單項選擇題

In the process of the stand-by, warm-up the engine usually through give preheat of which parts of the diesel engine?（）

A.cooling water of the cooling system
B.fuel of the FO system
C.LO of the LO system
D.cooling water of the cooling system and LO of the LO system

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單項選擇題

The main purpose of warming the parts of the main engine is （）

A.to reduce heat stress
B.to reduce low temperature corrosion
C.to improve firing and starting performance
D.fuel saving

單項選擇題

The main purpose of starting the diesel engine on air briefly is（）

A.to inspect if the cylinder has the water leakage
B.to expel out the residual water/gas/oil from the cylinder
C.to check if fuel supply is normal
D.A and B