EPA 609 Practice Exam Questions with 100% Correct Answers

R-134a is a chlorine-free refrigerant Correct Answer True Ozone layer absorbs and scatters ________ from the sun Correct Answer ultraviolet light For determining the Ozone Depletion Potential ________ having been assigned a factor of 1 Correct Answer CFC-11 A refillable refrigerant cylinder must not be filled above ______ of its full capacity. Correct Answer 80% Ozone at ground level and at Stratosphere is a harmful pollutant Correct Answer False Each chlorine ion can able to destroy ______ ozone molecules Correct Answer 100,000 Lifetime of CFCs is believed to range from _____ years Correct Answer 20-100 An award of up to ______ may be paid to a person supplying information that leads to a penalty against a technician who is intentionally venting. Correct Answer $10,000 Ester-based synthetic oils can be mixed with other oils Correct Answer False Since _____, it is illegal to vent substitutes for CFC and HCFC refrigerants Correct Answer Nov 15, 1995 MVAC systems being disposed must be evacuated to _____ of mercury before being scrapped Correct Answer 4 inches Since ________, it is no longer legal for CFCs to be manufactured or imported into the United States Correct Answer Jan 1, 1996 The Clean Air Act (CAA) of ______ directs EPA to establish requirements to prevent the release of ozone depleting substances. Correct Answer 1990 At high temperatures, CFC-12 can decompose to form _______ Correct Answer hydrochloric and hydrofluoric acid Ozone molecule consists of ______ atoms of oxygen Correct Answer three CFCs are highly reactive in _____ of atmosphere Correct Answer lower