EPA Section 609 Exam Questions With Correct Answers

A refillable refrigerant cylinder must not be filled above ______ of its full capacity. - Answer 80% Ozone layer absorbs and scatters ________ from the sun - Answer 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. - Answer $10,000 Since ________, it is no longer legal for CFCs to be manufactured or imported into the United States - Answer Jan 1, 1996 R-134a is a chlorine-free refrigerant - Answer True MVAC systems being disposed must be evacuated to _____ of mercury before being scrapped - Answer 4 inches Ozone at ground level and at Stratosphere is a harmful pollutant - Answer False Each chlorine ion can able to destroy ______ ozone molecules - Answer 100,000 Since _____, it is illegal to vent substitutes for CFC and HCFC refrigerants - Answer Nov 15, 1995 For determining the Ozone Depletion Potential ________ having been assigned a factor of 1 - Answer CFC-11 Ester-based synthetic oils can be mixed with other oils - Answer False Lifetime of CFCs is believed to range from _____ years - Answer 20-100 CFCs are highly reactive in _____ of atmosphere - Answer lower levels At high temperaturesCFC-12 can decompose to form _______ - Answer 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. - Answer 1990 Non-condensables in a refrigeration system result in a _______ discharge pressure - Answer 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. - Answer 15 Refrigerants are lighter than the air: - Answer False Over the road refrigeration units and R-22 (HCFC) air conditioning, such as that found in buses, also requires Section ______ certification - Answer 608 If a technician is already trained and certified to handle CFC-12, he has to be re-certified to handle HFC-134a - Answer False Every refrigerant cylinder need not be protected by some type of pressure relief device: - Answer False Ozone depletion Increase global warming - Answer True Stratosphere layer consists of about _____ of the available Ozone: - Answer 90% Ozone molecule consists of ______ atoms of oxygen - Answer Three The thermodynamic properties of HFC-134a are similar to CFC-12 - Answer True