Ace the NATE Air Conditioning & Heat Pumps Test 2025 – Chill Out and Heat Up Your Career!

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Question: 1 / 400

What is the maximum recommended face velocity for air leaving a supply register?

300 ft/min

450 ft/min

500 ft/min

700 ft/min

The maximum recommended face velocity for air leaving a supply register is generally set at 700 feet per minute. This value is established to ensure optimal comfort and efficiency in air distribution within a space. If the velocity is too high, it can lead to increased noise levels and discomfort for occupants as the air can feel drafty. Keeping the face velocity at or below 700 ft/min helps minimize these potential issues while still providing effective air distribution.

In practice, maintaining this standard allows for a good balance between airflow and comfort. Additionally, exceeding this velocity may lead to turbulence, reducing the efficiency of air delivery and impacting overall system performance. Understanding this maximum face velocity is essential for HVAC professionals when designing and analyzing air distribution systems to ensure a comfortable environment.

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