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單項選擇題

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

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單項選擇題

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

單項選擇題

Incomplete combustion in a running diesel engine can cause piston rings to become stuck as a result of （）

A.residual carbon deposits
B.lube oil viscosity breakdown
C.uneven heat expansion of the rings
D.uneven heat expansion of the piston

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