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單項選擇題

If you observe smoke coming from the turbocharger of an auxiliary diesel engine, you should（）

A.check the air filter for obstruction
B.check for an exhaust leak
C.check the exhaust temperature
D.secure the engine

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單項選擇題

Clogged or partially obstructed exhaust ports on a diesel engine can cause（）

A.over-speeding of the engine
B.failure of the engine to shut down
C.no effect of engine mounting bolts
D.high exhaust temperatures

單項選擇題

A diesel engine is turned at normal cranking speed and no ignition occursThis could be the result of （）

A.low lube oil temperature
B.low starting air temperature
C.air bubbles in the fuel oil system
D.water in the starting air system

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