First-Year HVAC Service Certification Practice Test

Question: 1 / 400

In terms of airflow, what does CFM stand for?

Cubic Feet Machine

Cubic Foot Monitoring

Cubic Feet per Minute

CFM stands for Cubic Feet per Minute, which is a measurement of the volumetric flow rate of air. This unit is commonly used in HVAC systems to quantify the amount of air being moved or filtered within a specific timeframe. Understanding CFM is crucial for ensuring proper ventilation, maintaining indoor air quality, and optimizing the efficiency of heating and cooling systems.

Airflow measurements are integral to the design and operation of HVAC systems because they help technicians assess system performance, balance airflow, and ensure that each space is receiving the correct amount of conditioned air. High or low CFM readings can indicate issues with ductwork, filters, or equipment performance, making it essential for technicians to accurately understand and utilize this measurement in their work.

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Cubic Feeds per Month

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