NATE Heat Pump Exam Questions and Answers A+ Grade|NATE Heat Pump Exam Prep 2026/2027 – Verified Edition

NATE Heat Pump Exam questions and
answers 2026\2027 A+ Grade
Charging a heat pump with refrigerant is best accomplished in the _______ mode.



A: Heating mode



B: Cooling mode



C: Defrost mode



D: Emergency heating mode
- correct answer B: Cooling mode



Heat pumps can provide both heating in the winter and cooling in the summer. In which mode is the
heat pump more efficient?



A: Heating mode



B: Cooling mode



C: Defrost mode

, D: Emergency heating mode
- correct answer A: Heating mode



Which of the following components is exclusive to the heat pump?



A: Condenser



B: Oil separator



C: Reversing valve



D: Accumulator
- correct answer C: Reversing valve



Which of the following airflow rates is the most reasonable for a heat pump system operating in the
heating cycle?



A: 200 cfm per ton



B: 300 cfm per ton



C: 400 cfm per ton



D: 450 cfm per ton
- correct answer D: 450 cfm per ton



During the heat pump's cooling cycle, the outdoor coil is utilized as a _________ while the indoor coil is
utilized as a____________.



A: Condenser, evaporator

, B: Evaporator, condenser



C: Compressor, accumulator



D: Accumulator, condenser
- correct answer A: Condenser, evaporator



Heat is present in winter outdoor air until the outside air ambient temperature reaches a low
temperature of:



A: 0 degrees F



B: 32 degrees F



C: 273 degrees F



D: -459 degrees F
- correct answer D: -459 degrees F



Technically this is true, but not practical. A heat pump is doing good to continue to work below 10 deg F
unless specifically designed for lower temperatures.



The heat pump utilizes:



A: Two filter-driers with check valves



B: One bi-flow filter-drier



C: A single mono-flow filter-drier in the liquid line