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單項(xiàng)選擇題

An auxiliary diesel engine may fail to start due to（）

A.low exhaust back pressure
B.high lube oil temperature
C.insufficient cranking speed
D.excessive fuel atomization

單項(xiàng)選擇題

Diesel engine exhaust noise can be reduced in an exhaust muffler by （）

A.changing the direction of exhaust gas flow
B.increasing the exhaust gas velocity
C.changing the exhaust gas weight
D.increasing the exhaust gas static pressure

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A condition contributing to diesel engine piston rings sticking in the ring grooves, is insufficient ring clearance at the ring（）

你可能感興趣的試題

An auxiliary diesel engine may fail to start due to（）

Diesel engine exhaust noise can be reduced in an exhaust muffler by （）

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