单项选择题

If a diesel engine were running at 20% overload with a smoky exhaust, you should（）

A.stop the engine immediately to prevent damage
B.increase lube oil pressure
C.slow the engine allowing it to gradually cool
D.decrease the cooling water it temperature to the water jacket

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相关考题

单项选择题

A substantial increase pressure could be an indication of a/an （）

A.worn cylinder liner
B.faulty cylinder relief valve
C.excessive lube oil pressure
D.excessive scavenge air pressure

单项选择题

A water jacket is placed around the exhaust manifolds of propulsion diesel engines to（）

A.reduce heat radiation to the engine room
B.aid in preventing turbocharger overheating
C.condense and drain moisture from exhaust gases
D.dampen exhaust gas pulsations in the manifold

单项选择题

An increase in diesel engine crankcase pressure generally indicates excessive（）

A.compression pressure
B.lube oil header pressure
C.scavenge air pressure
D.piston ring blow-by