EPA Certification Exam All Answers Correct
1. Which types of refrigerants are recognized for containing significant amounts of chlorine? - CFCs
2. When did it become illegal to intentionally release Class 1 and Class 2 refrigerants into the air? - As of July 1, 1992
3. Which refrigerants ar...
1. Which types of refrigerants are recognized for containing significant amounts of chlorine?
- ✅ CFCs
2. When did it become illegal to intentionally release Class 1 and Class 2 refrigerants into the air?
- ✅ As of July 1, 1992
3. Which refrigerants are noted for having minimal ozone depletion potential?
- ✅ HFCs
4. What molecule found in CFCs and HCFCs contributes to the destruction of the ozone layer in the
stratosphere?
- ✅ Chlorine
5. What is the composition of stratospheric ozone?
- ✅ It consists of three oxygen atoms.
6. Stratospheric ozone depletion is classified as what type of issue?
- ✅ A global problem.
7. What gas in the stratosphere serves to protect us from ultraviolet (UV) radiation?
- ✅ Ozone
8. Identify a refrigerant that is classified as a CFC.
- ✅ R-12
9. Which refrigerants are categorized as HCFCs?
, - ✅ R-123 and R-22
10. What refrigerant is identified as an HFC?
- ✅ R-134a
11. Which refrigerant is chlorine-free?
- ✅ R-134a
12. In the stratosphere, what molecule indicates that ozone depletion is occurring?
- ✅ Chlorine monoxide
13. What actions would infringe upon the Clean Air Act (CAA)?
- ✅ Knowingly releasing Class 1 and Class 2 substances
✅ Failing to maintain or falsifying required documentation
✅ Not adhering to the necessary evacuation levels before servicing systems.
14. For what purpose are one-time (disposable) refrigerant cylinders utilized?
- ✅ For storing virgin refrigerant.
15. What is the general guidance for the maximum allowable liquid capacity when refilling approved
refrigerant cylinders?
- ✅ 80% liquid capacity.
16. What factors determine the duration required for evacuating and dehydrating a refrigerant system
before charging?
- ✅ The total volume of the system
✅ The amount of non-condensibles (moisture) present
✅ Ambient temperature conditions.
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