EPA 608 Type III Complete Questions & Answers

What do R-11 and R-123 refrigerants have in common? A. They are oxygen depleting B. They are Class I and II substances as defined by the EPA C. Both A and B D. Neither A nor B - ANSWER C. Both A and B What is the required evacuation level for recovering refrigerant from a low-pressure appliance with a recovery machine manufactured before November 15, 1993? A. 0 psig B. 4" Hg C. 10 A Hg D. 25" Hg - ANSWER D. 25" Hg How is frost best removed from a sight glass? A. reverse the refrigeration cycle. B. Scrape or chip the ice off. C. spray the sight glass with alcohol. D. turn off the water supply. - ANSWER C. spray the sight glass with alcohol. What is the color code for a recovery cylinder for R- 22? A. Gray with yellow top. B. Yellow with gray top. C. Yellow with white top. D. White with yellow top. - ANSWER A. Gray with yellow top Why do low-pressure chillers require purge units? A. they operate below atmospheric pressure. B. they draw non-condensables through g