Nate heat pump pretest questions and
answers 2025\2026 A+ Grade
One advantage of a self-purging recovery machine is to
- correct answer Purge itselfof most refrigerant after use
The component used to reduce sound transmission and prevent water leaks of a packaged heat pump
installed on a roof is the
- correct answer Curb gasket
Which condition is the most important consideration when installing metal supply ductwork in an
unconditioned crawlspace
- correct answer Insulate the ductwork and wrap with a vapor barrier
Air that remains in the refrigerant circuit of a heat pump because of a poor evacuation will cause
- correct answer High condensing pressures with loss of capacity
A packaged heat pump in a two story installation is to be located at ground level with ductwork running
up the outside wall to a chase in the second floor. What precautions need to be taken with the outside
ductwork
- correct answer It must be insulated and weather proofed
To more accurately sense the temperature of horizontal suction lines that are 1 and an 1 ⅛ inch or
larger, TEV sensing bulb should be mounted at which of the following positions
- correct answer 4 or 8 O'Clock
What is the maximum acceptable supply voltage tolerance for a 120 volt circuit
- correct answer +/- 10%
When checking that a heat pump thermostat is operating properly in heating, the tech should confirm
that the thermostat's first stage switches on the
- correct answer Compressor and the second stage calls for auxiliary heat
answers 2025\2026 A+ Grade
One advantage of a self-purging recovery machine is to
- correct answer Purge itselfof most refrigerant after use
The component used to reduce sound transmission and prevent water leaks of a packaged heat pump
installed on a roof is the
- correct answer Curb gasket
Which condition is the most important consideration when installing metal supply ductwork in an
unconditioned crawlspace
- correct answer Insulate the ductwork and wrap with a vapor barrier
Air that remains in the refrigerant circuit of a heat pump because of a poor evacuation will cause
- correct answer High condensing pressures with loss of capacity
A packaged heat pump in a two story installation is to be located at ground level with ductwork running
up the outside wall to a chase in the second floor. What precautions need to be taken with the outside
ductwork
- correct answer It must be insulated and weather proofed
To more accurately sense the temperature of horizontal suction lines that are 1 and an 1 ⅛ inch or
larger, TEV sensing bulb should be mounted at which of the following positions
- correct answer 4 or 8 O'Clock
What is the maximum acceptable supply voltage tolerance for a 120 volt circuit
- correct answer +/- 10%
When checking that a heat pump thermostat is operating properly in heating, the tech should confirm
that the thermostat's first stage switches on the
- correct answer Compressor and the second stage calls for auxiliary heat
