A gym ventilation exercise specifies 50,000 ft³ of volume and a design target of 6 air changes per hour. What airflow corresponds to that target?

Texas ACR A exam practice question · Venting

A gym ventilation exercise specifies 50,000 ft³ of volume and a design target of 6 air changes per hour. What airflow corresponds to that target?

A300,000 cfm
B20,000 cfm
5,000 cfm
D833 cfm

Where to look it up

https://www.cdc.gov/niosh/ventilation/faq/index.html

Why C is correct

6 × 50,000 / 60 = 5,000 cfm. Volume must be converted using the hourly target and 60 minutes per hour; no universal cfm-per-cubic-foot requirement is implied.

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A gym ventilation exercise specifies 50,000 ft³ of volume and a design target of 6 air changes per hour. What airflow corresponds to that target?

A gym ventilation exercise specifies 50,000 ft³ of volume and a design target of 6 air changes per hour. What airflow corresponds to that target?

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