EPA Universal questions and answers

EPA Universal questions and answers
Which refrigerants contain the most chlorine? - Correct Answer ✔✔ - CFC.
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R11,R12,R500.

As of what date did it become unlawful to intentionally release Class I and Class II refrigerants
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to the atmosphere? - Correct Answer ✔✔ - July 1 1992.
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Which refrigerants have the lowest ozone depletion potential (ODP)? - Correct Answer ✔✔
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- HFC.
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R134a.

The molecule found in CFC and HCFC refrigerants that destroys ozone in the stratosphere
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is: - Correct Answer ✔✔ - Chlorine.
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Stratospheric ozone consists of: - Correct Answer ✔✔ - Three oxygen atoms. by by by by by by by by by by by by




Stratospheric ozone depletion is a___problem: by by by by




a. Americanby




b. Global by




c. Local by




d. United Nations - Correct Answer ✔✔ - Global.
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The gas in the stratosphere that protects us from ultraviolet radiation is:
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a. Radon. by




b. Sulfur Dioxide.
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c. Carbon Dioxide.
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d. Ozone - Correct Answer ✔✔ - Ozone.
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Which refrigerant is a CFC? by by by by by




a. R-134a. by




b. R-123. by by




c. R-22. by by




d. R-12. - Correct Answer ✔✔ - R12.
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Which refrigerant is an HCFC? by by by by




a. R-134a. by




b. R-123. by




c. R-22. by




d. B and C above. - Correct Answer ✔✔ - D.
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R123.
R22.

, Which refrigerant is an HFC? by by by by by




a. R-134a.
by




b. R-123.
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c. R-22.
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d. R-12. - Correct Answer ✔✔ - R134a.
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Which refrigerant contains no chlorine? by by by by by




a. R-134a.
by




b. R-123.
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c. R-22.
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d. R-12. - Correct Answer ✔✔ - R134a.
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The molecule found in the stratosphere that indicates stratospheric ozone depletion is taking
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place is:
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a. Carbon dioxide.
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b. Carbon monoxide.
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c. Chlorine monoxide.
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d. Radon. - Correct Answer ✔✔ - A.
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Chlorine monoxide. by




The following actions would violate the Clean Air Act (CAA):
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a. Knowingly releasing Class I and Class II substances.
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b. Failing to keep or falsifying required records.
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c. Failing to reach the required evacuation levels before opening a system to.
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the atmosphere for service.
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d. All of the above. - Correct Answer ✔✔ - D.
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All of the above.
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One time (disposable) refrigerant cylinders are used for:
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a. Sending refrigerant for reclaim.
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b. Containing recovered refrigerant.
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c. Recycling refrigerant.
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d. Virgin refrigerant. - Correct Answer ✔✔ - D.
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Virgin refrigerant. by




The rule of thumb for refilling approved cylinders is a maximum of [ ] percent liquid?
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a. 60%.
by




b. 70%.
by




c. 80%.
by




d. 90%. - Correct Answer ✔✔ - C.
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80%

The time it takes to properly evacuate and dehydrate a system prior to charging with
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refrigerant is determined by the:
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a. Total volume of the system.
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b. Amount of non-condensable(s) (moisture) in the system.
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