EPA Core Questions with correct Answers
2025/2026 A+ Graded 100% Verified.
HFO refrigerants are miscible in ________ lubricants. - ANS- b.) POE lubricants
EPA regulations only allow recovered or recycled refrigerant to be ________. - ANS- a.)
charged into the same or another appliance owned by the same person
How does the GWP of R-410A compare to carbon dioxide? - ANS- d.) The GWP of 410-A
is thousands of times greater
State and local governments _______. - ANS- c.) can make laws that are stricter
requirements than the federal regulations
_________ can be recovered into the same cylinder. - ANS- d.) only 1 refrigerant
EPA regulations require appliances to have ________. - ANS- a.) a service aperture or
process stub
If corrosion is discovered in the body of a relief valve, the valve must be ________. -
ANS- d.) replaced
Never heat a recovery tank with an open flame because ________. - ANS- b.) the high
temperature can cause the pressure relief valve to vent, the tank to explode, or the
refrigerant to decompose
Always ______ when operating refrigerant recovery or recycling equipment. - ANS- d.) all
of the above
Refrigerant cylinders should _________. - ANS- d.) all of the above
The production and import of new R-22 in the U.S. to service existing systems is banned
beginning in ________. - ANS- b.) 2020
Over-evacuation of a system can ________. - ANS- d.) never occur; you can never pull
too much air or impurities from a system
The ________ program identifies alternative refrigerants for use. - ANS- a.) SNAP
, When a system isn operating, refrigerant leaves the condenser as a ________. - ANS- c.)
high-pressure liquid
What is a violation of the Clean Air Act or EPA's regulations? - ANS- d.) all of the above
Which refrigerant depletes the ozone layer? - ANS- c.) R-22
During servicing of any refrigerant system, the refrigerant must be ________. - ANS- b.)
recovered
Technicians who violate Clean Air Act provisions ________. - ANS- a.) can lose their
certification
Before recycling or discarding, a disposable cylinder should be ________. - ANS- a.)
emptied tom 0 psig and then rendered useless by puncturing or breaking off the valve
A "self-contained" recovery device _________. - ANS- b.) removes refrigerant with the
assistance of components in the appliance
A refrigerant label is placed on the ________. - ANS- c.) cylinder to identify the
refrigerant
_________ damages stratospheric ozone. - ANS- c.) HCFCs
Which refrigerant contains chlorine? - ANS- a.) R-12
When shipping refrigerant cylinders, they should be stored ________. - ANS- b.) upright
Which refrigerant can fractionate? - ANS- a.) R-407C
What does NOT require Section 608 certification? - ANS- b.) rewiring a condenser fan
Which refrigerant is an HFC? - ANS- a.) R-134a
Recovery cylinders are labeled to indicate the refrigerant inside to _________. - ANS- d.)
both A and B
What is being done in the U.S. to stop damage to the stratospheric ozone layer? - ANS-
b.) eliminating the use of CFCs and HCFCs refrigerants
A refrigerant cylinder that has a gray body and a yellow top is designed to hold ________.
- ANS- d.) recovered refrigerant
2025/2026 A+ Graded 100% Verified.
HFO refrigerants are miscible in ________ lubricants. - ANS- b.) POE lubricants
EPA regulations only allow recovered or recycled refrigerant to be ________. - ANS- a.)
charged into the same or another appliance owned by the same person
How does the GWP of R-410A compare to carbon dioxide? - ANS- d.) The GWP of 410-A
is thousands of times greater
State and local governments _______. - ANS- c.) can make laws that are stricter
requirements than the federal regulations
_________ can be recovered into the same cylinder. - ANS- d.) only 1 refrigerant
EPA regulations require appliances to have ________. - ANS- a.) a service aperture or
process stub
If corrosion is discovered in the body of a relief valve, the valve must be ________. -
ANS- d.) replaced
Never heat a recovery tank with an open flame because ________. - ANS- b.) the high
temperature can cause the pressure relief valve to vent, the tank to explode, or the
refrigerant to decompose
Always ______ when operating refrigerant recovery or recycling equipment. - ANS- d.) all
of the above
Refrigerant cylinders should _________. - ANS- d.) all of the above
The production and import of new R-22 in the U.S. to service existing systems is banned
beginning in ________. - ANS- b.) 2020
Over-evacuation of a system can ________. - ANS- d.) never occur; you can never pull
too much air or impurities from a system
The ________ program identifies alternative refrigerants for use. - ANS- a.) SNAP
, When a system isn operating, refrigerant leaves the condenser as a ________. - ANS- c.)
high-pressure liquid
What is a violation of the Clean Air Act or EPA's regulations? - ANS- d.) all of the above
Which refrigerant depletes the ozone layer? - ANS- c.) R-22
During servicing of any refrigerant system, the refrigerant must be ________. - ANS- b.)
recovered
Technicians who violate Clean Air Act provisions ________. - ANS- a.) can lose their
certification
Before recycling or discarding, a disposable cylinder should be ________. - ANS- a.)
emptied tom 0 psig and then rendered useless by puncturing or breaking off the valve
A "self-contained" recovery device _________. - ANS- b.) removes refrigerant with the
assistance of components in the appliance
A refrigerant label is placed on the ________. - ANS- c.) cylinder to identify the
refrigerant
_________ damages stratospheric ozone. - ANS- c.) HCFCs
Which refrigerant contains chlorine? - ANS- a.) R-12
When shipping refrigerant cylinders, they should be stored ________. - ANS- b.) upright
Which refrigerant can fractionate? - ANS- a.) R-407C
What does NOT require Section 608 certification? - ANS- b.) rewiring a condenser fan
Which refrigerant is an HFC? - ANS- a.) R-134a
Recovery cylinders are labeled to indicate the refrigerant inside to _________. - ANS- d.)
both A and B
What is being done in the U.S. to stop damage to the stratospheric ozone layer? - ANS-
b.) eliminating the use of CFCs and HCFCs refrigerants
A refrigerant cylinder that has a gray body and a yellow top is designed to hold ________.
- ANS- d.) recovered refrigerant
