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Master of HVAC: The Ultimate Heating & Cooling Maintenance Quiz
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What is the primary 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 large debris before it enters the sewer
B
To prevent sewer gases from entering the HVAC system and home
C
To increase the velocity of water drainage
D
To store reserve water for the humidifier
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