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________________ is the process by which the required amount of moisture is taken out from the air.

(a) Condensation

(b) Dehumidification

(c) Humidification

(d) Absorption

The question was asked by my college director while I was bunking the class.

I would like to ask this question from Variations in Ventilation System with Climate in chapter Acoustics and Ventilation of Construction & Building Materials

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Correct answer is (b) Dehumidification

To explain I would say: The Dehumidification may be carried out by first bringing down the temperature of air below the Dew Point, then condensing out the required quantity of moisture from it and then reheating the air with dry heat upto the desired temperature.

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