EPA 609 EVALUATION 2026 EXAM QUESTIONS AND
ANSWERS GRADED A+
✔✔Which of the following refrigerants has high ozone-depletion potential: - ✔✔CFCs
✔✔R-152a is a chemical compound composed of which of the following: (Multiple
Answer Question) - ✔✔Carbon, Hydrogen, Fluorine
✔✔R-134a refrigerant does pose a cancer or birth defects hazard - ✔✔False
✔✔External Recovery Tanks must be evacuated to ______ of mercury before being put
into service - ✔✔27 inches
✔✔Disposable Refrigerant Tanks, under _______ must be evacuated before being
scrapped - ✔✔20 pounds
✔✔HFC-134a, is the refrigerant that replaced _______ in automotive air conditioning
systems - ✔✔R-12
✔✔Which of the following has the Ozone Depletion Potential (ODP) value of 1 -
✔✔CFC-11
✔✔CFCs manufacture was discontinued as of _______ - ✔✔January 1, 1996
✔✔______ of stratospheric chlorine comes from ozone-depleting substances - ✔✔82%
✔✔MVAC systems need not be evacuated to a vacuum before servicing - ✔✔False
✔✔Supplies of CFC refrigerant for equipment servicing can ONLY come from which of
the following: - ✔✔recovery, reclamation, and recycling
✔✔Which of the following in refrigerant makes them chemically less stable once they
enter the atmosphere - ✔✔Hydrogen
✔✔CFCs deplete stratospheric ozone and that a "hole" had developed in the ozone
layer over ______ - ✔✔Antarctica
✔✔______ has recently been approved for use in automobile applications as an
alternative to R-134a - ✔✔R152a
✔✔HFCs and HCFCs decompose when released in the lower atmosphere: - ✔✔True
, ✔✔The Global Warming Potential is reported relative to _______: - ✔✔carbon dioxide
✔✔EPA is authorized to assess fines of up to ______ per day per violation for any
violation of the act - ✔✔$37,500
✔✔A floor tax also applies to anyone holding ______ or more of the regulated CFCs -
✔✔400 lb.
✔✔R-12 is a ______ type of refrigerant - ✔✔CFC
✔✔HFCs contributes to the global warming: - ✔✔True
✔✔CFC refrigerants are chemically highly unstable: - ✔✔False
✔✔Ultraviolet radiation breaks down the CFCs and frees the chlorine ion - ✔✔True
✔✔At present there is no restriction on the sale of HFC-134a - ✔✔True
✔✔Hydrofluorocarbons (HFCs) contributes to which of the following: - ✔✔global
warming
✔✔The thermodynamic properties of HFC-134a are similar to CFC-12 - ✔✔True
✔✔The "ozone layer" consists of ozone in which part of the atmosphere: -
✔✔stratosphere
✔✔As per the CAA, all records related to entities of MVAC system services must be
maintained for ________ years - ✔✔3
✔✔_______ has replaced CFC-12 in all automotive applications - ✔✔HFC-134a
✔✔The primary cause of over-pressurization of refrigeration cylinder is due to
overheating - ✔✔True
✔✔The color code for R-12 disposable refrigerant cylinders is ______ - ✔✔white
✔✔Since _______, it has been mandatory to recycle HFC-134a as well as any other
automotive refrigerant before returning to that MVAC or sold: - ✔✔Jan 29, 1998
✔✔Halons were completely phased out by 1994 - ✔✔True
✔✔R-134a is flammable at ambient temperatures and atmospheric pressures -
✔✔False
ANSWERS GRADED A+
✔✔Which of the following refrigerants has high ozone-depletion potential: - ✔✔CFCs
✔✔R-152a is a chemical compound composed of which of the following: (Multiple
Answer Question) - ✔✔Carbon, Hydrogen, Fluorine
✔✔R-134a refrigerant does pose a cancer or birth defects hazard - ✔✔False
✔✔External Recovery Tanks must be evacuated to ______ of mercury before being put
into service - ✔✔27 inches
✔✔Disposable Refrigerant Tanks, under _______ must be evacuated before being
scrapped - ✔✔20 pounds
✔✔HFC-134a, is the refrigerant that replaced _______ in automotive air conditioning
systems - ✔✔R-12
✔✔Which of the following has the Ozone Depletion Potential (ODP) value of 1 -
✔✔CFC-11
✔✔CFCs manufacture was discontinued as of _______ - ✔✔January 1, 1996
✔✔______ of stratospheric chlorine comes from ozone-depleting substances - ✔✔82%
✔✔MVAC systems need not be evacuated to a vacuum before servicing - ✔✔False
✔✔Supplies of CFC refrigerant for equipment servicing can ONLY come from which of
the following: - ✔✔recovery, reclamation, and recycling
✔✔Which of the following in refrigerant makes them chemically less stable once they
enter the atmosphere - ✔✔Hydrogen
✔✔CFCs deplete stratospheric ozone and that a "hole" had developed in the ozone
layer over ______ - ✔✔Antarctica
✔✔______ has recently been approved for use in automobile applications as an
alternative to R-134a - ✔✔R152a
✔✔HFCs and HCFCs decompose when released in the lower atmosphere: - ✔✔True
, ✔✔The Global Warming Potential is reported relative to _______: - ✔✔carbon dioxide
✔✔EPA is authorized to assess fines of up to ______ per day per violation for any
violation of the act - ✔✔$37,500
✔✔A floor tax also applies to anyone holding ______ or more of the regulated CFCs -
✔✔400 lb.
✔✔R-12 is a ______ type of refrigerant - ✔✔CFC
✔✔HFCs contributes to the global warming: - ✔✔True
✔✔CFC refrigerants are chemically highly unstable: - ✔✔False
✔✔Ultraviolet radiation breaks down the CFCs and frees the chlorine ion - ✔✔True
✔✔At present there is no restriction on the sale of HFC-134a - ✔✔True
✔✔Hydrofluorocarbons (HFCs) contributes to which of the following: - ✔✔global
warming
✔✔The thermodynamic properties of HFC-134a are similar to CFC-12 - ✔✔True
✔✔The "ozone layer" consists of ozone in which part of the atmosphere: -
✔✔stratosphere
✔✔As per the CAA, all records related to entities of MVAC system services must be
maintained for ________ years - ✔✔3
✔✔_______ has replaced CFC-12 in all automotive applications - ✔✔HFC-134a
✔✔The primary cause of over-pressurization of refrigeration cylinder is due to
overheating - ✔✔True
✔✔The color code for R-12 disposable refrigerant cylinders is ______ - ✔✔white
✔✔Since _______, it has been mandatory to recycle HFC-134a as well as any other
automotive refrigerant before returning to that MVAC or sold: - ✔✔Jan 29, 1998
✔✔Halons were completely phased out by 1994 - ✔✔True
✔✔R-134a is flammable at ambient temperatures and atmospheric pressures -
✔✔False
