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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

Blow-off of the relief valves of the engines cylinders may be caused by （）.

A.too low lead
B.water in fuel
C.too tight spring
D.leakage

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单项选择题

Before starting the turning gear, （） should be worked by hand to minimize corrosive action on the liners.

A.the indicators
B.the starting valves
C.the cylinder lubricators
D.the turning gear

单项选择题

Before starting the engine the air bottle should be （）.

A.pumped up
B.loaded
C.discharged
D.opened

单项选择题

Before replacing a piston you should check the rings to see that all clearances and gaps are within the permissible （）.

A.deflection
B.discrepancy
C.error
D.tolerance

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