Hfcs - Study guides, Class notes & Summaries

EPA Certification Exam Questions and Answers | Latest Version | 2024/2025 | Already Passed Which type of refrigerants have the highest chlorine content? CFCs Explanation: Chlorofluorocarbons (CFCs) contain a significant amount of chlorine, which contributes heavily to ozone depletion. From which date did it become illegal to deliberately release Class 1 and Class 2 refrigerants into the air? July 1, 1992 Explanation: This date marks the enforcement of regulations against the ...

ODP Test Questions and Answers Already Passed What does ODP stand for in environmental science? ODP stands for Ozone Depletion Potential. Why is the ozone layer important for life on Earth? It protects living organisms from harmful ultraviolet (UV) radiation from the sun. What are chlorofluorocarbons (CFCs) primarily used for? CFCs are mainly used as refrigerants, propellants in aerosol sprays, and in foam-blowing applications. What is the primary consequence of ozone deplet...

EPA 608 Certification, EPA 608 Exam 2023/2024. November 14, 1994 - ANSWER What date was the sale of CFC's & HCFC's restricted to technicians certified in refrigerant recovery? Memorize it, ya'll. - ANSWER 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 ...

DHN 101 Exam 2 (chapters 5-7) Already Passed Which of the following substances is a disaccharide? a. starch b. maltose c. galactose d. glycogen maltose Which of the following foods has a high glycemic index? a. nonfat milk b. cornflakes cereal c. salted peanuts d. raw carrots cornflakes cereal Dietary fiber... a. supplies more energy, gram per gram, than fat b. is not digested by the human intestinal tract c. promotes tooth decay d. is only in animal sources of food is not digested ...

November 14, 1994 - ANSWER What date was the sale of CFC's & HCFC's restricted to technicians certified in refrigerant recovery? Memorize it, ya'll. - ANSWER 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 After this date recovery equipment needs to be capable ...

NTR 301 Final Exam Study Guide with Complete Solutions Eric normally sweetens his tea with Sugar Twin. While studying abroad in Canada, he picks up a packet of Sugar Twin. Which of the following is true about the similarities/differences between Sugar Twin in the United States and those in Canada? a. Sugar Twin from the US contains saccharine, a zero-calorie sweetener with a bitter aftertaste. b. If he brings home the Sugar Twin packet from Canada, he will be in trouble because possessing ...

EPA 608 Core Questions With Verified Solutions Where is the stratosphere? - ANSWER 10 to 30 miles Where is ozone located? - ANSWER stratosphere What does an ozone molecule consist of? - ANSWER 3 oxygen atoms The ozone layer protects us from... - ANSWER ultraviolet radiation The ozone layer helps to maintain... - ANSWER stable earth temperatures Depletion of ozone causes... - ANSWER crop loss, eye disease, skin cancer, reduced marine life, deforestation, increased ground level o...

List 6 desirable characteristics of a refrigerant - High latent heat Non Toxic Non Flammable Non Corrosive Chemically stable Lubricant soluble Name a Chlorine-free refrigerant - HFCs

EPA 608 Certification, EPA 608 Advanced Test 2024.November 14, 1994 - ANSWER What date was the sale of CFC's & HCFC's restricted to technicians certified in refrigerant recovery? Memorize it, ya'll. - ANSWER 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 i...

List 6 desirable characteristics of a refrigerant correct answer: High latent heat Non Toxic Non Flammable Non Corrosive Chemically stable Lubricant soluble Name a Chlorine-free refrigerant correct answer: HFCs What type of refrigerant are R-11 and R-12 correct answer: Halocarbons Name 3 types of refrigerant compounds and the element components of each correct answer: CFCs= chlorofluorocarbons HCFCs= hydrochlorofluorocarbons HFCs= hydrofluorocarbons What is an azeotropi...