EPA EPA Refrigerant Types and Properties

Question 1

Which refrigerant class has the highest ozone depletion potential (ODP)?

Accepted Answer

CFCs (chlorofluorocarbons)

Answer

HCFCs (hydrochlorofluorocarbons)

Answer

HFCs (hydrofluorocarbons)

Answer

HFOs (hydrofluoroolefins)

Question 2

What is the global warming potential (GWP) of R-22 compared to CO2?

Accepted Answer

2,088

Answer

1,810

Answer

1,500

Answer

980

Question 3

Which refrigerant is classified as an HFO and has a GWP of less than 1?

Accepted Answer

R-1234yf

Answer

R-410A

Answer

R-134a

Answer

R-32

Question 4

What does the term 'azeotropic' mean when describing a refrigerant blend?

Accepted Answer

The blend behaves as a single refrigerant with a fixed boiling point

Answer

The blend separates into components when leaked

Answer

The blend has a high temperature glide

Answer

The blend requires special recovery equipment

Question 5

R-410A is classified as which type of refrigerant?

Accepted Answer

HFC zeotropic blend

Answer

CFC

Answer

HCFC

Answer

HFO

Question 6

Which property defines a refrigerant's 'temperature glide'?

Accepted Answer

The temperature range over which a zeotropic blend evaporates at constant pressure

Answer

The difference between the refrigerant's critical and boiling temperatures

Answer

The rate at which refrigerant cools the evaporator coil

Answer

The superheat required at the compressor inlet