Which Refrigerants contain the most chlorine? – ANSWER CFC’s
As of what date did it become unlawful to intentionally release Class 1 and Class 2
refrigerants to the atmosphere? – ANSWER July 1, 1992
Which Refrigerants have the lowest zone depletion potential? – ANSWER HFC’s
The molecule found in CFC’s and HCHC’s refrigerants that destroys the ozone in the
stratosphere is: – ANSWER Chlorine
Stratospheric ozone consists of: – ANSWER Three oxygen atoms
Stratospheric ozone depletion is a problem: – ANSWER Global
The Gas in the stratosphere that protects us from ultraviolet radiation is: – ANSWER
Ozone
Which refrigerant is a CFC? – ANSWER R-12
Which refrigerant is an HCFC? – ANSWER R-123 & R-22
Which refrigerant is an HFC? – ANSWER R-134a
Which refrigerant contains no chlorine? – ANSWER R-134a
The Molecule found in the stratosphere that indicates stratospheric ozone depletion is
taking place is: – ANSWER Chlorine monoxide
The following actions would violate the clean air act (CAA): – ANSWER Knowingly
releasing Class 1 Class 2 substances failing to keep or falsifying required records
failing to tech the required evacuation levels before opening a systems to the
atmosphere for service
One time (disposable) refrigerant cylinders are used for: – ANSWER Virgin refrigerant
The rule of thumb for refilling approved cylinders is a maximum of __ percent liquid?
- ANSWER 80%
The time it takes to properly evacuate and dehydrate a system prior to charging with
refrigerant is determined by the: – ANSWER Total volume of the system
Amount of non-condensibles (moisture) in the system
Ambient Temperature