What is the phaseout date for the production and import of new R-22 in the U.S.?

• 2018

• 2020

• 2022

• 2025

When did it become a violation to vent CFC and HCFCs?

• July 1, 1989

• July 1, 1992

• Nov. 15, 1993

• Dec. 31, 1995

The sale of CFC and HCFC refrigerants has been restricted to certified technicians since

• November 15, 1993

• July 1, 1992

• December 31, 1995

• November 14, 1994

Which of the following refrigerants is considered an HFC-type of refrigerant?

• R-134a

• R-12

• R-22

• R-11

Which type of refrigerant has the highest Ozone Depletion Potential (ODP)?

• HFC

• HCFC

• CFC

• All have the same ODP.

To clean refrigerant by the use of filter dryers and then reuse it is called ____.

• recovery

• renew

• reclaim

• recycle

To reprocess refrigerant to meet new product specifications is called ____.

• recovery

• renew

• reclaim

• recycle

Refrigerants that are made up of two refrigerants that, when blended in the right proportions, combine to make a third stable refrigerant, are called ____.

• blends

• azeotropes

• near azeotropes

• mixtures

While servicing a system, the technician discovers that some R-502 was added to a R-22 system. The technician should:

• vent the refrigerant since it cannot be reclaimed.

• recycle the refrigerant.

• recover the refrigerant into a separate tank.

• recover and use it in a different system.

Which of the following refrigerants does not contain chlorine?

• R-22

• R-12

• R-134a

• R-11