Residential HVAC Installation Practice Exam 2026 - Free HVAC Practice Questions and Study Guide

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Why is it essential to calculate the cfm accurately in an HVAC system installation?

To determine the color of the air

To ensure proper air circulation and ventilation

Calculating the cfm, or cubic feet per minute, is an important step in an HVAC system installation because it helps ensure proper air circulation and ventilation. Option A is incorrect because air color is not a factor in HVAC installation. Option C is incorrect because humidity level can be measured separately from cfm. Option D is incorrect because outdoor temperature regulation is not directly related to cfm calculation. In summary, calculating the cfm accurately is essential for proper air circulation and ventilation in an HVAC system installation.

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To measure the humidity level indoors

To regulate the outdoor temperature

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