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

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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

單項(xiàng)選擇題

Misfiring in a diesel engine at light loads can be caused by（）

A.high lube oil temperature
B.low lube oil temperature
C.excessive cylinder cooling
D.high air injection pressure

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

你可能感興趣的試題

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

Misfiring in a diesel engine at light loads can be caused by（）