.The process begins after TDC
B.The process ends before TDC
C.When the piston is near to the TDC the fuel injection ends
D.None of the above is true
A.setting point
B.ash
C.sulfur content
D.carbon residues
A.1-2-3-4-5-6
B.1-2-3-6-5-4
C.1-5-3-6-2-4
D.1-3-4-5-6-2
最新試題
If the water level dropped rapidly in the expansion tank of a closed diesel engine cooling water system, you should suspect a （）.
Combustion knock can occur in the cylinders of a diesel engine under any condition permitting （）.
The most important factor in engine performance is the actual power output at the end of the crankshaft available for doing workThis is known as （）.
When would the available energy of the exhaust gases of a two-stroke/cycle diesel engine be insufficient to drive an exhaust gas turbocharger, resulting in the incorrect amount of air for combustion?（）
An automated diesel engine should normally shut down due to （）
Diesel engine control can be obtained by the bridge （）.
Combustion knock occurring in a diesel engine can be caused by （）.
Engine protection by means of an alarm or shutdown control can be obtained with devices that are sensitive to （）.
In diesel engines, the four basic events (intake, compression, power and exhaust) are performed once in （）.
The function of diesel engine piston compression rings is to （）.