A.During operation at low speed
B.During operation at rated speed, but low power output
C.During acceleration
D.All of the above
您可能感興趣的試卷
你可能感興趣的試題
A.compression pressures are below normal
B.lube oil is diluted with fuel oil
C.cranking speed is too low
D.exhaust system is partially restricted
A.checking for leaks
B.checking temperatures and pressures
C.listening for abnormal noises
D.all of the above
A.reduce the engine load
B.increase the cooling water flow
C.increase the lube oil pressure
D.adjust the fuel rack
A.prevent piston side thrust
B.prevent engine friction losses
C.transmit heat from the piston to the cylinder liner
D.remove oil from the cylinder combustion space
A.top of the ring groove
B.cylinder liner oil film
C.bottom of the ring groove
D.back of the ring groove
最新試題
When fuel oil has seriously contaminated a diesel engine lubricating oil, you should （）.
Routine monitoring of a diesel engine should include （）.
In using reduction gears to obtain efficient propeller speeds, （）.
If the water level dropped rapidly in the expansion tank of a closed diesel engine cooling water system, you should suspect a （）.
Combustion knock occurring in a diesel engine can be caused by （）.
A thrust bearing is used with a propulsion diesel engine to （）.
Engine protection by means of an alarm or shutdown control can be obtained with devices that are sensitive to （）.
What is the function of the thrust bearing?（）
Electrically operated safety devices on auxiliary diesel engines function to stop the engine by （）.
To determine if the lube oil filter elements need changing, （）.