Where people are working, there has to be ______________ to cause proper ventilation of the premises.(a) Air change(b) Humidity(c) Temperature(d) MoistureThis question was addressed to me by my college director while I was bunking the class.This question is from Types of Ventilation topic in portion Acoustics and Ventilation of Construction & Building Materials

Where people are working, there has to be ______________ to cause prop

1.	Where people are working, there has to be ______________ to cause proper ventilation of the premises.(a) Air change(b) Humidity(c) Temperature(d) MoistureThis question was addressed to me by my college director while I was bunking the class.This question is from Types of Ventilation topic in portion Acoustics and Ventilation of Construction & Building Materials
Answer» The correct choice is (a) AIR change Best explanation: The minimum and maximum rates of air change per hour is 1 and 60 respectively. If the rate of change is LESS than 1/hour, it will not create any appreciable effect of the ventilation system. On the other hand, at the rate of air CHANGES more than 60/hour, it will result in discomfort due to HIGH velocities of air.

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