Practice test

HVAC Practice Exam 4

Free 25-question HVAC foundations review on HCFC phaseout, charging methods, troubleshooting basics, combustion, and airflow. Instant scoring with explanations.

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These questions are for study practice only and are not official exam questions.

Question 1

1

The phaseout schedule for HCFCs such as R-22 was driven by:

Question 2

2

Which document must accompany refrigerant that is sold or transferred for reclamation?

Question 3

3

When evacuating a system before recovery is complete, a technician should:

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