Practice Test GeeksHVAC - Heating, Ventilation, and Air Conditioning Practice Test

FREE HVAC Systems and Components Questions and Answers

FREE HVAC practice test 2026 online. 100s of questions and answers for NATE & EPA 608 certification exams. Pass your test! [Updated March 2026]

HVAC - Heating, Ventilation, and Air ConditioningBy Mike JohnsonApr 2, 20261 min read
FREE HVAC Systems and Components Questions and Answers

About the Author

Mike JohnsonNATE Certified, EPA 608, BS HVAC/R Technology

NATE Certified HVAC Technician & Licensing Exam Trainer

Universal Technical Institute

Mike Johnson is a NATE-certified HVAC technician and EPA 608 universal-certified refrigerant handler with a Bachelor of Science in HVAC/R Technology. He has 19 years of commercial and residential HVAC installation and service experience and specializes in preparing technicians for NATE certification, EPA 608, A2L refrigerant safety, and state HVAC contractor licensing examinations.