FCC HVAC Exam UPDATED ACTUAL
QUESTIONS AND CORRECT ANSWERS
what is the name of EPA's program that identifies refrigerants with lower overall risks to
human health and the environment? - CORRECT ANSWER the Significant New
Alternatives Policy(SNAP) Program.
what is a lawful use of HCFC-22? - CORRECT ANSWER Charging any new system
designed for R-407c.
how does cooling occur in a direct expansion vapor compression refrigeration system? -
CORRECT ANSWER 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? - CORRECT ANSWER recycling
what should the technician review when working with any solvents chemicals or refrigerants?
- CORRECT ANSWER safety data sheets (SDS).
in general which elastomers for use in seals and gaskets are NOT compatible with HFO
refrigerants? - CORRECT ANSWER none
new household refrigerators may NOT be factory charged with? - CORRECT
ANSWER R-600a
a standard vacuum pump designed for evacuation and dehydration can... - CORRECT
ANSWER 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. - CORRECT ANSWER when the compressor does not run.
, after installation of a field piped split system the unit should first be pressurized with... -
CORRECT ANSWER 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? - CORRECT ANSWER industrial process
refrigeration (IPR)
when recovery is first started at what phase is the refrigerant removed to save recovery time?
- CORRECT ANSWER the liquid phase
how can you speed up the removal of the refrigerant charge from a system? - CORRECT
ANSWER 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? - CORRECT ANSWER 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. -
CORRECT ANSWER the local municipal water supply.
what steps should be taken before using a recovery unit to remove a charge? - CORRECT
ANSWER the oil should be changed and the recovery cylinder evacuated.
what statement about recycling and recovery equipment is FALSE? - CORRECT
ANSWER purchase of recovery or recycling equipment must be reported to the EPA.
what repair will always be seen as a major repair under the EPA's regulations? - CORRECT
ANSWER replacement of an evaporator coil.
when is it against EPA regulations to use a system dependent recovery devices. - CORRECT
ANSWER When the compressor is operational.
QUESTIONS AND CORRECT ANSWERS
what is the name of EPA's program that identifies refrigerants with lower overall risks to
human health and the environment? - CORRECT ANSWER the Significant New
Alternatives Policy(SNAP) Program.
what is a lawful use of HCFC-22? - CORRECT ANSWER Charging any new system
designed for R-407c.
how does cooling occur in a direct expansion vapor compression refrigeration system? -
CORRECT ANSWER 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? - CORRECT ANSWER recycling
what should the technician review when working with any solvents chemicals or refrigerants?
- CORRECT ANSWER safety data sheets (SDS).
in general which elastomers for use in seals and gaskets are NOT compatible with HFO
refrigerants? - CORRECT ANSWER none
new household refrigerators may NOT be factory charged with? - CORRECT
ANSWER R-600a
a standard vacuum pump designed for evacuation and dehydration can... - CORRECT
ANSWER 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. - CORRECT ANSWER when the compressor does not run.
, after installation of a field piped split system the unit should first be pressurized with... -
CORRECT ANSWER 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? - CORRECT ANSWER industrial process
refrigeration (IPR)
when recovery is first started at what phase is the refrigerant removed to save recovery time?
- CORRECT ANSWER the liquid phase
how can you speed up the removal of the refrigerant charge from a system? - CORRECT
ANSWER 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? - CORRECT ANSWER 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. -
CORRECT ANSWER the local municipal water supply.
what steps should be taken before using a recovery unit to remove a charge? - CORRECT
ANSWER the oil should be changed and the recovery cylinder evacuated.
what statement about recycling and recovery equipment is FALSE? - CORRECT
ANSWER purchase of recovery or recycling equipment must be reported to the EPA.
what repair will always be seen as a major repair under the EPA's regulations? - CORRECT
ANSWER replacement of an evaporator coil.
when is it against EPA regulations to use a system dependent recovery devices. - CORRECT
ANSWER When the compressor is operational.
