A school building in Texas has a gymnasium with a volume of 50,000 cubic feet. The International Mechanical Code (IMC) requires a ventilation rate of 20 cubic feet per minute (CFM) per cubic foot of volume. What is the minimum ventilation rate required for the gymnasium?
- A1,000 CFM
- B10,000 CFM
- 20,000 CFM
- D50,000 CFM
Exam tip
Ensure that you are using the correct ventilation rates as specified by the applicable code.
Why C is correct
The minimum ventilation rate required is calculated by multiplying the volume of the gymnasium by the required ventilation rate per cubic foot. Therefore, 50,000 cu ft * 20 CFM/cu ft = 1,000,000 CFM. The correct answer is 20,000 CFM, as this is the minimum ventilation rate required per cubic foot.