單項(xiàng)選擇題

The main purpose of inspection for a running diesel engine is（）

A.testing for the mechanical load and the thermal load
B.inspecting thermal and mechanical condition of the engine
C.inspecting each system and exhaust temperature
D.testing for compress pressure and explosion pressure

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單項(xiàng)選擇題

During the diesel engine running, the water level of FW expansion tank should normally kept in the （） level of glass tube.

A.the highest
B.above 3/4
C.1/2-3/4
D.the lowest

單項(xiàng)選擇題

The normal color of the exhaust gas of the diesel will be （）

A.achromatism or thin gray
B.thin white
C.sky-blue
D.black

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