FCC HVAC STUDY GUIDE EXAM 2025
QUESTIONS AND ANSWERS
What is the name of EPA's program that identifies refrigerants with lower overall risks to
human health and the environment? - ANS the Significant New Alternatives Policy(SNAP)
Program.
what is a lawful use of HCFC-22? - ANS Charging any new system designed for R-407c.
how does cooling occur in a direct expansion vapor compression refrigeration system? -
ANS when the liquid refrigerant is vaporized.
which process applies to cleaning refrigerant for immediate reuse by oil separation and single
or multiple passes through devices like replaceable core filter driers which reduce moisture and
acidity? - ANS recycling
what should the technician review when working with any solvents chemicals or refrigerants? -
ANS safety data sheets (SDS).
in general which elastomers for use in seals and gaskets are NOT compatible with HFO
refrigerants? - ANS none
new household refrigerators may NOT be factory charged with? - ANS R-600a
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, a standard vacuum pump designed for evacuation and dehydration can... - ANS be used
alone as a system dependent recovery device.
which condition requires accessing both the high and low side of the system for refrigerant
recovery. - ANS when the compressor does not run.
after installation of a field piped split system the unit should first be pressurized with... -
ANS nitrogen and leak checked.
which leak repair category does the EPA define as the refrigeration appliances used in the retail
food cold storage warehouse sectors? - ANS industrial process refrigeration (IPR)
when recovery is first started at what phase is the refrigerant removed to save recovery time? -
ANS the liquid phase
how can you speed up the removal of the refrigerant charge from a system? - ANS cooling
the recovery cylinder to lower its pressure.
your recovery/recycling device has R-22 in it and you need to recover a R-410A unit. what must
be done? - ANS remove the R-22 from the recovery unit and change the filter.
what is the primary water source for a water cooled recovery units condescending coil. -
ANS the local municipal water supply.
what steps should be taken before using a recovery unit to remove a charge? - ANS the oil
should be changed and the recovery cylinder evacuated.
what statement about recycling and recovery equipment is FALSE? - ANS purchase of
recovery or recycling equipment must be reported to the EPA.
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Page
@COPYRIGHT SIRJOEL 2025/2026
QUESTIONS AND ANSWERS
What is the name of EPA's program that identifies refrigerants with lower overall risks to
human health and the environment? - ANS the Significant New Alternatives Policy(SNAP)
Program.
what is a lawful use of HCFC-22? - ANS Charging any new system designed for R-407c.
how does cooling occur in a direct expansion vapor compression refrigeration system? -
ANS when the liquid refrigerant is vaporized.
which process applies to cleaning refrigerant for immediate reuse by oil separation and single
or multiple passes through devices like replaceable core filter driers which reduce moisture and
acidity? - ANS recycling
what should the technician review when working with any solvents chemicals or refrigerants? -
ANS safety data sheets (SDS).
in general which elastomers for use in seals and gaskets are NOT compatible with HFO
refrigerants? - ANS none
new household refrigerators may NOT be factory charged with? - ANS R-600a
1
Page
@COPYRIGHT SIRJOEL 2025/2026
, a standard vacuum pump designed for evacuation and dehydration can... - ANS be used
alone as a system dependent recovery device.
which condition requires accessing both the high and low side of the system for refrigerant
recovery. - ANS when the compressor does not run.
after installation of a field piped split system the unit should first be pressurized with... -
ANS nitrogen and leak checked.
which leak repair category does the EPA define as the refrigeration appliances used in the retail
food cold storage warehouse sectors? - ANS industrial process refrigeration (IPR)
when recovery is first started at what phase is the refrigerant removed to save recovery time? -
ANS the liquid phase
how can you speed up the removal of the refrigerant charge from a system? - ANS cooling
the recovery cylinder to lower its pressure.
your recovery/recycling device has R-22 in it and you need to recover a R-410A unit. what must
be done? - ANS remove the R-22 from the recovery unit and change the filter.
what is the primary water source for a water cooled recovery units condescending coil. -
ANS the local municipal water supply.
what steps should be taken before using a recovery unit to remove a charge? - ANS the oil
should be changed and the recovery cylinder evacuated.
what statement about recycling and recovery equipment is FALSE? - ANS purchase of
recovery or recycling equipment must be reported to the EPA.
2
Page
@COPYRIGHT SIRJOEL 2025/2026
