EPA 608 Core Test Sample Questions | 100% Correct Answers | Verified | Latest 2024 Version

As of what date did it become unlawful to release Class 1 and Class II refrigerants to the atmosphere? a. July 1, 1992 b. July 1, 1993 c. November 14, 1994 d. January 1, 1996 - a. July 1, 1992 What is the ozone layer and why is it important to us on Earth? a. Thin layer of R-22 in the atmosphere that filters UV. b. Protective shield for Earth from the sun's harmful ultraviolent (UV) rays in the stratosphere layer that extends about 6 to 30 miles above earth c. Thin layer of CFC and HCFC in the atmosphere that filters UV. d. Protective layer that shields UV in the Troposphere - b. Protective shield for Earth from the sun's harmful ultraviolent (UV) rays in the stratosphere layer that extends about 6 to 30 miles above earth The atom found in CFC and HCFC refrigerants that destroys ozone in the stratosphere is? a. Fluorine b. Carbon c. Hydrogen d. Chlorine - d. ChlorineWhat is an ozone molecule made of? a. Refrigerant b. Ammonia c. Three oxygen atoms (O3). d. Oxygen and ammonia. - Three oxygen atoms (O3). Which refrigerant is a CFC? a. R-134A b. R-123 c. R-22 d. R-12 - d. R-12 What is the name of the atom that attacks ozone molecules? a. CFC atoms b. HCFC atoms c. Chlorine and bromine atoms emitted into the atmosphere d. a and b - c. Chlorine and bromine atoms emitted into the atmosphere Which refrigerant is a HFC? a. R-134A b. R-123 c. R-22 d. R-12 - a. R-134A Describe how one Chlorine atom can destroy 100,000 ozone molecules. a. Chlorine releases one of the oxygen atoms and forms two O2 oxygen