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單項(xiàng)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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單項(xiàng)選擇題

White smoke exhausting from a diesel engine can result from （）

A.high exhaust temperature
B.high lube oil temperature
C.low turbo-charger speed
D.low cooling water temperature

單項(xiàng)選擇題

White smoke exhausting from an operating diesel engine may indicate （）

A.a cracked liner
B.burning lube oil
C.an overloaded engine
D.insufficient combustion air

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