EPA 609 Practice Verified Guide - R-134a is a chlorine-free refrigerant. ️ True - Ozone layer absorbs and scatters ________ from the sun. ️ Ultraviolet light - For determining the Ozone Depletion Potential, ________ has been assigned a factor of 1. ️ CFC-11 - A refillable refrigerant cylinder...
- Ozone layer absorbs and scatters ________ from the sun. ✔️ Ultraviolet light
- For determining the Ozone Depletion Potential, ________ has been assigned a factor of 1. ✔️ CFC-11
- A refillable refrigerant cylinder must not be filled above ______ of its full capacity. ✔️ 80%
- Ozone at ground level and in the Stratosphere is a harmful pollutant. ✔️ False
- Each chlorine ion can destroy ______ ozone molecules. ✔️ 100,000
- Lifetime of CFCs is believed to range from _____ years. ✔️ 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. ✔️ $10,000
- Ester-based synthetic oils can be mixed with other oils. ✔️ False
- Since _____, it is illegal to vent substitutes for CFC and HCFC refrigerants. ✔️ Nov 15, 1995
- MVAC systems being disposed of must be evacuated to _____ of mercury before being scrapped. ✔️ 4
inches
- Since ________, it is no longer legal for CFCs to be manufactured or imported into the United States.
✔️ Jan 1, 1996
, - The Clean Air Act (CAA) of ______ directs the EPA to establish requirements to prevent the release of
ozone-depleting substances. ✔️ 1990
- At high temperatures, CFC-12 can decompose to form _______. ✔️ Hydrochloric and hydrofluoric acid
- An ozone molecule consists of ______ atoms of oxygen. ✔️ Three
- CFCs are highly reactive in _____ of the atmosphere. ✔️ Lower
- Non-condensables in a refrigeration system result in a ______ discharge pressure. ✔️ 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. ✔️ 15
- Over-the-road refrigeration units and R-22 (HCFC) air conditioning, such as that found in buses, also
requires Section ______ certification. ✔️ 608
- Ozone depletion increases global warming. ✔️ True
- Refrigerants are lighter than air. ✔️ False
- The stratosphere layer consists of about _____ of the available ozone. ✔️ 90%
- Every refrigerant cylinder need not be protected by some type of pressure relief device. ✔️ False
- If a technician is already trained and certified to handle CFC-12, he has to be re-certified to handle HFC-
134a. ✔️ False
- Which of the following refrigerants has high ozone-depletion potential? ✔️ CFCs
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