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70 Cards in this Set
- Front
- Back
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Distributors can only sell refrigerant to an EPA certified technician or a company that employs certified Section 608 employees. |
True |
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There are four (4) categories of technician certification: |
Type 1,2,3 and universal |
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Persons who maintain, service, or repair small appliances must be certified as _________________. |
Type 1or Universal technicians |
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There are four (4) categories of technician certification |
Type 1,2,3 and universal |
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Persons who maintain, service, repair, or dispose of medium, high and very high-pressure appliances containing more than 5 lbs. of refrigerant, or if the installation of such equipment requires refrigerant charging, must be certified as ___________________. |
Type 2 or Universal technicians |
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Persons, who maintain, service, repair, or dispose of low-pressure appliances must be certified as _________________. |
Type 3 or Universal technician |
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Persons, who obtain Type I, Type II and Type III certification levels are certified as _____________. |
Universal technicians |
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1. De-superheats 2. Change of state (Vapor to Liquid) 3. Sub-cools |
Three stages of the condenser |
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Low pressure liquid and flash gas out |
Metering device |
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High-pressure Sub-cooled Liquid in |
Metering device |
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An Ozone molecule consists of _______________. |
Three oxygen atoms (o3) |
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Earth's security blanket ___________________? |
Is the earths stratosphere |
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Minor releases when connecting or disconnecting hoses for service or recovery are considered to be a _____________. |
De-Minimis release |
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EPA regulations require that hoses be equipped with _____________. |
Low-loss fittings |
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Compound gauge measures _________________. |
Low-pressure and vacuum |
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High-Pressure Gauge |
Refrigerant Saturation Temperatures and PSI |
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The stratosphere is comprised of _______________. |
Ozone and other gases. |
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The stratosphere is located ______________ |
between 7 and 30 miles above sea level |
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Stratospheric ozone is a naturally-occurring gas that filters the _____________. |
Sun's ultraviolet (UV) radiation. |
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Acts as a _________in the stratosphere. |
Shield |
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Stratospheric ozone is a naturally-occurring gas that filters the _____________. |
Sun's ultraviolet (UV) radiation. |
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Acts as a _________in the stratosphere. |
Shield |
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The stratosphere Protects life on Earth from the _____________. |
Sun's UV rays. |
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Stratospheric Ozone depletion is a __________that can lead to problems |
Global issue |
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Stratospheric ozone is a naturally-occurring gas that filters the _____________. |
Sun's ultraviolet (UV) radiation. |
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Acts as a _________in the stratosphere. |
Shield |
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The stratosphere Protects life on Earth from the _____________. |
Sun's UV rays. |
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Stratospheric Ozone depletion is a __________that can lead to problems |
Global issue |
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Stratospheric Ozone depletion is a global issue that can lead to problems such as: |
Crop Loss,Increase in Eye Diseases,Skin Cancer,Reduced Marine Life ,Deforestation,Increased Ground Level Ozone |
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Stratospheric ozone is a naturally-occurring gas that filters the _____________. |
Sun's ultraviolet (UV) radiation. |
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Acts as a _________in the stratosphere. |
Shield |
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The stratosphere Protects life on Earth from the _____________. |
Sun's UV rays. |
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Stratospheric Ozone depletion is a __________that can lead to problems |
Global issue |
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Stratospheric Ozone depletion is a global issue that can lead to problems such as: |
Crop Loss,Increase in Eye Diseases,Skin Cancer,Reduced Marine Life ,Deforestation,Increased Ground Level Ozone |
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CFCs and HCFCs which contain ___________,have been found in air samples taken from the stratosphere. |
Chlorine |
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Stratospheric ozone is a naturally-occurring gas that filters the _____________. |
Sun's ultraviolet (UV) radiation. |
