HEAT PUMP NATE EXAM |ACTUAL QUESTIONS AND
VERIFIED ANSWERS|BRAND NEW 2026-2027
UPDATE|GRADED A+
Question 1
An air-to-air heat pump has many of the same components as an air conditioning system.
The major difference is that a heat pump also has an
CORRECT ANSWER
Reversing valve
Question 2
What is the difference between "demand defrost" and "timed defrost"?
CORRECT ANSWER
Demand defrost happens only when needed and timed defrost is based on
time/temperature.
Question 3
The thermostat that controls the auxiliary electric heat according to the outdoor
temperature is called the;
CORRECT ANSWER
Outdoor ambient thermostat
Question 4
The outdoor temperature at which the heat pump provides the same amount of heat as
the heat loss of the conditioned space without an auxiliary heat is known as the;
1
,CORRECT ANSWER
Initial balance point
Question 5
At what temperature is an outdoor ambient thermostat normally set?
CORRECT ANSWER
Slightly above the initial balance point.
Question 6
The outdoor coil is frozen solid on a "no heat" service call. The most likely reason is;
CORRECT ANSWER
The outdoor fan is inoperative.
Question 7
In order to determine a heat pumps' balance point, you must first calculate;
CORRECT ANSWER
The building's heat load.
Question 8
When a heat pump is used for heating and cooling, the system is sized by the;
CORRECT ANSWER
Cooling load.
2
, Question 9
A high efficiency heat pump system designed to function from high to low ambient
conditions below 10°F may have?
CORRECT ANSWER
Two compressors which operate in series.
Question 10
Room thermostats for heat pumps should be installed
CORRECT ANSWER
As near to the main return air grill as possible.
Question 11
When the heat pump compressor has malfunctioned, the customer has the option to
switch the system into
CORRECT ANSWER
Emergency heat mode.
Question 12
Start up with a night set back digital thermostat requires the technician to always
CORRECT ANSWER
Teach the customer how to program the thermostat.
Question 13
3
VERIFIED ANSWERS|BRAND NEW 2026-2027
UPDATE|GRADED A+
Question 1
An air-to-air heat pump has many of the same components as an air conditioning system.
The major difference is that a heat pump also has an
CORRECT ANSWER
Reversing valve
Question 2
What is the difference between "demand defrost" and "timed defrost"?
CORRECT ANSWER
Demand defrost happens only when needed and timed defrost is based on
time/temperature.
Question 3
The thermostat that controls the auxiliary electric heat according to the outdoor
temperature is called the;
CORRECT ANSWER
Outdoor ambient thermostat
Question 4
The outdoor temperature at which the heat pump provides the same amount of heat as
the heat loss of the conditioned space without an auxiliary heat is known as the;
1
,CORRECT ANSWER
Initial balance point
Question 5
At what temperature is an outdoor ambient thermostat normally set?
CORRECT ANSWER
Slightly above the initial balance point.
Question 6
The outdoor coil is frozen solid on a "no heat" service call. The most likely reason is;
CORRECT ANSWER
The outdoor fan is inoperative.
Question 7
In order to determine a heat pumps' balance point, you must first calculate;
CORRECT ANSWER
The building's heat load.
Question 8
When a heat pump is used for heating and cooling, the system is sized by the;
CORRECT ANSWER
Cooling load.
2
, Question 9
A high efficiency heat pump system designed to function from high to low ambient
conditions below 10°F may have?
CORRECT ANSWER
Two compressors which operate in series.
Question 10
Room thermostats for heat pumps should be installed
CORRECT ANSWER
As near to the main return air grill as possible.
Question 11
When the heat pump compressor has malfunctioned, the customer has the option to
switch the system into
CORRECT ANSWER
Emergency heat mode.
Question 12
Start up with a night set back digital thermostat requires the technician to always
CORRECT ANSWER
Teach the customer how to program the thermostat.
Question 13
3
