Cfc refrigerants r 11 - Study guides, Class notes & Summaries

EPA 609 Technician Certification Exam Questions with Complete Solutions 100% Verified 1. T/F Ozone at ground level ans at Stratosphere is a harmful pollutant - Correct Answers FALSE 2. For determining the Ozone Depletion Potential __________ having been assigned a factor of 1 - Correct Answers CFC-11 3. Ozone layer absorbs and scatters __________ form the sun - Correct Answers Ultraviolet light 4. T/F R-134 is a chlorine-free refrigerant - Correct Answers TRUE 5. a refillable refrig...

The primary water source for cooling the condenser of a water-cooled recovery unit is: - local municipal water supply Which of the foloowing repairs would ALWAYS be considered "major" under EPA's - replacement of evaporator coil According to ASHRAE Guideline 3-1996, if the pressure in a system rises from 1 mm Hg to a level above ____ during a standing vacuum test, the system should be checked for leaks. - 2.5 mm Hg On low pressure chillers, moisture typically enters the refrigerant syst...

Lifetime of CFCs is believed to range from _____ years? - correct answer 2 to 100 For determining the Ozone Depletion Potential ________ having been assigned a factor of 1? - correct answer CFC-11 Ester-based synthetic oils can be mixed with other oils? - correct answer False Since ________, it is no longer legal for CFCs to be manufactured or imported into the United States? - correct answer January 1, 1996 Since _____, it is illegal to vent substitutes for CFC and HCFC refriger...

EPA 608 CORE EXAM TESTS COMBINED | VERIFIED TEST QUESTIONS WITH CORRECT SOLUTIONS Where is the stratosphere? - ANSWER 10 to 30 miles Where is ozone located? - ANSWER stratosphere 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 - ANSWER b. Molecules containing 3 oxygen atoms Which of the following refrigerants ha...

EPA 608 Type 3 exam with 100% Complete Solutions Lates (Graded A+) On low pressure chillers, moisture typically enters the refrigerant system through air leaks from areas with gaskets or fittings The maximum test pressure for leak testing a low pressure centrifugal is: 10 psig Leak test and repair the chiller to reduce refrigerant loss from a pruge unit on CFC-11 chiller ... A hydrostatic tube test kit is used to: determine if a tube leaks Commercial and industrial process refrigeratio...

EPA 608 Type 3 exam with 100% Complete Solutions Latest 2024/2025 (Graded A+) On low pressure chillers, moisture typically enters the refrigerant system through air leaks from areas with gaskets or fittings The maximum test pressure for leak testing a low pressure centrifugal is: 10 psig Leak test and repair the chiller to reduce refrigerant loss from a pruge unit on CFC-11 chiller ... A hydrostatic tube test kit is used to: determine if a tube leaks Commercial and industrial process re...

EPA 608 Core Test Updated Sample Questions with Correct Answers 100% A+ Graded 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 - CORRECT ANSWER-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 ...

Lifetime of CFCs is believed to range from _____ years? o :## 2 to 100 For determining the Ozone Depletion Potential ________ having been assigned a factor of 1? o :## CFC-11 Ester-based synthetic oils can be mixed with other oils? o :## False Since ________, it is no longer legal for CFCs to be manufactured or imported into the United States? o :## January 1, 1996 Since _____, it is illegal to vent substitutes for CFC and HCFC refrigerants? o :## November 15, 1995 Ozone at ground ...

EPA 609 Questions and Answers Already Passed Lifetime of CFCs is believed to range from _____ years? 2 to 100 For determining the Ozone Depletion Potential ________ having been assigned a factor of 1? CFC-11 Ester-based synthetic oils can be mixed with other oils? False Since ________, it is no longer legal for CFCs to be manufactured or imported into the United States? January 1, 1996 Since _____, it is illegal to vent substitutes for CFC and HCFC refrigerants? November 15, 1995 Ozone at g...

As of what date did it become unlawful to release Class 1 and Class II refrigerants to the atmosphere? - July 1, 1992 What is the ozone layer and why is it important to us on Earth? - Protective shield for Earth from the sun's harmful ultraviolet. The atom found in CFC and HCFC refrigerants that destroys ozone in the atmosphere is? - Chlorine What is an ozone molecule made of? - Three oxygen atoms (O3) Which refrigerant is a CFC? - R-12 What is the name of the atom that attacks ozone...