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單項選擇題

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

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單項選擇題

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

單項選擇題

An indication of an overloaded main propulsion diesel engine is （）

A.white smoke in the exhaust
B.high exhaust gas pyrometer readings
C.sparks in the exhaust
D.blue smoke in the exhaust

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