Practice test

Oregon HVAC Practice 8

Practice 8 for HVAC Exam learners in Oregon: 25 questions, explained answers, and a review routine.

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

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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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