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EPA 608 Exam Practice Questions 1-100
Questions and Correct Answers/ Latest
Update / Already Graded
Ozone depletion is caused by _______ in HFC refrigerants.
Ans: chlorine
CFCs and HCFCs ________ making them capable capable of reaching
the stratospheric ozone layer.
Ans: 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.
Ans: 100,000 ozone molecules
The stratospheric ozone layer protects us from _______.
Ans: ultraviolet radiation from the sun
Which health effect increases from loss of the stratospheric ozone
layer?
All rights reserved © 2025/ 2026 |
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Ans: cases of cataracts or skin cancer
What proves that HCFCs are in the stratosphere?
Ans: HCFCs found in air samples from the stratosphere.
What makes HFC refrigerants damaging to the environment?
Ans: They can have very high global warming potentials.
_______ makes HFO refrigerants less flammable than HC refrigerants.
Ans: Flourine
Which refrigerant contains chlorine?
Ans: R-12
HFO refrigerants are miscible in _______ lubricants.
Ans: POE lubricants
An example of HcFC refrigerant is: ______
Ans: R-123
All rights reserved © 2025/ 2026 |
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What is being done in the U.S. to stop damage to the stratospheric
ozone layer?
Ans: Eliminating the use of CFCs and HCFCs refrigerants
EPA regulations require appliances to have _________.
Ans: a service aperture or process hub
The release of any CFC, HCFC, or HFC refrigerant during _________ is
illegal.
Ans: theft of equipment
____________ is the only EPA SNAP approved "drop in" replacement
for
R-22.
Ans: There are no direct drop-in refrigerant substitutes
Ester-based oils like POE can be mixed with ________.
Ans: no other oils
All rights reserved © 2025/ 2026 |
EPA 608 Exam Practice Questions 1-100
Questions and Correct Answers/ Latest
Update / Already Graded
Ozone depletion is caused by _______ in HFC refrigerants.
Ans: chlorine
CFCs and HCFCs ________ making them capable capable of reaching
the stratospheric ozone layer.
Ans: 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.
Ans: 100,000 ozone molecules
The stratospheric ozone layer protects us from _______.
Ans: ultraviolet radiation from the sun
Which health effect increases from loss of the stratospheric ozone
layer?
All rights reserved © 2025/ 2026 |
, Page |2
Ans: cases of cataracts or skin cancer
What proves that HCFCs are in the stratosphere?
Ans: HCFCs found in air samples from the stratosphere.
What makes HFC refrigerants damaging to the environment?
Ans: They can have very high global warming potentials.
_______ makes HFO refrigerants less flammable than HC refrigerants.
Ans: Flourine
Which refrigerant contains chlorine?
Ans: R-12
HFO refrigerants are miscible in _______ lubricants.
Ans: POE lubricants
An example of HcFC refrigerant is: ______
Ans: R-123
All rights reserved © 2025/ 2026 |
, Page |3
What is being done in the U.S. to stop damage to the stratospheric
ozone layer?
Ans: Eliminating the use of CFCs and HCFCs refrigerants
EPA regulations require appliances to have _________.
Ans: a service aperture or process hub
The release of any CFC, HCFC, or HFC refrigerant during _________ is
illegal.
Ans: theft of equipment
____________ is the only EPA SNAP approved "drop in" replacement
for
R-22.
Ans: There are no direct drop-in refrigerant substitutes
Ester-based oils like POE can be mixed with ________.
Ans: no other oils
All rights reserved © 2025/ 2026 |
