NATE
NATE HEAT PUMP EXAM QUESTIONS AND ANSWERS
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?
,NATE
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
,NATE
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
, NATE
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
NATE HEAT PUMP EXAM QUESTIONS AND ANSWERS
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?
,NATE
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
,NATE
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
, NATE
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
