CHAPTER 9 INTRODUCTION TO REFRIGERATING TEST QUESTION AND ANSWERS

The US governmental body charged with enforcing the regulations of the Clean Air Act is the Environmenal Protection Agency (EPA) Section ________ of the Clean Air Act requires that all technicians have certification in order to service HVACR equipment. 608 Which type of refrigerant has the highest ozone depletion potential? CFC's HFC's have an ozone depletion potential of _________? 0 A refrigerant's global warming potential (GWP) is based on the ratio of its warminng effect compared to the warming effect of ________? Carbon Dioxide A partially halogenated refrigerant classification with 0 ODP but high GWP describes _________ HFC's A refrigerants classification with 0 ODP, low toxicity, slightly flammable, and used in some automotive air-conditioning systems describes __________ HFO's A halogenated refrigerant classification with high ODP and no longer manufactured since 1995 describes ___________ CFC's A refrigerant classification of organic substances with 0 ODP, low GWP, low toxicity, but high flammability and used in standalone freezers and domestic refrigerant-freezers describes_________ HCs A refrigerant classification with a moderate ODP level but high GWP with a phaseout scheduled for 2030 describes __________. HCFCs In a refrigerant blend contains an HCFC and an HFC, it is considered a(n) ____________. HCFC Which refrigerant blend responds to temperature change like a single refrigerant? Azeotropic