Residential HVAC Installation Practice Exam

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Prepare for the Residential HVAC Installation Exam with this comprehensive quiz. Test your knowledge with multiple-choice questions and get ready to excel in your HVAC installation career.

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

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What would be the effect on cfm if the HOUSE VOLUME in the cfm calculation formula is reduced?

Cfm decreases
Cfm increases
No impact on cfm
Increases energy consumption

The correct answer is: Cfm decreases

If the HOUSE VOLUME in the CFM (cubic feet per minute) calculation formula is reduced, it would cause the CFM to decrease. This is because the CFM calculation takes into account the volume of air in the house that needs to be heated or cooled. A reduction in house volume means there is less air that needs to be moved, resulting in a decrease in the CFM required for proper heating or cooling of the space. Option B (Cfm increases), option C (No impact on cfm), and option D (Increases energy consumption) are not correct because a reduction in house volume would lead to a decrease in the amount of air that needs to be heated or cooled, therefore reducing the required CFM. This reduction in CFM would not lead to an increase in CFM, have no impact on CFM, or increase energy consumption.