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Acts as a _________in the stratosphere. |
Shield |
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The stratosphere Protects life on Earth from the _____________. |
Sun's UV rays. |
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Stratospheric Ozone depletion is a __________that can lead to problems |
Global issue |
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Stratospheric Ozone depletion is a global issue that can lead to problems such as: |
Crop Loss,Increase in Eye Diseases,Skin Cancer,Reduced Marine Life ,Deforestation,Increased Ground Level Ozone |
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CFCs and HCFCs which contain ___________,have been found in air samples taken from the stratosphere. |
Chlorine |
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When CFCs and HCFCs are released into the atmosphere the Chlorine in them _____________. |
causes depletion of the Ozone layer. |
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When CFCs and HCFCs reach the stratosphere, the ______________ them to break apart. |
sun’s UV radiation causes |
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A single Chlorine atom can destroy ____________Ozone molecules |
100,000 |
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Air samples taken over erupting volcanoes show that volcanoes contribute only ___________quantity of Chlorine as compared to CFCs and HCFCs. |
a small |
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The rise in Chlorine measured in the stratosphere matches the rise ________________over the past two decades. |
in the amount of Fluorine, which has different natural sources than Chlorine |
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The rise in Chlorine measured in the stratosphere matches the rise in ________________. |
in CFC & HCFCs emissions. |
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The chlorine in CFCs & HCFCs will neither _____________so it does not rain out of the atmosphere. |
dissolve in water nor break down into compounds that dissolve in water, |
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_____________occurring chlorine will dissolve in water and rain out of the atmosphere. |
Naturally |
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Ozone Depletion Potential (ODP)______________________ |
is a measurement of a substance such as CFC’s or HCFC’s ability to destroy ozone. |
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___________have the highest ODP. |
CFC's |
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Greenhouse Gases warm __________. |
the Earth |
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Greenhouse Gases Warm the Earth in two ways: |
By absorbing energy, slowing the rate at which it escapes to space,Acting like a blanket insulating the Earth. |
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R-744 Carbon dioxide (CO2) is a natural gas |
True |
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Very high-pressure refrigerant (R-744) with _____ODP |
0 |
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Very high-pressure refrigerant (R-744) with |
a Global Warming Potential (GWP) of 1 (one). |
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Require a red color marking on all process tubes and other pipes through which a flammable refrigerant passes and the service connection. |
Flammable refrigerant |
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The color marking must extend one inch in both directions from service locations. |
Flammable refrigerant’s |
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Propane (R-290) used as refrigerant must meet the purity standards set for HVACR equipment. |
True |
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Propane purchased for grilling contains impurities which will damage refrigeration equipment. |
True |
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Propane and Isobutane (R-600a) are examples of “A3” flammable refrigerants that do not require _______________. |
Recovery |
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Fluorinated gases such as the CFCs, HCFCs and HFCs are referred to as High Global Warming Potential gases. |
High GWP gases |
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_______________________ is a HFC with (ODP) of 0 and global warming potential (GWP) 1,030 times greater than carbon dioxide |
R-245fa (Pentafluoropropane) |
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Low-pressure refrigerant used in commercial industries such as chillers and foams. |
R-245fa (Pentafluoropropane) |
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____________________ is a HFC with (ODP) of 0 and global warming potential (GWP) 1,430 times greater than carbon dioxide. |
R-134a (Tetrafluoroethane) |
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Medium-range pressure refrigerant used in auto, domestic and commercial industries. |
R-134a (Tetrafluoroethane) |
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_______________ A high-pressure, HFC refrigerant with an (ODP) of 0 and global warming potential (GWP) 2,090 times greater than carbon dioxide. |
R-410A (Hydrofluorocarbon) |
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_____________ are HFO refrigerant with an (ODP) of 0 Global warming potential (GWP) only 4 times greater than carbon dioxide. |
R-1234yf Medium-pressure |
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_______________ are for (New Chillers, heat pumps, and vending machines) |
R-1234ze Medium-pressure |
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R-1233zd |
Low-Pressure (New Chillers & Foam blowing) |
