Residential HVAC Installation Practice Exam

Question: 1 / 400

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

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.

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Cfm increases

No impact on cfm

Increases energy consumption

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