EPA 608 Universal Questions and Answers | Latest Version | 2024/2025 | Already Passed

EPA 608 Universal Questions and Answers | Latest Version | 2024/2025 | Already Passed Technicians working in refrigeration who breach the Clean Air Act may face consequences such as: the loss of their EPA certification, monetary fines, and mandatory appearances in Federal court. Following 1995, the only permissible sources of CFC refrigerants for servicing existing equipment in the United States are: recovered and recycled refrigerants. Recovered refrigerant can be reused in: the original system or other systems belonging to the same owner without any limitations. Refrigerant cannot be termed as "reclaimed" unless it: has undergone chemical analysis and conforms to the ARI-700 standards. The EPA has the authority to demand that technicians prove their competency in proper refrigerant recovery and recycling techniques. Failure to prove such competency may lead to: the cancellation of the technician’s certification. 2 What features of CFCs make them more likely to reach the stratosphere compared to other chlorine-containing compounds? CFCs that have chlorine but lack hydrogen are very stable and do not decompose in the lower atmosphere. The chlorine or bromine then interacts with ozone, reverting it to oxygen and thereby depleting the ozone layer. A system is deemed properly dehydrated when: the vacuum gauge indicates that the required final vacuum level has been achieved and maintained. Disposable refrigerant cylinders are designated for: new, unused refrigerant. Which of these refrigerants is classified as an HCFC? R-123, R-124, R-22 Which characteristic describes an azeotropic refrigerant mixture? It behaves like a single- component refrigerant throughout its entire range of use. What common feature do chlorofluorocarbons (CFCs) and hydrochlorofluorocarbons (HCFCs) share? They both function as a single-component refrigerant across their full range of operation. 3 When disposing of a single-use refrigerant cylinder, the internal pressure should be reduced to at least: 0 psig.