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單項(xiàng)選擇題

A sudden drop in compression pressure in one cylinder of a diesel engine can be caused by（）

A.a leaking fuel injector nozzle
B.a clogged air filter
C.excessively early fuel injection
D.malfunctioning valves

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單項(xiàng)選擇題

One end of a diesel engine cylinder is sealed by the cylinder head and the other end by the （）

A.crankcase
B.piston
C.cylinder liner
D.crank cheek

單項(xiàng)選擇題

The exhaust system for a turbocharged two-stroke/cycle diesel engine functions to（）

A.discharge exhaust gases and smoke
B.furnish energy to the turbocharger
C.reduce engine room noise
D.all of the above