EPA 608 609 Refrigerant Properties and Identification

Question 1

What is the ASHRAE/ARI standard cylinder color for R-22 refrigerant?

Accepted Answer

Green

Answer

Light blue

Answer

Rose (pink)

Answer

Yellow

Question 2

Which refrigerant is classified as a hydrofluorocarbon (HFC)?

Accepted Answer

R-134a

Answer

R-22

Answer

R-12

Answer

R-11

Question 3

What does the term 'azeotropic blend' mean when referring to refrigerants?

Accepted Answer

A mixture that behaves like a single refrigerant with a constant boiling point

Answer

A blend that separates into components during a leak

Answer

A refrigerant that contains no lubricating oil

Answer

A blend approved only for commercial refrigeration

Question 4

Which of the following is a chlorofluorocarbon (CFC) refrigerant?

Accepted Answer

R-12

Answer

R-134a

Answer

R-410A

Answer

R-407C

Question 5

What substance serves as the reference standard (GWP = 1) for Global Warming Potential calculations?

Accepted Answer

Carbon dioxide (CO2)

Answer

Chlorine

Answer

Methane

Answer

Water vapor

Question 6

Which refrigerant blend is classified as zeotropic (near-azeotropic)?

Accepted Answer

R-407C

Answer

R-500

Answer

R-502

Answer

R-507A

Question 7

What ozone depletion potential (ODP) does R-134a have?

Accepted Answer

0

Answer

1.0

Answer

0.055

Answer

0.50