單項選擇題

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

你可能感興趣的試題

單項選擇題

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

單項選擇題

In a diesel engine exhaust system, the cooling of the exhaust gases below their dew point, will result in （）

A.increased engine back pressure
B.sulfuric acid corrosion
C.surface pitting of the turbocharger
D.moisture impingement on the turbocharger compressor blade

99色精品-9色在线-99色在线-99色视频 国产欧美日产一区二区三区_亚洲精品亚洲人成在线观看_四虎在线精品永久观看_免费一级a一片久久精

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

你可能感興趣的試題

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

In a diesel engine exhaust system, the cooling of the exhaust gases below their dew point, will result in （）

99色精品-9色在线-99色在线-99色视频国产欧美日产一区二区三区_亚洲精品亚洲人成在线观看_四虎在线精品永久观看_免费一级a一片久久精