EPA SECTION 609 EXAM WITH VERIFIED LATEST QUESTIONS AND CORRECT ANSWERS GRADED A+

EPA SECTION 609 EXAM WITH VERIFIED LATEST QUESTIONS AND CORRECT ANSWERS GRADED A+ A refillable refrigerant cylinder must not be filled above ______ of its full capacity. - ANS-80% Ozone layer absorbs and scatters ________ from the sun - ANS-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. - ANS-$10,000 Since ________, it is no longer legal for CFCs to be manufactured or imported into the United States - ANS-Jan 1, 1996 R-134a is a chlorine-free refrigerant - ANS-True MVAC systems being disposed must be evacuated to _____ of mercury before being scrapped - ANS-4 inches Ozone at ground level and at Stratosphere is a harmful pollutant - ANS-False Each chlorine ion can able to destroy ______ ozone molecules - ANS-100,000 Since _____, it is illegal to vent substitutes for CFC and HCFC refrigerants - ANS-Nov 15, 1995 For determining the Ozone Depletion Potential ________ having been assigned a factor of 1 - ANS-CFC11 Ester-based synthetic oils can be mixed with other oils - ANS-False Lifetime of CFCs is believed to range from _____ years - ANS-20-100 CFCs are highly reactive in _____ of atmosphere - ANS-lower levels At high temperaturesCFC-12 can decompose to form _______ - ANS-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. - ANS-1990 Non-condensables in a refrigeration system result in a _______ discharge pressure - ANS-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. - ANS-15 Refrigerants are lighter than the air: - ANS-False Over the road refrigeration units and R-22 (HCFC) air conditioning, such as that found in buses, also requires Section ______ certification - ANS-608 If a technician is already trained and certified to handle CFC-12, he has to be re-certified to handle HFC134a - ANS-False Every refrigerant cylinder need not be protected by some type of pressure relief device: - ANS-False Ozone depletion Increase global warming - ANS-True Stratosphere layer consists of about _____ of the available Ozone: - ANS-90% Ozone molecule consists of ______ atoms of oxygen - ANS-Three The thermodynamic properties of HFC-134a are similar to CFC-12 - ANS-True Montreal Protocol is signed in ______ by 23 counties including USA - ANS-Sep, 1987 Halons were completely phased out by 1994 - ANS-True As per the CAA, all records related to entities of MVAC system services must be maintained for ________ years - ANS-Three R-134a is flammable at ambient temperatures and atmospheric pressures - ANS-False Since _______, it has been mandatory to recycle HFC-134a as well as any other automotive refrigerant before returning to that MVAC or sold: - ANS-Jan 29, 1998 The color code for R-12 disposable refrigerant cylinders is ______ - ANS-White The "ozone layer" consists of ozone in which part of the atmosphere: - ANS-Stratosphere Which of the following will not react with ozone gas: - ANS-Fluorine