in HVAC You need at least these two measurements to calculate volume of air flowing through a duct. (Select all that apply) Select all that apply.
A. Velocity pressure B. Air Temperature C. Duct shape D. Duct area
To calculate the volume of air flowing through a duct, you need at least the following two measurements:
A. Velocity pressure
D. Duct area
Velocity pressure helps determine the velocity of the air, and duct area is necessary to calculate the volume flow rate using the formula:
[ \text{Volume Flow Rate} = \text{Velocity} \times \text{Duct Area} ]
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