Cfc core exam 2025 - Study guides, Class notes & Summaries

EPA SECTION 608 CORE (2021-2022 revision) A disposable cylinder should be reduced to what pressure before scrapping? a. 0 psig b. 20 psig c. 50 psig d. 80 psig A major system repair is being performed on a R-22 appliance. What CANNOT be done to recharge the appliance? a. Add R-22 after the repair is complete. b. Retrofit the unit to R-407C. c. Use recovered or recycled R-22 from the same owner. d. Top off the unit with R-410a. A refillable cylinder must not be filled above what ...

EPA 608 CORE Exam | Questions and Correct Answers | Latest Update 2024/2025 | Graded A+ What characteristic or characteristics of CFCs make them more likely than other chlorine compounds to reach the stratosphere? - Answer -Dont disolve iin water Each chlorine atom in the stratosphere can destroy how many ozone molecules? - Answer - 100,000 ozone molecules Which refrigerant contains a CFC? R500, R12, R113 or R11? - Answer -Theyre all CFC's HYDROCHLORIC FLORICCARBON (HCFC) refrigerant c...

CFC Core Exam | Questions and Correct Solutions Latest Update __are fluorocarbon refrigerants that cause no harm to stratospheric ozone. A.CFCS B.HCFCS C.HFCs D.HalonsTM - Answer - C 2.The Clean Air Act_. A.calls for the phaseout of PFC refrigerant production B.requires that all leaks be fixed within 30 days C.requires OSHA to set standards for the recovery of refrigerants prior to appliance disposal D.prohibits CFC/HCFC venting as of July 1,1992 - Answer - D 3.Refrigerant__is the ty...

EPA 608 CORE Exam | Questions and Correct Answers | Latest Update 2024/2025 | Graded A+ What characteristic or characteristics of CFCs make them more likely than other chlorine compounds to reach the stratosphere? - Answer -Dont disolve iin water Each chlorine atom in the stratosphere can destroy how many ozone molecules? - Answer - 100,000 ozone molecules Which refrigerant contains a CFC? R500, R12, R113 or R11? - Answer -Theyre all CFC's HYDROCHLORIC FLORICCARBON (HCFC) refrigerant c...

EPA 608 Core Test Sample Questions with 100% Correct Answers 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 - Answer️️ -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 la...

EPA SECTION 608 CORE (2022 revision) What does ozone in the stratosphere above the earth consist of? a. Molecules containing 2 oxygen atoms. b. Molecules containing 3 oxygen atoms. c. Molecules containing 4 oxygen atoms. d. Molecules containing 5 oxygen atoms Which of the following refrigerants has the lowest global warming potential? a. R-134a b. R-407C c. R-410A d. R-600a Which of the following gases is used as the baseline measurement for global warming potential? a. Ammo...