CHAPTER 9 INTRODUCTION TO REFRIGERATING
QUESTIONS WITH ACCURATE ANSWERS
A group of synthetic lubricants compatible with CFC's, HCFCs, and HFCs describes
_________ lubricants. correct answer POE
A halogenated refrigerant classification with high ODP and no longer
manufactured since 1995 describes ___________ correct answer CFC's
A measure of liquid's resistance to flow is called _______. correct answer
Viscosity
A partially halogenated refrigerant classification with 0 ODP but high GWP
describes _________ correct answer HFC'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_________ correct answer HCs
A refrigerant classification with a moderate ODP level but high GWP with a
phaseout scheduled for 2030 describes __________. correct answer HCFCs
A refrigerant lubricant made from refined crude oil and used only with CFCs and
HCFCs describes _________ lubricants. correct answer MO
A refrigerant that is classified as A1 has ___________. correct answer Low toxicity
and no flammability identified
, A refrigerant that is classified as B3 has ________. correct answer High toxicity
and no flammability
A refrigerant's global warming potential (GWP) is based on the ratio of its
warminng effect compared to the warming effect of ________? correct answer
Carbon Dioxide
A refrigerants classification with 0 ODP, low toxicity, slightly flammable, and used
in some automotive air-conditioning systems describes __________ correct
answer HFO's
A refrigeration lubricant with a high _______ point may have excessive wax
separation, which can clog the system. correct answer Floc
Azeotropic blend used in low-temperature refrigeration. correct answer R-508B
HC refrigerant commonly used in domestic refrigerations, freezers, and
standalone equipment. correct answer R-600a
HFC zeoptropic blend used in new air-conditioning equipment. correct answer R-
410a
HFC zeotropic blend used in medium and low temperature refrigeration. correct
answer R-404A
HFC's have an ozone depletion potential of _________? correct answer 0
QUESTIONS WITH ACCURATE ANSWERS
A group of synthetic lubricants compatible with CFC's, HCFCs, and HFCs describes
_________ lubricants. correct answer POE
A halogenated refrigerant classification with high ODP and no longer
manufactured since 1995 describes ___________ correct answer CFC's
A measure of liquid's resistance to flow is called _______. correct answer
Viscosity
A partially halogenated refrigerant classification with 0 ODP but high GWP
describes _________ correct answer HFC'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_________ correct answer HCs
A refrigerant classification with a moderate ODP level but high GWP with a
phaseout scheduled for 2030 describes __________. correct answer HCFCs
A refrigerant lubricant made from refined crude oil and used only with CFCs and
HCFCs describes _________ lubricants. correct answer MO
A refrigerant that is classified as A1 has ___________. correct answer Low toxicity
and no flammability identified
, A refrigerant that is classified as B3 has ________. correct answer High toxicity
and no flammability
A refrigerant's global warming potential (GWP) is based on the ratio of its
warminng effect compared to the warming effect of ________? correct answer
Carbon Dioxide
A refrigerants classification with 0 ODP, low toxicity, slightly flammable, and used
in some automotive air-conditioning systems describes __________ correct
answer HFO's
A refrigeration lubricant with a high _______ point may have excessive wax
separation, which can clog the system. correct answer Floc
Azeotropic blend used in low-temperature refrigeration. correct answer R-508B
HC refrigerant commonly used in domestic refrigerations, freezers, and
standalone equipment. correct answer R-600a
HFC zeoptropic blend used in new air-conditioning equipment. correct answer R-
410a
HFC zeotropic blend used in medium and low temperature refrigeration. correct
answer R-404A
HFC's have an ozone depletion potential of _________? correct answer 0
