單項(xiàng)選擇題

The purpose of treating the cooling water of the diesel engine is to()
Ⅰ. resist the scale formation in the cooling chamber
Ⅱ.lubricate the engine part
Ⅲ.increase thermal capacity
Ⅳ.resist corrosion

A.Ⅰ+Ⅱ
B.Ⅱ+Ⅲ
C.Ⅲ+Ⅳ
D.Ⅰ+Ⅳ


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1.單項(xiàng)選擇題When the ship, its main propulsion device equipped with clutch, arrived at the port and finished with the engine, the correct operation should be()

A.disengaging the clutch firstly, then stopping the main engine
B.stopping the main engine firstly, then disengaging the clutch
C.stopping the cooling water pump firstly, then stopping the main engine
D.stopping the main engine and disengaging the clutch at the same time

3.單項(xiàng)選擇題Before engaging the turning gear and turning the diesel engine, which of the following operation should be done except()

A.open the indicator cocks
B.supply some CYL Oil to cylinder liner wall with lubricator (only for two stoke diesel engine)
C.put the fuel handle in the “stop” position
D.pump up the air bottle

5.單項(xiàng)選擇題Usually, emergency electricity supplies to on board()

A.Cargo winch
B.Windlass
C.Steering gear
D.Main air compressor

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