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全部科目 > 水路交通运输技能考试 > 海船船员考试 > 船舶管理(轮机专业) > 轮机英语 > 船舶电气与船舶安全

单项选择题

The abbreviation ‘M/E’ is used to represent the（）

A.measure equipment
B.main electrical
C.my engine
D.main engine

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单项选择题

Where tanks are arranged for either oil or ballast （） must be fitted in the pipe so that only the ballast main or the oil transfer main connected to the tank.

A.a sea water chest
B.a change-over chest
C.a buffer tank
D.a three-way valve

单项选择题

The switchboards are those in which all the live parts are installed behind the panels and only the operating handles and instruments are on the front（）

A.open
B.open front type
C.live front type
D.dead front type

单项选择题

Modern centrifuge designs enable continuous over a considerable period of timeThis is achieved by which is timed to discharge the sludge at regular intervals（）

A.an injection process
B.an ejection process
C.a separation process
D.a heating process

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