A room measures 38' x 38' x 10' high. How many CFM enters and leaves the room if 55,920 cubic feet of air moves through the room each hour?

To determine the CFM (Cubic Feet per Minute) entering and leaving the room, you start by noting that the total air movement through the room is given as 55,920 cubic feet per hour. To convert this hourly measurement to a per-minute basis, you divide the total cubic feet by the number of minutes in an hour, which is 60.

Performing the calculation:

55,920 cubic feet per hour ÷ 60 minutes per hour = 932 CFM.

This means that 932 cubic feet of air is moving into the room every minute, and the same amount is leaving the room to maintain air balance. Hence, the answer reflects the calculated airflow rate accurately, making it the correct choice.

The provided answer aligns with standard units of airflow measurement used in HVAC (Heating, Ventilation, and Air Conditioning) practice, where CFM is critical for ensuring proper ventilation and air exchange rates in various spaces.