The maximum rate of air change is __________(a) 30 per min(b) 30 per hour(c) 60 per min(d) 60 per hourThe question was posed to me during an interview for a job.My question is taken from Functional Requirements of Ventilation System topic in chapter Acoustics and Ventilation of Construction & Building Materials

The maximum rate of air change is __________(a) 30 per min(b) 30 per h

1.	The maximum rate of air change is __________(a) 30 per min(b) 30 per hour(c) 60 per min(d) 60 per hourThe question was posed to me during an interview for a job.My question is taken from Functional Requirements of Ventilation System topic in chapter Acoustics and Ventilation of Construction & Building Materials
Answer» Correct choice is (d) 60 per HOUR The BEST I can explain: Air change per hour is defined as the volume of OUTSIDE air ALLOWED in a room per hour as compared to the volume of the room. The maximum RATE of air change is 60 per hour while the minimum rate of air change is 1 per hour.

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