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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(驾驶专业) > 航海英语 > 国际航海技术规则 > 液化气体与IGC规则

单项选择题

The vapor pressure of a gas is the pressure necessary to keep it in a(n)（）.

A.soluble state
B.solid state
C.liquefied state
D.inert state

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The tops of vents from gasoline tanks should terminate（）.

A.in open air
B.inside cabins
C.in machinery space
D.underwater

单项选择题

The storage device for nitrogen-pressurized hydraulic fluid，which is used in closing the blowout preventers is called the（）.

A.actuator
B.annulus
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D.annular preventer

单项选择题

The shut off valve at the gasoline tank which can be operated from outside the tank space （）.

A.controls the amount of gasoline to the engine
B.shuts off the gasoline supply at the tank
C.is used if the gasoline tank leaks
D.All of the above

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