Environmental Science > QUESTIONS & ANSWERS > EPA Universal Top Questions and answers, 100% Accurate. Graded A (All)

EPA Universal Top Questions and answers, 100% Accurate. Graded A

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EPA Universal Top Questions and answers, 100% Accurate. Graded A Which refrigerants contain the most chlorine? - ✔✔-CFC. R11,R12,R500. As of what date did it become unlawful to intentionally ... release Class I and Class II refrigerants to the atmosphere? - ✔✔-July 1 1992. Which refrigerants have the lowest ozone depletion potential (ODP)? - ✔✔-HFC. R134a. The molecule found in CFC and HCFC refrigerants that destroys ozone in the stratosphere is: - ✔✔- Chlorine. Stratospheric ozone consists of: - ✔✔-Three oxygen atoms. Stratospheric ozone depletion is a___problem: a. American b. Global c. Local d. United Nations - ✔✔-Global. The gas in the stratosphere that protects us from ultraviolet radiation is: a. Radon. b. Sulfur Dioxide. c. Carbon Dioxide. d. Ozone - ✔✔-Ozone. Which refrigerant is a CFC? a. R-134a. b. R-123. c. R-22. d. R-12. - ✔✔-R12. Which refrigerant is an HCFC? a. R-134a. b. R-123. c. R-22. d. B and C above. - ✔✔-D. R123. R22. Which refrigerant is an HFC? a. R-134a. b. R-123. c. R-22. d. R-12. - ✔✔-R134a. Which refrigerant contains no chlorine? a. R-134a. b. R-123. c. R-22. d. R-12. - ✔✔-R134a. The molecule found in the stratosphere that indicates stratospheric ozone depletion is taking place is: a. Carbon dioxide. b. Carbon monoxide. c. Chlorine monoxide. d. Radon. - ✔✔-A. Chlorine monoxide. The following actions would violate the Clean Air Act (CAA): a. Knowingly releasing Class I and Class II substances. b. Failing to keep or falsifying required records. c. Failing to reach the required evacuation levels before opening a system to. the atmosphere for service. d. All of the above. - ✔✔-D. All of the above. One time (disposable) refrigerant cylinders are used for: a. Sending refrigerant for reclaim. b. Containing recovered refrigerant. c. Recycling refrigerant. d. Virgin refrigerant. - ✔✔-D. Virgin refrigerant. The rule of thumb for refilling approved cylinders is a maximum of [ ] percent liquid? a. 60%. b. 70%. c. 80%. d. 90%. - ✔✔-C. 80% The time it takes to properly evacuate and dehydrate a system prior to charging with refrigerant is determined by the: a. Total volume of the system. b. Amount of non-condensable(s) (moisture) in the system. c. Ambient temperature. d. All of the above. - ✔✔-D. All of the above. system that fails to hold a vacuum after the evacuation process: a. Has a restriction. b. May contain moisture. c. May have a leak. d. B and C above . - ✔✔-D. [Show More]

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