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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 > 船舶动力装置

单项选择题

Compressed air is used on board ship （）.

A.for starting diesel engines
B.in pneumatic control system
C.in pneumatic tools
D.All the above are true

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单项选择题

Compressed air is supplied by air compression to （）.

A.the air receivers
B.the starting valves
C.the cylinder covers
D.the distributors

单项选择题

Charging-air pressure increases if there is incorrect combustion and drop in the （） of the diesel engine.

A.machine efficiency
B.machinery efficiency
C.mechanical efficiency
D.mechanics efficiency

单项选择题

Charging is the filling of the engine cylinder with a supply or charge of fresh air （） compression.

A.to need
B.ready for
C.want to
D.going to be

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