A.a cracked liner
B.burning lube oil
C.an overloaded engine
D.insufficient combustion air
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A.increasing the volume of intake air
B.shutting off the fuel supply
C.increasing the engine back pressure
D.over-speeding the engine
A.During operation at low speed
B.During operation at rated speed, but low power output
C.During acceleration
D.All of the above
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
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In using reduction gears to obtain efficient propeller speeds, （）.
If a diesel engine is difficult to start and operates with the engine temperatures lower than normal, you should suspect that the （）.
A thrust bearing is used with a propulsion diesel engine to （）.
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When fuel oil has seriously contaminated a diesel engine lubricating oil, you should （）.
The minimum speed an engine must attain before ignition can occur depends upon （）.
How many power strokes per crankshaft revolution are there in an eight cylinder, two stroke/cycle diesel engine?（）
Combustion knock occurring in a diesel engine can be caused by （）.