Practice test

HVAC Practice Exam 8

A 25-question intermediate HVAC exam on recovery problems, superheat and subcooling readings, combustion analysis, ECM blowers, and burnout cleanup.

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

Question 1

1

A recovery machine pulls a system to the required vacuum, but pressure rises back after closing. This usually means:

Question 2

2

For an appliance with a 50-pound charge, EPA leak-repair rules generally require the owner to:

Question 3

3

Push-pull recovery should be stopped and switched to vapor recovery when:

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