The basic airflow equation CFM = Area × Velocity requires area in which unit?

The basic airflow equation CFM = Area ×

Multiple choice — select the best answer

ASquare inches
BSquare feet
CSquare meters
DLinear feet

✓ Correct answer: B. Square feet When velocity is in feet per minute (FPM), area must be in square feet to produce CFM directly. Convert square inches to square feet by dividing by 144.

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Topic: Airflow & Ductwork

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The basic airflow equation CFM = Area × Velocity requires area in which unit?

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