A.bearing knocks
B.dropping of pressure of LO
C.noises
D.all the above
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A.to remove heat from oil cooled pistons
B.to wash away wear detritus
C.to neutralize acidic products
D.all of the above
A.bearing knocks
B.dropping of pressure of LO
C.noises
D.all the above
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
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Lube oil filters remove contaminants more efficiently if the oil being filtered is （）.
What causes diesel fuel to be ignited in the cylinder of an operating diesel engine?（）
If a diesel engine is difficult to start and operates with the engine temperatures lower than normal, you should suspect that the （）.