單項(xiàng)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

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單項(xiàng)選擇題

When a diesel engine compression pressure is checked, the indicator is connected to the （）

A.cylinder exhaust ports
B.injection line
C.cylinder indicator cock
D.banjo oiler line

單項(xiàng)選擇題

Diesel engine mufflers accomplish noise reduction by （）

A.reducing exhaust gas velocity
B.increasing the frequency of gas vibration
C.the use of long head pipes
D.the use of zinc electrodes

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

你可能感興趣的試題

When a diesel engine compression pressure is checked, the indicator is connected to the （）

Diesel engine mufflers accomplish noise reduction by （）