EPA 609 Questions and Answers Guaranteed Success 2023/2024, Exams of Refrigeration and Air Conditioning

Download EPA 609 Questions and Answers Guaranteed Success 2023/2024 and more Exams Refrigeration and Air Conditioning in PDF only on Docsity! EPA 609 Questions and Answers Guaranteed success 2023/2024 Lifetime of CFCs is believed to range from _____ years? 2 to 100 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 Since ________, it is no longer legal for CFCs to be manufactured or imported into the United States? January 1, 1996 Since _____, it is illegal to vent substitutes for CFC and HCFC refrigerants? November 15, 1995 Ozone at ground level ans at Stratosphere is a harmful pollutant? False A refillable refrigerant cylinder must not be filled above ______ of its full capacity? 80% Each chlorine ion can able to destroy ______ ozone mole? 100,000 R-134a is a chlorine-free refrigerant? True MVAC systems being disposed must be evacuated to _____ of mercury before being scrapped? 4 inches Ozone layer absorbs and scatters ________ from the sun? 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? 10,000 Every refrigerant cylinder need not be protected by some type of pressure relief device? False Ozone molecule consists of ______ atoms of oxygen? Three CFCs are highly reactive in _____ of atmosphere? Lower level Over the road refrigeration units and R-22 (HCFC) air conditioning, such as that found in buses, also requires Section ______ certification? 608 Stratosphere layer consists of about _____ of the available Ozone? 90% 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? 15 Ozone depletion Increase global warming? True Non-condensables in a refrigeration system result in a _______ discharge pressure? Higher At high temperaturesCFC-12 can decompose to form _______? Both options are correct: hydrofluoric acid and hydrochloric acid If a technician is already trained and certified to handle CFC-12, he has to be re-certified to handle HFC-134a? False The Clean Air Act (CAA) of ______ directs EPA to establish requirements to prevent the release of ozone depleting substances? 1990 Refrigerants are lighter than the air? 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 ______ of stratospheric chlorine comes from ozone-depleting substances? 82% Which of the following refrigerants has high ozone-depletion potential? CFCs Supplies of CFC refrigerant for equipment servicing can ONLY come from which of the following? All of the above recovery, recycle, reclaimation Which of the following has the Ozone Depletion Potential (ODP) value of 1? CFC-11