A.the pressure of the starting air is high enough
B.there is enough air in the air reservoirs
C.the air is supplied into the cylinders in the appropriate sequence
D.all of the above
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A.the start fails
B.the fuel pumps will be put into operation
C.the fuel valves are damaged
D.the combustion process will take over
A.crack
B.knocking
C.leaking
D.seizure
A.pressure oil
B.pressure water
C.compressed air
D.cooling water
A.lathed
B.shaped
C.shrunk
D.developed
A.the number of fuel valves
B.the number of cylinders
C.the speed of engine
D.the power of engine
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Which of the two events listed occurs simultaneously in a two-stroke/cycle diesel engine?（）
The highest pressure in a diesel engine cylinder normally occurs （）.
Lube oil filters remove contaminants more efficiently if the oil being filtered is （）.
If the water level dropped rapidly in the expansion tank of a closed diesel engine cooling water system, you should suspect a （）.
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The ability of the governor to prevent fluctuations in engine speed is termed （）.
What causes diesel fuel to be ignited in the cylinder of an operating diesel engine?（）
The main purpose of the piston oil scraper rings is to （）.
Routine monitoring of a diesel engine should include （）.
To determine if the lube oil filter elements need changing, （）.