Practice test

HVAC Practice Exam 7

A 25-question core HVAC test covering R-410A pressures, blend charging, evacuation, restriction diagnosis, gas pressure, and heat pump defrost.

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Question 1

1

A technician finds R-22 in a system the records say uses R-410A. The safest next step is to:

Question 2

2

Which statement about R-410A pressures versus R-22 is correct?

Question 3

3

A technician must wear eye and skin protection when handling refrigerant because liquid refrigerant can cause:

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