EPA Certification Exam questions and 100% correct answers

Which Refrigerants contain the most chlorine? - correct answer CFC's As of what date did it become unlawful to intentionally release Class 1 and Class 2 refrigerants to the atmosphere? - correct answer July 1, 1992 Which Refrigerants have the lowest zone depletion potential? - correct answer HFC's The molecule found in CFC's and HCHC's refrigerants that destroys the ozone in the stratosphere is: - correct answer Chlorine Stratospheric ozone consists of: - correct answer Three oxygen atoms Stratospheric ozone depletion is a _________ problem: - correct answer Global The Gas in the stratosphere that protects us from ultraviolet radiation is: - correct answer Ozone Which refrigerant is a CFC? - correct answer R-12 Which refrigerant is an HCFC? - correct answer R-123 & R-22 Which refrigerant is an HFC? - correct answer R-134a Which refrigerant contains no chlorine? - correct answer R-134a The Molecule found in the stratosphere that indicates stratospheric ozone depletion is taking place is: - correct answer Chlorine monoxide