单项选择题

During the watch keeping at sea, the engineer in charge should notify in the event of any serious occurrence or a situation where he is unsure of the action to take（）

A.the master
B.the chief engineer
C.the bridge
D.the company superintendent

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单项选择题

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

单项选择题

The seven segment arrangement for numerical(数字的) display on consoles, test meters and other applications can be either（）

A.UJT or BJT
B.BCD or OCD
C.JFET or IGFET
D.LED or LCD

单项选择题

Usually, emergency electricity supplies to on board（）

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