EPA Section 608 Exam |Questions with 100%
Correct Answers | Updated & Verified
What is an HFC? - ✔️✔️A fluorocarbon that contains no chlorine.
Which refrigerants are HFC's? - ✔️✔️R-134a,404a,407c,410a.
What is the ODP of the HFC refrigerant? - ✔️✔️Zero.
Which refrigerants contain chlorine? - ✔️✔️CFC's and HCFC's.
Which refrigerants have high ODP? - ✔️✔️CFC's.
Which refrigerants have low ODP? - ✔️✔️HCFC's, HFC's are zero.
What is an azeotrope refrigerant? - ✔️✔️A mixture of two or more compounds where the
mixture behaves like a single chemical.
Is one of the components of R-500 a CFC? - ✔️✔️Yes
Does stratospheric ozone help or hurt the work of the earth's protective shield? - ✔️✔️It helps.
What chemical in the stratosphere tells us ozone depletion is occurring? - ✔️✔️Chlorine-
monoxide.
How do we know the chlorine in the stratosphere is coming from CFC's? - ✔️✔️The increase in
chlorine and fluorine present in the stratosphere, matches the increase in emissions of CFC's.
,How do we know CFC's get to the stratosphere? - ✔️✔️From high altitude air sampling
measurements.
What role does the ozone layer play in protecting the earth? - ✔️✔️It blocks much of the harmful
ultraviolet radiation (uv-b).
What are the effects on health from increased ultraviolet radiation? - ✔️✔️Skin cancer, cataracts,
human immunity is reduced.
What are the effects on the environment? - ✔️✔️Timber growth is reduced, crop yields lowered,
marine life and the food chain are impaired.
Is ozone depletion a problem for the United States only or a global problem? - ✔️✔️A global
problem.
What is the Montreal Protocol? - ✔️✔️A treaty that called for the reduction of production of
CFC's.
The Montreal Protocol calls for the regulation of what chemicals? - ✔️✔️Ozone depleting
compounds, CFC's, HCFC's, and Halons.
On what date was the production and importation of all CFC's phased out? - ✔️✔️In the U.S.,
after December 31, 1995.
Where will we get replacements? - ✔️✔️Through recovery of existing refrigerants.
What steps are called for by the Clean Air Act? - ✔️✔️Taxes on production and use, standards set
for the recovery of refrigerants.
, What is prohibited by the Clean Air Act? - ✔️✔️Venting.
Do state and local laws have priority over federal law? Can they be less strict? - ✔️✔️No. Cities or
states can create their own laws but they must be at least as strict as federal laws.
To prevent damage to the ozone layer, the U.S. is making laws to capture the CFC's now in use.
What else does the new law do to restrict the release of CFC's? - ✔️✔️Allows states and
municipalities to create their own laws to prevent and monitor the release of CFC and HCFC
materials into the atmosphere.
By recovering refrigerants, we ensure adequate supplies and prevent venting. What else does
the recovery of refrigerants accomplish? - ✔️✔️Prevents stratospheric ozone depletion.
The Clean Air Act phases out CFC/HCFC production and prohibits venting. What else does it
require? - ✔️✔️Standards to be set for recovery of all refrigerants prior to appliance service and
disposal.
Falsifying or failing to keep required records, failing to reach required evacuation levels and
knowingly releasing CFC or HCFC refrigerants, are a violations of the Clean Air Act. What activity
with a substitute refrigerant is also a violation? - ✔️✔️Knowingly venting CFC's, HCFC's and their
substitutes.
Which refrigerants must be recovered prior to opening a system? - ✔️✔️All refrigerants as of 11-
15-1995.
What releases of a CFC and HCFC are violations of the Clean Air Act? - ✔️✔️Any knowingly
vented refrigerants.
On what date did it become illegal to vent CFC and HCFC refrigerants? - ✔️✔️July 1, 1992.
Correct Answers | Updated & Verified
What is an HFC? - ✔️✔️A fluorocarbon that contains no chlorine.
Which refrigerants are HFC's? - ✔️✔️R-134a,404a,407c,410a.
What is the ODP of the HFC refrigerant? - ✔️✔️Zero.
Which refrigerants contain chlorine? - ✔️✔️CFC's and HCFC's.
Which refrigerants have high ODP? - ✔️✔️CFC's.
Which refrigerants have low ODP? - ✔️✔️HCFC's, HFC's are zero.
What is an azeotrope refrigerant? - ✔️✔️A mixture of two or more compounds where the
mixture behaves like a single chemical.
Is one of the components of R-500 a CFC? - ✔️✔️Yes
Does stratospheric ozone help or hurt the work of the earth's protective shield? - ✔️✔️It helps.
What chemical in the stratosphere tells us ozone depletion is occurring? - ✔️✔️Chlorine-
monoxide.
How do we know the chlorine in the stratosphere is coming from CFC's? - ✔️✔️The increase in
chlorine and fluorine present in the stratosphere, matches the increase in emissions of CFC's.
,How do we know CFC's get to the stratosphere? - ✔️✔️From high altitude air sampling
measurements.
What role does the ozone layer play in protecting the earth? - ✔️✔️It blocks much of the harmful
ultraviolet radiation (uv-b).
What are the effects on health from increased ultraviolet radiation? - ✔️✔️Skin cancer, cataracts,
human immunity is reduced.
What are the effects on the environment? - ✔️✔️Timber growth is reduced, crop yields lowered,
marine life and the food chain are impaired.
Is ozone depletion a problem for the United States only or a global problem? - ✔️✔️A global
problem.
What is the Montreal Protocol? - ✔️✔️A treaty that called for the reduction of production of
CFC's.
The Montreal Protocol calls for the regulation of what chemicals? - ✔️✔️Ozone depleting
compounds, CFC's, HCFC's, and Halons.
On what date was the production and importation of all CFC's phased out? - ✔️✔️In the U.S.,
after December 31, 1995.
Where will we get replacements? - ✔️✔️Through recovery of existing refrigerants.
What steps are called for by the Clean Air Act? - ✔️✔️Taxes on production and use, standards set
for the recovery of refrigerants.
, What is prohibited by the Clean Air Act? - ✔️✔️Venting.
Do state and local laws have priority over federal law? Can they be less strict? - ✔️✔️No. Cities or
states can create their own laws but they must be at least as strict as federal laws.
To prevent damage to the ozone layer, the U.S. is making laws to capture the CFC's now in use.
What else does the new law do to restrict the release of CFC's? - ✔️✔️Allows states and
municipalities to create their own laws to prevent and monitor the release of CFC and HCFC
materials into the atmosphere.
By recovering refrigerants, we ensure adequate supplies and prevent venting. What else does
the recovery of refrigerants accomplish? - ✔️✔️Prevents stratospheric ozone depletion.
The Clean Air Act phases out CFC/HCFC production and prohibits venting. What else does it
require? - ✔️✔️Standards to be set for recovery of all refrigerants prior to appliance service and
disposal.
Falsifying or failing to keep required records, failing to reach required evacuation levels and
knowingly releasing CFC or HCFC refrigerants, are a violations of the Clean Air Act. What activity
with a substitute refrigerant is also a violation? - ✔️✔️Knowingly venting CFC's, HCFC's and their
substitutes.
Which refrigerants must be recovered prior to opening a system? - ✔️✔️All refrigerants as of 11-
15-1995.
What releases of a CFC and HCFC are violations of the Clean Air Act? - ✔️✔️Any knowingly
vented refrigerants.
On what date did it become illegal to vent CFC and HCFC refrigerants? - ✔️✔️July 1, 1992.
