Epa 608 Universal Final Exam (questions and answers)

Epa 608 Universal Final Exam (questions and answers) Which refrigerants contain the most chlorine? - CORRECT ANSWER-CFC. R11,R12,R500. As of what date did it become unlawful to intentionally release Class I and Class II refrigerants to the atmosphere? - CORRECT ANSWER-July 1 1992. Which refrigerants have the lowest ozone depletion potential (ODP)? - CORRECT ANSWER-HFC. R134a. The molecule found in CFC and HCFC refrigerants that destroys ozone in the stratosphere is: - CORRECT ANSWER-Chlorine. Stratospheric ozone consists of: - CORRECT ANSWER-Three oxygen atoms. Stratospheric ozone depletion is a___problem: a. American b. Global c. Local d. United Nations - CORRECT ANSWER-Global. The gas in the stratosphere that protects us from ultraviolet radiation is: a. Radon. b. Sulfur Dioxide. c. Carbon Dioxide. d. Ozone - CORRECT ANSWER-Ozone. Which refrigerant is a CFC? a. R-134a. b. R-123. c. R-22. d. R-12. - CORRECT ANSWER-R12. Which refrigerant is an HCFC? a. R-134a. b. R-123. c. R-22. d. B and C above. - CORRECT ANSWER-D.