EPA 608
EPA 608 EXAM PRACTICE QUESTIONS AND ANSWERS
Ozone depletion is caused by _______ in HFC
refrigerants. - correct answer chlorine
CFCs and HCFCs ________ making them capable capable
of reaching the stratospheric ozone layer. - correct answer do
not dissolve in water or easily break down in the
atmosphere
According to the Rolanda-Molina theory, ________ are
destroyed by each chlorine atom in the stratosphere. -
correct answer 100,000 ozone molecules
The stratospheric ozone layer protects us from _______. -
correct answer ultraviolet radiation from the sun
,EPA 608
Which health effect increases from loss of the
stratospheric ozone layer? - correct answer cases of cataracts
or skin cancer
What proves that HCFCs are in the stratosphere? - correct
answer HCFCs found in air samples from the stratosphere.
What makes HFC refrigerants damaging to the
environment? - correct answer They can have very high global
warming potentials.
_______ makes HFO refrigerants less flammable than HC
refrigerants. - correct answer Flourine
Which refrigerant contains chlorine? - correct answer R-12
HFO refrigerants are miscible in _______ lubricants. - correct
answer POE lubricants
, EPA 608
An example of HcFC refrigerant is: ______ - correct answer R-
123
What is being done in the U.S. to stop damage to the
stratospheric ozone layer? - correct answer Eliminating the use
of CFCs and HCFCs refrigerants
EPA regulations require appliances to have _________. -
correct answer a service aperture or process hub
The release of any CFC, HCFC, or HFC refrigerant during
_________ is illegal. - correct answer theft of equipment
____________ is the only EPA SNAP approved "drop in"
replacement for
R-22. - correct answer There are no direct drop-in refrigerant
substitutes
Ester-based oils like POE can be mixed with ________. -
correct answer no other oils
EPA 608 EXAM PRACTICE QUESTIONS AND ANSWERS
Ozone depletion is caused by _______ in HFC
refrigerants. - correct answer chlorine
CFCs and HCFCs ________ making them capable capable
of reaching the stratospheric ozone layer. - correct answer do
not dissolve in water or easily break down in the
atmosphere
According to the Rolanda-Molina theory, ________ are
destroyed by each chlorine atom in the stratosphere. -
correct answer 100,000 ozone molecules
The stratospheric ozone layer protects us from _______. -
correct answer ultraviolet radiation from the sun
,EPA 608
Which health effect increases from loss of the
stratospheric ozone layer? - correct answer cases of cataracts
or skin cancer
What proves that HCFCs are in the stratosphere? - correct
answer HCFCs found in air samples from the stratosphere.
What makes HFC refrigerants damaging to the
environment? - correct answer They can have very high global
warming potentials.
_______ makes HFO refrigerants less flammable than HC
refrigerants. - correct answer Flourine
Which refrigerant contains chlorine? - correct answer R-12
HFO refrigerants are miscible in _______ lubricants. - correct
answer POE lubricants
, EPA 608
An example of HcFC refrigerant is: ______ - correct answer R-
123
What is being done in the U.S. to stop damage to the
stratospheric ozone layer? - correct answer Eliminating the use
of CFCs and HCFCs refrigerants
EPA regulations require appliances to have _________. -
correct answer a service aperture or process hub
The release of any CFC, HCFC, or HFC refrigerant during
_________ is illegal. - correct answer theft of equipment
____________ is the only EPA SNAP approved "drop in"
replacement for
R-22. - correct answer There are no direct drop-in refrigerant
substitutes
Ester-based oils like POE can be mixed with ________. -
correct answer no other oils
