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For working a temperature of 21 degree Celsius, range of 30% to 70% of ____________ is desirable.

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For working a temperature of 21 degree Celsius, range of 30% to 70% of ____________ is desirable.

(a) Saturated air

(b) Dry bulb temperature

(c) Relative humidity

(d) Wet bulb temperature

This question was addressed to me in my homework.

Query is from Types of Ventilation topic in chapter Acoustics and Ventilation of Construction & Building Materials

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Correct answer is (c) Relative humidity

For explanation I would say: The value of relative humidity is obtained by comparing dry bulb and wet bulb temperature. For higher temperatures, the low humidity and greater air movements are necessary for removing greater portion of heat from the body.

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