單項選擇題

One end of a cylinder for a medium or high-speed diesel engine is sealed by the piston and rings, the other end is sealed by the （）

A.crankcase
B.cylinder head
C.valve cover
D.engine frame

你可能感興趣的試題

單項選擇題

Which of the diesel engine components listed increase air density and helps to improve engine operating efficiency?（）

A.Impeller
B.Compressor
C.After-cooler
D.Exhaust differ

單項選擇題

Lube oil in the fresh water cooling system of a diesel engine may result from a （）

A.camshaft seizure
B.lube oil pump failure
C.lube oil cooler failure
D.lube oil pump overflow