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This test presents you with a wide variety of technical questions about gas heating, air conditioners, heat pumps, refrigeration systems, the refrigeration cycle, combustion venting systems, and equipment identification. This is a good test for aspiring HVAC  apprentices, HVAC professionals, or for energy auditors, inspectors, crew chiefs, and others who need to understand heating and cooling systems at a professional level.

If you use the test’s three tries, you might optimize your score. Take notes about the topics you need to study during the first try. If you pass this test with 80% or above, you’ll get 2.5 CEUs, and receive a certificate displaying your passing score.