HVAC NATE Heat Pump Exam Latest 2026 || Most
Recent Exam 2026-2027 Actual Complete Real Exam
Questions And Correct Answers (Verified Answers)
Already Graded A+ | Guaranteed Success!! Newest
Exam | Just Released!!
When a wet bulb reading is very close to the dry bulb reading
from the same
instrument, what does this indicate? - ANSWER-Relative
humidity is high.
What measurements would be needed to properly evaluate a
complaint of
"drafty" operation with a heating system? - ANSWER-System
TD, Drop, and Static Pressure
What kind of energy does the condenser remove from the
refrigerant? -
ANSWER-Sensible heat and
Latent heat
Where does refrigerant boil? - ANSWER-In the Evaporator.
,What is the common suction line on a heat pump connected
to? - ANSWER-
The indoor coil and the
compressor.
What are the two generally used methods for changing capacity
on demand in a
heat pump? - ANSWER-Two speed compressor. Two
stage thermostat
What are the three things that happen when a heat pump is
cycled into the defrost mode? - ANSWER-Reversing valve
switches to cooling mode, Outdoor fan is shut off, and auxiliary
heat is energized.
What is a duct system that has a single trunk extending in one
or two directions
with many branch ducts? - ANSWER-Extended Plenum
Duct System
What is the effect on supply airflow when static pressure
on the return is
reduced? - ANSWER-Airflow will be
increased.
What is the voltage most often used to power the outdoor unit
in a residential
system? - ANSWER-240V Single
Phase
,What happens if you increased suction pressure on a
reciprocating
compressor? - ANSWER-The capacity would
decrease.
The refrigerants typically used in residential and light
commercial pumps have a
storage life of? - ANSWER-An indefinite
length of time.
A restricted drier can cause what? - ANSWER-Lower than
normal suction
pressure
What blower motor type is generally used on air handling
equipment with
capacities of 4,000 cfm or greater? - ANSWER-Belt driven with
three phases.
Electronic air cleaners can operate with internal voltages
as high as? -
ANSWER-
5000V
What is the purpose of a cross break on the flat sides of
metal ductwork? -
ANSWER-Increases rigidity and
reduces vibration
, Whats the difference between a grille and a register? -
ANSWER-Register is
equipped with a air volume control device,
grille is not.
What is the purpose of a thermostatic expansion valve (TXT,
TEV)? - ANSWER-Meter refrigerant flow to a coil to maintain
superheater refrigerant leaving the coil
What are Disc type temperature limit controls used for? -
ANSWER-Protect
auxiliary heat elements from
overheating.
How are disc type temperature limit controls reset? -
ANSWER-By temperature.
When the heat elements cool the
switch resets.
Where is the sensor of an outdoor ambient thermostat for a
heat pump system
typically installed? - ANSWER-In the entering air stream to
the outdoor coil.
A high pressure limit control is used for what? - ANSWER-
To shut down a
compressor if condensing pressure
becomes excessive
Recent Exam 2026-2027 Actual Complete Real Exam
Questions And Correct Answers (Verified Answers)
Already Graded A+ | Guaranteed Success!! Newest
Exam | Just Released!!
When a wet bulb reading is very close to the dry bulb reading
from the same
instrument, what does this indicate? - ANSWER-Relative
humidity is high.
What measurements would be needed to properly evaluate a
complaint of
"drafty" operation with a heating system? - ANSWER-System
TD, Drop, and Static Pressure
What kind of energy does the condenser remove from the
refrigerant? -
ANSWER-Sensible heat and
Latent heat
Where does refrigerant boil? - ANSWER-In the Evaporator.
,What is the common suction line on a heat pump connected
to? - ANSWER-
The indoor coil and the
compressor.
What are the two generally used methods for changing capacity
on demand in a
heat pump? - ANSWER-Two speed compressor. Two
stage thermostat
What are the three things that happen when a heat pump is
cycled into the defrost mode? - ANSWER-Reversing valve
switches to cooling mode, Outdoor fan is shut off, and auxiliary
heat is energized.
What is a duct system that has a single trunk extending in one
or two directions
with many branch ducts? - ANSWER-Extended Plenum
Duct System
What is the effect on supply airflow when static pressure
on the return is
reduced? - ANSWER-Airflow will be
increased.
What is the voltage most often used to power the outdoor unit
in a residential
system? - ANSWER-240V Single
Phase
,What happens if you increased suction pressure on a
reciprocating
compressor? - ANSWER-The capacity would
decrease.
The refrigerants typically used in residential and light
commercial pumps have a
storage life of? - ANSWER-An indefinite
length of time.
A restricted drier can cause what? - ANSWER-Lower than
normal suction
pressure
What blower motor type is generally used on air handling
equipment with
capacities of 4,000 cfm or greater? - ANSWER-Belt driven with
three phases.
Electronic air cleaners can operate with internal voltages
as high as? -
ANSWER-
5000V
What is the purpose of a cross break on the flat sides of
metal ductwork? -
ANSWER-Increases rigidity and
reduces vibration
, Whats the difference between a grille and a register? -
ANSWER-Register is
equipped with a air volume control device,
grille is not.
What is the purpose of a thermostatic expansion valve (TXT,
TEV)? - ANSWER-Meter refrigerant flow to a coil to maintain
superheater refrigerant leaving the coil
What are Disc type temperature limit controls used for? -
ANSWER-Protect
auxiliary heat elements from
overheating.
How are disc type temperature limit controls reset? -
ANSWER-By temperature.
When the heat elements cool the
switch resets.
Where is the sensor of an outdoor ambient thermostat for a
heat pump system
typically installed? - ANSWER-In the entering air stream to
the outdoor coil.
A high pressure limit control is used for what? - ANSWER-
To shut down a
compressor if condensing pressure
becomes excessive
