EPA 609 CORE REVIEW 2026 TIPS QUESTIONS AND
ANSWERS SURE A+
✔✔Since ________, it is no longer legal for CFCs to be manufactured or imported into
the United States - ✔✔Jan 1, 1996
✔✔R-134a is a chlorine-free refrigerant - ✔✔True
✔✔MVAC systems being disposed must be evacuated to _____ of mercury before
being scrapped - ✔✔4 inches
✔✔Ozone at ground level and at Stratosphere is a harmful pollutant - ✔✔False
✔✔Each chlorine ion can able to destroy ______ ozone molecules - ✔✔100,000
✔✔Since _____, it is illegal to vent substitutes for CFC and HCFC refrigerants - ✔✔Nov
15, 1995
✔✔For determining the Ozone Depletion Potential ________ having been assigned a
factor of 1 - ✔✔CFC-11
✔✔Ester-based synthetic oils can be mixed with other oils - ✔✔False
ANSWERS SURE A+
✔✔Since ________, it is no longer legal for CFCs to be manufactured or imported into
the United States - ✔✔Jan 1, 1996
✔✔R-134a is a chlorine-free refrigerant - ✔✔True
✔✔MVAC systems being disposed must be evacuated to _____ of mercury before
being scrapped - ✔✔4 inches
✔✔Ozone at ground level and at Stratosphere is a harmful pollutant - ✔✔False
✔✔Each chlorine ion can able to destroy ______ ozone molecules - ✔✔100,000
✔✔Since _____, it is illegal to vent substitutes for CFC and HCFC refrigerants - ✔✔Nov
15, 1995
✔✔For determining the Ozone Depletion Potential ________ having been assigned a
factor of 1 - ✔✔CFC-11
✔✔Ester-based synthetic oils can be mixed with other oils - ✔✔False
