NATE Air-to-Air Heat Pump Exam

NATE Air-to-Air Heat Pump Exam (Latest Update 2026 / 2027) Questions with Verified Answers | 100% Correct | Grade A

Question:

When working with refrigerants, when recovering, charging, or just attaching diagnostic equipment to a refrigeration system or any other container, you should always wear_____.

Answer:

goggles with side shields and gloves

Question:

The room thermostat terminal that is directly connected to the control transformer 24 volt power supply is_____.

Answer:

R

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Question:

What property of refrigerant vapor is especially hazardous in a confined area?

Answer:

The refrigerant is heavier than air.

Question:

The room thermostat terminals that would need to be energized to initiate a call for cooling with a air conditioner are_____.

Answer:

Y&G

Question:

The room thermostat terminals that would need to be energized to initiate a call for cooling with a heat pump are_____.

Answer:

Y&O&G

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Question:

The room thermostat terminals that would need to be energized to initiate a call for heating with a heat pump are_____.

Answer:

Y&G

Question:

When referring to the performance of a system operating in cooling mode of operation, using the Servicer Facts pressure curves, what outdoor temperature minimum should be attained to utilize the chart?

Answer:

65 degrees

Question:

When checking the performance of a system in the cooling mode of operation, using the pressure curves, what should your approximate discharge pressure range be if your indoor SCFM is 1100, your outdoor temperature is 95 degrees, and your indoor wet bulb temperature is 71 degrees?

Answer:

370 to 390 psig

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