EPA 608 EXAM PRACTICE QUESTIONS 1-100

EPA 608 EXAM PRACTICE QUESTIONS 1-100 Ozone depletion is caused by _______ in HFC refrigerants. - correct answer- chlorine CFCs and HCFCs ________ making them capable capable of reaching the stratospheric ozone layer. - correct 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. - correct answer- 100,000 ozone molecules The stratospheric ozone layer protects us from _______. - correct answer- ultraviolet radiation from the sun Which health effect increases from loss of the stratospheric ozone layer? - correct answer- cases of cataracts or skin cancer What proves that HCFCs are in the stratosphere? - correct answer- HCFCs found in air samples from the stratosphere. What makes HFC refrigerants damaging to the environment? - correct answer- They can have very high global warming potentials. _______ makes HFO refrigerants less flammable than HC refrigerants. - correct answer- Flourine Which refrigerant contains chlorine? - correct answer- R-12 HFO refrigerants are miscible in _______ lubricants. - correct answer- POE lubricants An example of HcFC refrigerant is: ______ - correct answer- R-123