EPA 608 CORE EXAM TESTS COMBINED | VERIFIED TEST QUESTIONS WITH CORRECT SOLUTIONS

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 has the lowest global warming potential? a. R-134a b. R-407C c. R-410A d. R-600a - ANSWER d. R-600a Which of the following gases is used as the baseline measurement for global warming potential? a. Ammonia b. Carbon Dioxide c. CFC-12 d. Propane - ANSWER b. Carbon Dioxide Which type of refrigerant typically has the lowest global warming potential? a. HCFCs b. HFOs c. HFCs d. All are equal - ANSWER b. HFOs 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 ozone. What does an ozone molecule consist of? - ANSWER 3 oxygen atoms What type of refrigerants, when released into the atmosphere, cause ozone depletion? - ANSWER cfcs and hcfcs What in refrigerants causes ozone depletion? – ANSWER chlorine What compound is formed when chlorine meets ozone? - ANSWER chlorine monoxide How many ozone molecules can be destroyed by one chlorine atom? - ANSWER 100,000 The rise in the amount of chlorine measured in the stratosphere over the past twenty years matches the rise in... –ANSWER fluorine. The chlorine in CFCs will break down in water (true/false). - ANSWER false The chlorine in CFCs will break down into compounds that will dissolve in water (true/false). - ANSWER false What does ODP stand for? - ANSWER ozone depletion potential HFCs have a higher ODP than CFCs (true/false). - ANSWER false Which refrigerant type has no ODP? - ANSWER HFCs What chemicals make up CFCs? - ANSWER chlorine flourine carbon What chemicals make up HCFCs? - ANSWER hydrogen chlorine fluorine carbon What chemicals make up HFCs? - ANSWER hydrogen fluorine carbon Give examples of CFCs? - ANSWER r-11, 12, 500 Give examples of HCFCs? - ANSWER r-22, 123 Give examples of HFCs? -