Practice test

HVAC Practice Exam 13

Advanced HVAC practice exam 13: 25 questions on the AIM Act phasedown, zeotropic blend glide, system troubleshooting, and furnace flame and draft diagnostics.

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

Question 1

1

Under the AIM Act phasedown schedule, the largest single step-down in allowed HFC consumption (to 40 percent of baseline) occurs in:

Question 2

2

R-454B is being adopted as an R-410A replacement. Its ASHRAE 34 safety group is:

Question 3

3

When transferring refrigerant to a recovery cylinder, the cylinder must be evacuated and weighed empty so the technician can:

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