EPA 609 Questions and Answers Already Passed 2024/2025 A refillable refrigerant cylinder must not be filled above ______ of its full capacity. - Correct Answers 80% Ozone layer absorbs and scatters ________ from the sun - Correct Answers Ultraviolet light 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 Answers $10,000 Since ________, it is no longer legal for CFCs to be manufactured or imported into the United States - Correct Answers Jan 1, 1996 R-134a is a chlorine-free refrigerant - Correct Answers True MVAC systems being disposed must be evacuated to _____ of mercury before being scrapped - Correct Answers 4 inches Ozone at ground level and at Stratosphere is a harmful pollutant - Correct Answers False Each chlorine ion can able to destroy ______ ozone molecules - Correct Answers 100,000 Since _____, it is illegal to vent substitutes for CFC and HCFC refrigerants - Correct Answers Nov 15, 1995 For determining the Ozone Depletion Potential ________ having been assigned a factor of 1 - Correct Answers CFC-11 Ester-based synthetic oils can be mixed with other oils - Correct Answers False Lifetime of CFCs is believed to range from _____ years - Correct Answers 20-100 CFCs are highly reactive in _____ of atmosphere - Correct Answers lower levels 1 / 2
At high temperaturesCFC-12 can decompose to form _______ - Correct Answers hydrofluoric acid and/or hydrochloric acid The Clean Air Act (CAA) of ______ directs EPA to establish requirements to prevent the release of ozone depleting substances. - Correct Answers 1990 Non-condensables in a refrigeration system result in a _______ discharge pressure - Correct Answers Higher Moisture level in Recycled R-12 (CFC-12) that has been directly removed from, and intended to be returned to, a mobile air-conditioning system cannot exceed _______ PPM by weight. - Correct Answers 15
Refrigerants are lighter than the air: - Correct Answers False
Over the road refrigeration units and R-22 (HCFC) air conditioning, such as that found in buses, also requires Section ______ certification - Correct Answers 608 If a technician is already trained and certified to handle CFC-12, he has to be re-certified to handle HFC-134a - Correct Answers False Every refrigerant cylinder need not be protected by some type of pressure relief device: - Correct Answers False Ozone depletion Increase global warming - Correct Answers True Stratosphere layer consists of about _____ of the available Ozone: - Correct Answers 90% Ozone molecule consists of ______ atoms of oxygen - Correct Answers Three The thermodynamic properties of HFC-134a are similar to CFC-12 - Correct Answers True Montreal Protocol is signed in ______ by 23 counties including USA - Correct Answers Sep, 1987
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