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In ______________ system, the partial vacuum is created inside of the room by exhausting the vitiated inside air by fans or blowers.

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In ______________ system, the partial vacuum is created inside of the room by exhausting the vitiated inside air by fans or blowers.

(a) Supply

(b) Plenum

(c) Air conditioning

(d) Exhaust

This question was posed to me during an interview.

The above asked question is from Types of Ventilation in division Acoustics and Ventilation of Construction & Building Materials

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The correct answer is (d) Exhaust

For explanation I would say: In exhaust system, the extraction of air from inside sets of the current of fresh air from outside to inside and thus, it becomes possible to provide fresh air to the room through doors and windows. The fans or blowers are installed at suitable places in the outside wall and they are connected to different rooms through duct system.

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