NATE Heat Pump Exam Questions and Answers Latest Updated 2024/2025 (GRADED A+)

NATE Heat Pump Exam Questions and Answers Latest Updated 2024/2025 (GRADED A+) 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: B: Cooling mode 2. 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 NATE Heat Pump Exam Questions and Answers Latest Updated 2024/2025 (GRADED A+) 2 / 15 D: Emergency heating mode: A: Heating mode 3. Which of the following components is exclusive to the heat pump? A: Condenser B: Oil separator C: Reversing valve D: Accumulator: C: Reversing valve 4. 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 3 / 15 D: 450 cfm per ton: D: 450 cfm per ton 5. 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: A: Condenser, evaporator 6. 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: D: -459 degrees F Technically this is true, but not practical. A heat pump is doing good to continue to 4 / 15 work below 10 deg F. 7. 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 D: Some use the bi-flow filter-drier and others use two filter-driers with check valves: D: Some use the bi-flow- filter-drier and others use two filter-driers with check valves 8. The correct way to size a heat pump is to perform both heating and cooling load calculations and select the heat pump size by: 5 / 15 A: Adding the heating load and cooling loads B: Subtracting the smaller load from the larger load C: Using the heating load to size the system D: Using the cooling load to size the system: D: Using the cooling load to size the system 9. Auxiliary electric heat is necessary because: A: It provides heat for the home during defrosts B: It provides heat for the home in the event of a heat pump failure C: It provides heat for the home if the heat pump is unable to meet the demand for heat D: All of the above: D: All of the above 10. Reading a voltage across the contacts of the outdoor thermostat means: A: The thermostat contacts are closed EMAIL ME: 6 / 15 B: The thermostat contacts are open C: The thermostat contacts are stuck D: The thermostat contacts are working correctly: B: The thermostat contacts are open 11. Which of the following is not a type of heat pump? A: Ground to air B: Air to air C: Water to air D: Direct coupled: D: Direct coupled EMAIL ME: 7 / 15 12. The coefficient of performance is determined by: A: Dividing the output btuh by the input btuh B: Dividing the input btuh by the output btuh C: Multiplying the input by the output D: Subtracting the output from the input: B: Dividing the input btuh by the output btuh 13. The "balance point" of a heat pump is: A: The lowest temperature at which the heat pump can meet the heating requirement for the structure B: The lowest temperature at which the heat pump can operate C: The temperature at which the heat pump has the highest efficiency D: The point at which the heating and cooling loads meet: A: The lowest temperature at which the heat pump can meet the heating requirement for the structure