UPDATED EPA 608 QUIZLET 2026
the state of the refrigerant entering the metering device is? - Correct answer-A
subcooled high pressure liquid.
what type of refrigerant is used in VERY high-pressure appliances? - Correct
answer-R-503
what type of refrigerant is used in MEDIUM pressure appliances? - Correct
answer-R-500
what type of refrigerant is used in HIGH pressure appliances? - Correct answer-R-
410A and R-22
what device is located at the END of the liquid line? - Correct answer-The
expansion device.
what type of refrigerants are the LEAST harmful to the ozone layer? - Correct
answer-HFC refrigerants.
How much money does the EPA offer to individuals who report information about
others who vent refrigerants into the atmosphere? - Correct answer-$10,000.
©C0PYRIGHT 2025, ALL RIGHTS RESERVED 1
,which class of refrigerants does R-22 fall into? - Correct answer-The HCFC class.
(hydrochloroflurocarbons)
which gas should be used when checking for leaks in various systems? - Correct
answer-Nitrogen.
which term describes the process of changing a refrigerant from a liquid to a gas
using HEAT? - Correct answer-Latent heat.
refrigerants in the SUCTION line are in what phase and state? - Correct answer-
Cold vapor.
how many miles above the Earth's surface does the ozone layer in the stratosphere
extend? - Correct answer-31 miles.
what year was the Montreal Protocol put in place? - Correct answer-1989.
refrigerant recovery equipment should be checked for (blank) on a daily basis? -
Correct answer-Refrigerant leaks and oil levels.
should recovery machines be used on equipment that contains hydrogen? - Correct
answer-NO.
which purity test is used to determine the type of refrigerant? - Correct answer-ARI
700.
©C0PYRIGHT 2025, ALL RIGHTS RESERVED 2
, what type of unit only requires ONE service connection? - Correct answer-self-
contained recovery units.
air will cause (blank) discharge pressures in a refrigeration system. - Correct
answer-Higher.
a strong odor is around during the recovery process. what is most likely the cause
of this? - Correct answer-A compressor burnout.
what is the best way (position) to transport refrigeration cylinders? - Correct
answer-Upright.
you can only accurately read refrigerant pressure with a stable (blank)? - Correct
answer-Temperature.
an explosion can occur if (blank) is vented in an enclosed environment? - Correct
answer-Hydrogen.
can refrigerants be mixed in a recovery tank? - Correct answer-NO.
what is the state of refrigerant leaving the liquid receiver? - Correct answer-High
pressure liquid.
what is the minimum microns a vacuum pump must pull when evacuating a
system? - Correct answer-500 microns.
©C0PYRIGHT 2025, ALL RIGHTS RESERVED 3
the state of the refrigerant entering the metering device is? - Correct answer-A
subcooled high pressure liquid.
what type of refrigerant is used in VERY high-pressure appliances? - Correct
answer-R-503
what type of refrigerant is used in MEDIUM pressure appliances? - Correct
answer-R-500
what type of refrigerant is used in HIGH pressure appliances? - Correct answer-R-
410A and R-22
what device is located at the END of the liquid line? - Correct answer-The
expansion device.
what type of refrigerants are the LEAST harmful to the ozone layer? - Correct
answer-HFC refrigerants.
How much money does the EPA offer to individuals who report information about
others who vent refrigerants into the atmosphere? - Correct answer-$10,000.
©C0PYRIGHT 2025, ALL RIGHTS RESERVED 1
,which class of refrigerants does R-22 fall into? - Correct answer-The HCFC class.
(hydrochloroflurocarbons)
which gas should be used when checking for leaks in various systems? - Correct
answer-Nitrogen.
which term describes the process of changing a refrigerant from a liquid to a gas
using HEAT? - Correct answer-Latent heat.
refrigerants in the SUCTION line are in what phase and state? - Correct answer-
Cold vapor.
how many miles above the Earth's surface does the ozone layer in the stratosphere
extend? - Correct answer-31 miles.
what year was the Montreal Protocol put in place? - Correct answer-1989.
refrigerant recovery equipment should be checked for (blank) on a daily basis? -
Correct answer-Refrigerant leaks and oil levels.
should recovery machines be used on equipment that contains hydrogen? - Correct
answer-NO.
which purity test is used to determine the type of refrigerant? - Correct answer-ARI
700.
©C0PYRIGHT 2025, ALL RIGHTS RESERVED 2
, what type of unit only requires ONE service connection? - Correct answer-self-
contained recovery units.
air will cause (blank) discharge pressures in a refrigeration system. - Correct
answer-Higher.
a strong odor is around during the recovery process. what is most likely the cause
of this? - Correct answer-A compressor burnout.
what is the best way (position) to transport refrigeration cylinders? - Correct
answer-Upright.
you can only accurately read refrigerant pressure with a stable (blank)? - Correct
answer-Temperature.
an explosion can occur if (blank) is vented in an enclosed environment? - Correct
answer-Hydrogen.
can refrigerants be mixed in a recovery tank? - Correct answer-NO.
what is the state of refrigerant leaving the liquid receiver? - Correct answer-High
pressure liquid.
what is the minimum microns a vacuum pump must pull when evacuating a
system? - Correct answer-500 microns.
©C0PYRIGHT 2025, ALL RIGHTS RESERVED 3
