NATE ICE Heat Pump Exam Questions with
100% Correct Answers
What is the purpose of the reversing valve on a air to air heat pump?
A. it reverses the direction of the compressor
B. it changes the flow of refrigerant, making the outdoor coil the condenser during the winter months
C. it changes the flow of refrigerant, making the indoor coil the condenser during the winter months
D. it changes the flow of refrigerant, making the indoor coil the condenser during the summer months
C. it changes the flow of refrigerant, making the indoor coil the condenser during the winter months
on a reversing valve solenoid, what is connected to the top tube?
A. the compressor discharge line
B. the compressor suction line
C. the indoor coil
D. the outdoor coil
A. the compressor discharge line
on a reversing valve solenoid, what is connected to the bottom center tube?
A. the compressor discharge line
B. the compressor suction line
C. the indoor coil
D. the outdoor coil
B. the compressor suction line
what pressure difference must be between the low side and the high side of the heat pump system
for the reversing valve to operate properly?
A. 25 psig
B. 50 psig
C. 75 psig
D. 100 psig
C. 75 psig
where are the check valves located on a air to air heat pump?
A. oh the outdoor coil
B. on the indoor coil
C. on the outdoor and indoor coil
D. on the suction line
C. on the outdoor and indoor coil
How are the check valves connected in a heat pump system?
A. on the inlet of the accumulator
B. in parallel with both metering devices
C. in series with one metering device and parallel with the other
D. both B and C
D. both B and C
100% Correct Answers
What is the purpose of the reversing valve on a air to air heat pump?
A. it reverses the direction of the compressor
B. it changes the flow of refrigerant, making the outdoor coil the condenser during the winter months
C. it changes the flow of refrigerant, making the indoor coil the condenser during the winter months
D. it changes the flow of refrigerant, making the indoor coil the condenser during the summer months
C. it changes the flow of refrigerant, making the indoor coil the condenser during the winter months
on a reversing valve solenoid, what is connected to the top tube?
A. the compressor discharge line
B. the compressor suction line
C. the indoor coil
D. the outdoor coil
A. the compressor discharge line
on a reversing valve solenoid, what is connected to the bottom center tube?
A. the compressor discharge line
B. the compressor suction line
C. the indoor coil
D. the outdoor coil
B. the compressor suction line
what pressure difference must be between the low side and the high side of the heat pump system
for the reversing valve to operate properly?
A. 25 psig
B. 50 psig
C. 75 psig
D. 100 psig
C. 75 psig
where are the check valves located on a air to air heat pump?
A. oh the outdoor coil
B. on the indoor coil
C. on the outdoor and indoor coil
D. on the suction line
C. on the outdoor and indoor coil
How are the check valves connected in a heat pump system?
A. on the inlet of the accumulator
B. in parallel with both metering devices
C. in series with one metering device and parallel with the other
D. both B and C
D. both B and C
