单项选择题
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?（）
A.During operation at low speed
B.During operation at rated speed, but low power output
C.During acceleration
D.All of the above
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相关考题
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单项选择题
If a diesel engine is difficult to start and operates with the engine temperatures lower than normal, you should suspect that the （）.
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 -
单项选择题
Routine monitoring of a diesel engine should include （）.
A.checking for leaks
B.checking temperatures and pressures
C.listening for abnormal noises
D.all of the above -
单项选择题
A diesel engine is operating with excessively high exhaust temperatures at all cylindersTo correct this condition, you should FIRST （）.
A.reduce the engine load
B.increase the cooling water flow
C.increase the lube oil pressure
D.adjust the fuel rack
