單項選擇題

When fuel enters the crankcase of a diesel engine, it （）

A.dilutes the lube oil and reduces its viscosity
B.forms sulfuric acid in the lube oil
C.causes pitting and failure of the bearings
D.causes sludge deposits on valve stems

你可能感興趣的試題

單項選擇題

In the construction of a diesel engine, what is the purpose of end plates?（）

A.To provide accessibility to the cylinder liners
B.To add stability to the engine block
C.To add rigidity to the block and a surface for attaching other parts
D.To make a surface for the base

單項選擇題

A turbocharged, four-stroke/cycle diesel engine has a larger valve overlap than a naturally aspirated four-stroke/cycle diesel engine, in order to in crease the （）.

A.temperature of the exhaust gases
B.energy supplied to the turbocharger
C.air pressure to the intake manifold
D.purge of exhausted gases from the cylinders

无码高清视频|成人自拍视频|欧美成人午夜无码A片秀色直播|草美女视频网站|美女被操网站在线观看

When fuel enters the crankcase of a diesel engine, it （）

你可能感興趣的試題

In the construction of a diesel engine, what is the purpose of end plates?（）

A turbocharged, four-stroke/cycle diesel engine has a larger valve overlap than a naturally aspirated four-stroke/cycle diesel engine, in order to in crease the （）.