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Heating, Ventilation, and Air Conditioning Essentials Quiz
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What is the main purpose of a "P-trap" installed in an HVAC condensate drain line?
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50-50
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Audience
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A
To catch dropped jewelry
B
To prevent sewer gases and outside air from being drawn into the HVAC system
C
To speed up the flow of water
D
To filter out large dust particles
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