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單項選擇題

White smoke exhausting from a diesel engine can be caused by a （）

A.high combustion temperature
B.high compression pressure
C.cracked cylinder liner
D.fuel with a high vanadium content

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單項選擇題

White smoke exhausting from a diesel engine can be caused by （）

A.low combustion temperature
B.a leaking fuel nozzle check valve
C.late fuel injection
D.plugged oil-scraper ring hole

單項選擇題

White smoke issuing from the exhaust of an auxiliary diesel engine valve opening （）

A.the engine is overloaded
B.the engine is cold
C.there is too much lube oil in the cylinders
D.the turbocharger is fouled

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