Epa 608 exam Study guides, Class notes & Summaries

EPA 608 Certification, EPA 608 Exam 2023/204 complete solution

Ozone depletion is caused by _______ in HFC refrigerants. - Answer-chlorine CFCs and HCFCs ________ making them capable capable of reaching the stratospheric ozone layer. - Answer-do not dissolve in water or easily break down in the atmosphere According to the Rolanda-Molina theory, ________ are destroyed by each chlorine atom in the stratosphere. - Answer-100,000 ozone molecules The stratospheric ozone layer protects us from _______. - Answer-ultraviolet radiation from the sun Which...

EPA 608 Exam Test Questions With Revised Correct Answers BEST UPDATED COMBINED SET!! The molecule found in CFCs and HCFCs that depletes ozone is - ANSWER Chlorine A single chlorine atom can destroy how many ozone molecules - ANSWER 100,000 Silicone elastomers, for use in seals and gaskets, are not compatible with which refrigerants - ANSWER HFOs Reusable refrigerant containers under high-pressure must be hydrostatically tested how often - ANSWER 5 years ...

Why are flammable HFO refrigerants classified as A2L and not A2? - They have low flammability, being less flammable than HC refrigerants. Which of the following statements is true? - Propane cylinders for grilling contains impurities that refrigerant-grade propane does not have. Over-evacuation of a system can ________ - never occur; you can never pull too much air or other impurities from a system A system containing a flammable refrigerant must have the process tubes or service connec...

EPA 608 EXAM QUESTIONS AND ANSWERS

EPA 608 universal Final Exam 2023/2024 Questions & Answers Graded A.

EPA 608 Certification, EPA 608 Exam Test with Answers 2024 November 14, 1994 - -What date was the sale of CFC's & HCFC's restricted to technicians certified in refrigerant recovery? Memorize it, ya'll. - -1989- Montreal Protocol July 1 1992- Violation to vent CFCs or HCFCs Nov 15 1993- Recovery/Recycling equipment must be certified and labeled by EPA AND Before this date recovery equipment needed to be capable of removing 80% of the refrigerant, w or wo compressor, or 4 in Hg Aft...

EPA 608 Certification, EPA 608 Exam

Why are flammable HFO refrigerants classified as A2L and not A2? - ANSWER They have low flammability, being less flammable than HC refrigerants. Which of the following statements is true? - ANSWER Propane cylinders for grilling contains impurities that refrigerant-grade propane does not have. Over-evacuation of a system can ________ - ANSWER never occur; you can never pull too much air or other impurities from a system