Epa 608 Universal Exam Questions (160 Terms) With Verified Definitions Updated 2024

R-410A is not a typical blended refrigerant because: - It is near azeotropic refrigerant; it can be charged as either a liquid or vapor; while it has a 400 series refrigerant number it behaves like a 500 series refrigerant {Ans: }The term used to describe the fact that a refrigerant blend has a range of boiling or condensing pints at a constant pressure is: - temperature glide. {Ans: }An example of an HFC refrigerant is: - R-410A {Ans: }Which refrigerant(s) must be recovered before opening a system or disposing of a system? - all refrigerants must be recovered. {Ans: }A hermetic compressor must never be operated when: - there is a dehydration vacuum in the system. {Ans: }The ozone layer protects the earth from: - ultraviolet radiation from the sun. {Ans: }