EPA 609 Practice Questions with Complete Solutions 100% Verified Correct Answers R-134a is a chlorine-free refrigerant - Correct Answers True Ozone layer absorbs and scatters ________ from the sun - Correct Answers ultraviolet light For determining the Ozone Depletion Potential ________ having been assigned a factor of 1 - Correct Answers CFC-11 A refillable refrigerant cylinder must not be filled above ______ of its full capacity. - Correct Answers 80% 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 Lifetime of CFCs is believed to range from _____ years - Correct Answers 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 Answers $10,000 Ester-based synthetic oils can be mixed with other oils - Correct Answers False Since _____, it is illegal to vent substitutes for CFC and HCFC refrigerants - Correct Answers Nov 15, 1995 MVAC systems being disposed must be evacuated to _____ of mercury before being scrapped - Correct Answers 4 inches Since ________, it is no longer legal for CFCs to be manufactured or imported into the United States - Correct Answers Jan 1, 1996 1 / 2
The Clean Air Act (CAA) of ______ directs EPA to establish requirements to prevent the release of ozone depleting substances. - Correct Answers 1990 At high temperatures, CFC-12 can decompose to form _______ - Correct Answers hydrochloric and hydrofluoric acid Ozone molecule consists of ______ atoms of oxygen - Correct Answers three CFCs are highly reactive in _____ of atmosphere - Correct Answers lower 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 Over the road refrigeration units and R-22 (HCFC) air conditioning, such as that found in buses, also requires Section ______ certification - Correct Answers 608 Ozone depletion increases global warming - Correct Answers True
Refrigerants are lighter than the air: - Correct Answers False
Stratosphere layer consists of about _____ of the available Ozone: - Correct Answers 90% Every refrigerant cylinder need not be protected by some type of pressure relief device: - Correct Answers False 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 Which of the following refrigerants has high ozone-depletion potential: - Correct Answers CFCs
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