NATE Heat Pump Exam Questions and
Answers
1.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
ANS: 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
D: Emergency heating mode
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,ANS: 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
ANS: 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
D: 450 cfm per ton
ANS: 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
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, . A: Condenser, evaporator
B: Evaporator, condenser
C: Compressor, accumulator
D: Accumulator, condenser
ANS: A: Condenser, evaporator
6.Heat is present in winter outdoor air until the outside air
ambient tempera- ture reaches a low temperature of:
A: 0 degrees
F B: 32
degrees F C:
273 degrees
F
D: -459 degrees F
ANS: 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.
7.The heat pump utilizes:
A: Two filter-driers with check
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Answers
1.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
ANS: 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
D: Emergency heating mode
1/
28
,ANS: 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
ANS: 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
D: 450 cfm per ton
ANS: 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
2/
28
, . A: Condenser, evaporator
B: Evaporator, condenser
C: Compressor, accumulator
D: Accumulator, condenser
ANS: A: Condenser, evaporator
6.Heat is present in winter outdoor air until the outside air
ambient tempera- ture reaches a low temperature of:
A: 0 degrees
F B: 32
degrees F C:
273 degrees
F
D: -459 degrees F
ANS: 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.
7.The heat pump utilizes:
A: Two filter-driers with check
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28
