EPA 608 609 - EPA Refrigerant Handling Ozone Depletion and Regulations Questions and Answers 2

Question 1

Which international agreement established the framework for phasing out ozone-depleting substances including CFCs and HCFCs?

Accepted Answer

The Montreal Protocol

Answer

The Kyoto Protocol

Answer

The Paris Agreement

Answer

The Clean Air Act Amendments of 1990

Question 2

What property of CFC refrigerants makes them particularly damaging to the stratospheric ozone layer?

Accepted Answer

They contain stable chlorine atoms that are released in the upper atmosphere

Answer

They have a very high global warming potential

Answer

They react with UV radiation to produce nitrous oxide

Answer

They are heavier than air and accumulate near the ozone layer

Question 3

What is the Ozone Depletion Potential (ODP) of R-11?

Accepted Answer

1.0

Answer

0.5

Answer

0.8

Answer

1.5

Question 4

Under the EPA's venting prohibition under Section 608, which of the following refrigerants is NOT subject to the prohibition?

Accepted Answer

CO2 (R-744) used as a refrigerant substitute

Answer

R-22 (HCFC)

Answer

R-410A (HFC)

Answer

R-134a (HFC)

Question 5

What was the U.S. production phase-out date for R-22 (HCFC-22)?

Accepted Answer

January 1, 2020

Answer

January 1, 2010

Answer

January 1, 2015

Answer

January 1, 2025

Question 6

Which layer of the Earth's atmosphere contains the ozone layer that protects life from harmful UV radiation?

Accepted Answer

Stratosphere

Answer

Troposphere

Answer

Mesosphere

Answer

Thermosphere