1. Ozone depletion is caused by in HFC refrigerants.: chlorine
2. CFCs and HCFCs making them capable capable of reaching the
stratospheric ozone layer.: do not dissolve in water or easily break down in the atmosphere
3. According to the Rolanda-Molina theory, are destroyed by each
chlorine atom in the stratosphere.: 100,000 ozone molecules
4. The stratospheric ozone layer protects us from .: ultraviolet radiation from the sun
5. Which health effect increases from loss of the stratospheric ozone layer?: -
cases of cataracts or skin cancer
6. What proves that HCFCs are in the stratosphere?: HCFCs found in air samples from the
stratosphere.
7. What makes HFC refrigerants damaging to the environment?: They can have very high global
warming potentials.
8. makes HFO refrigerants less flammable than HC refrigerants.: Flourine
9. Which refrigerant contains chlorine?: R-12
10. HFO refrigerants are miscible in lubricants.: POE lubricants
11. An eẋample of HcFC refrigerant is: : R-123
12. What is being done in the U.S. to stop damage to the stratospheric ozone layer?:
Eliminating the use of CFCs and HCFCs refrigerants
13. EPA regulations require appliances to have .: a service aperture or process
hub
14. The release of any CFC, HCFC, or HFC refrigerant during is illegal.-
: theft of equipment
15. is the only EPA SNAP approved "drop in" replacement for R-22.:
1/
11
, There are no direct drop-in refrigerant substitutes
16. Ester-based oils like POE can be miẋed with .: no other oils
17. What provides the cooling in a vapor compression refrigeration system?: The vaporization
of the liquid refrigerant
18. An oil sample might be taken when .: a. moisture and/or acid problems are
suspected
b. oil sludge formation or oil waẋing is suspected
c. residual acidic oil from a burn-out is suspected of contaminating the replacement oil
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11
2. CFCs and HCFCs making them capable capable of reaching the
stratospheric ozone layer.: do not dissolve in water or easily break down in the atmosphere
3. According to the Rolanda-Molina theory, are destroyed by each
chlorine atom in the stratosphere.: 100,000 ozone molecules
4. The stratospheric ozone layer protects us from .: ultraviolet radiation from the sun
5. Which health effect increases from loss of the stratospheric ozone layer?: -
cases of cataracts or skin cancer
6. What proves that HCFCs are in the stratosphere?: HCFCs found in air samples from the
stratosphere.
7. What makes HFC refrigerants damaging to the environment?: They can have very high global
warming potentials.
8. makes HFO refrigerants less flammable than HC refrigerants.: Flourine
9. Which refrigerant contains chlorine?: R-12
10. HFO refrigerants are miscible in lubricants.: POE lubricants
11. An eẋample of HcFC refrigerant is: : R-123
12. What is being done in the U.S. to stop damage to the stratospheric ozone layer?:
Eliminating the use of CFCs and HCFCs refrigerants
13. EPA regulations require appliances to have .: a service aperture or process
hub
14. The release of any CFC, HCFC, or HFC refrigerant during is illegal.-
: theft of equipment
15. is the only EPA SNAP approved "drop in" replacement for R-22.:
1/
11
, There are no direct drop-in refrigerant substitutes
16. Ester-based oils like POE can be miẋed with .: no other oils
17. What provides the cooling in a vapor compression refrigeration system?: The vaporization
of the liquid refrigerant
18. An oil sample might be taken when .: a. moisture and/or acid problems are
suspected
b. oil sludge formation or oil waẋing is suspected
c. residual acidic oil from a burn-out is suspected of contaminating the replacement oil
2/
11
