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What are the characteristics of an air lock?

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There is a door at each end. When the outer door of the air lock is opened, men or material may be admitted into the compartment. After the outer door is closed, compressed air is admitted to raise pressure in the air lock to the level of the pressure in the working chamber, and the inner door can be opened. The reverse of this procedure takes place on leaving the working chamber.

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Similar questions: What characteristics best describe an air lock? What distinguishes an air lock? What characterizes an air lock? [ Hide these questions ]

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