Practice test

HVAC Practice Exam 9

A 25-question intermediate HVAC exam on recovery math, charge faults, TXV equalizers, gas clocking, temperature rise, and duct static pressure.

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

Question 1

1

A technician must recover R-22 from a 10-pound split system before replacing the compressor. The correct recovery target is:

Question 2

2

A blend that has fractionated in the cylinder (vapor withdrawn) is best handled by:

Question 3

3

Calculating refrigerant to recover, a 7.5-ton unit holding 22 lb of R-410A must be fully recovered. The technician should:

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