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
最新試題
The minimum speed an engine must attain before ignition can occur depends upon （）.
A diesel engine is operating with excessively high exhaust temperatures at all cylindersTo correct this condition, you should FIRST （）.
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?（）
Lube oil cannot be efficiently filtered if its （）.
Combustion knock can occur in the cylinders of a diesel engine under any condition permitting （）.
Electrically operated safety devices on auxiliary diesel engines function to stop the engine by （）.
In diesel engines, the four basic events (intake, compression, power and exhaust) are performed once in （）.
Which of the two events listed occurs simultaneously in a two-stroke/cycle diesel engine?（）
To determine if the lube oil filter elements need changing, （）.
An automated diesel engine should normally shut down due to （）