What does FPM stand for in HVAC calculations?

Prepare for the HVAC D-2 License Exam. Study with flashcards and multiple-choice questions. Each question comes with hints and explanations. Get ready for your HVAC certification!

Multiple Choice

What does FPM stand for in HVAC calculations?

Explanation:
FPM stands for Feet Per Minute. In HVAC calculations, this unit expresses air velocity inside ducts. Knowing how fast the air is moving lets you size ducts and predict flow, because flow rate (in cubic feet per minute, CFM) comes from multiplying velocity by the duct’s cross-sectional area. For example, if air travels through a duct with an area of 4 ft² at 1,200 ft/min, the flow is 4,800 CFM. You can convert to other velocity units if needed, since 1 ft/min equals 1/60 ft/s, but FPM specifically means feet per minute. The other options aren’t standard velocity units used for HVAC airflow calculations.

FPM stands for Feet Per Minute. In HVAC calculations, this unit expresses air velocity inside ducts. Knowing how fast the air is moving lets you size ducts and predict flow, because flow rate (in cubic feet per minute, CFM) comes from multiplying velocity by the duct’s cross-sectional area. For example, if air travels through a duct with an area of 4 ft² at 1,200 ft/min, the flow is 4,800 CFM. You can convert to other velocity units if needed, since 1 ft/min equals 1/60 ft/s, but FPM specifically means feet per minute. The other options aren’t standard velocity units used for HVAC airflow calculations.

More Multiple Choice Questions
Subscribe

Get the latest from Passetra

You can unsubscribe at any time. Read our privacy policy