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SkillCat EPA 608 ACTUAL EXAM
(241+ Ques & Ans) with () Questions and
Verified Rationalized Answers, 100% Guarantee Pass
This Document contains;
Prose1
>(241+ Ques & Ans)
> Questions and Verified Rationalized Answers
>100% Guarantee Pass
,https://www.stuvia.com/user/Prose1
1. As technicians we must stay up to date on:
...Ans>>>Federal, state, and local law
Explanation:
Technicians who handle refrigerants must follow environmental laws at all levels.
The EPA sets national regulations, but state and local governments may add stricter rules on
refrigerant use, disposal, and record-keeping. Staying current prevents violations and ensures
responsible environmental practices.
2. For universal certification you will receive how many questions?
...Ans>>>100
Explanation:
The EPA Universal Certification Exam contains 100 multiple-choice questions:
25 Core questions
25 Type I
25 Type II
25 Type III
You must pass all four sections to become Universal Certified, allowing work on all appliance
types.
3. What is the passing grade for all EPA certifications?
...Ans>>>70%
Explanation:
To pass, you must score at least 70% in each section (Core, Type I, II, and III).
Failing one section means you only need to retake that part, not the entire exam.
4. True or False: You must memorize all regulations because they will stay the same
forever.
...Ans>>>False
Explanation:
EPA and environmental regulations change regularly as new refrigerants, safety measures, and
environmental findings emerge. Technicians must review updates from the EPA and state agencies to
stay compliant.
,5. Can chlorine from the environment come from natural resources such as volcanoes?
...Ans>>>Yes, but they are not the primary source
Explanation:
While volcanoes and oceans release some natural chlorine, these compounds don’t reach the
stratosphere easily. The major source of chlorine causing ozone depletion is man-made refrigerants
such as CFCs and HCFCs.
6. True or False: Ground-level ozone is what reflects and absorbs harmful UV rays from
the sun.
...Ans>>>False
Explanation:
Stratospheric ozone (the “good ozone”) protects the Earth by absorbing harmful UV radiation.
Ground-level ozone (the “bad ozone”) is an air pollutant that forms from vehicle emissions and sunlight
— it harms lungs and plants rather than protecting the Earth.
7. In which way does ozone depletion affect humans?
...Ans>>>Increased risk of skin cancer and cataracts
Explanation:
When the ozone layer thins, more ultraviolet (UV) radiation reaches Earth’s surface. This increases the
risk of skin cancer, eye cataracts, and immune system problems in humans.
8. Is there evidence that refrigerants are in the stratosphere?
...Ans>>>Yes
Explanation:
Research by NASA and the World Meteorological Organization confirms that CFCs, HCFCs, and related
refrigerants have been detected in the stratosphere, proving that they rise from the Earth’s surface
and contribute to ozone depletion.
9. One molecule of chlorine can destroy how many molecules of ozone?
...Ans>>>100,000
Explanation:
A single chlorine atom acts as a catalyst in ozone destruction. It can react with and destroy up to
100,000 ozone molecules before being deactivated. This makes even small refrigerant leaks very
harmful to the ozone layer.
, 10. Ozone has how many oxygen atoms?
...Ans>>>3
Explanation:
Ozone’s chemical formula is O₃, meaning it contains three oxygen atoms.
In contrast, the oxygen we breathe (O₂) has only two oxygen atoms.
11. True or False: The majority of the ozone is located in the troposphere.
...Ans>>>False
Explanation:
Most ozone exists in the stratosphere, forming the ozone layer that shields the planet from UV rays.
The troposphere (where we live and breathe) contains only small amounts of ozone — and most of it is
pollution.
12. How many molecules of ozone can three molecules of chlorine destroy?
...Ans>>>300,000
Explanation:
If one chlorine atom destroys 100,000 ozone molecules, then three chlorine atoms can destroy
300,000 ozone molecules.
This highlights how powerful chlorine is in damaging the ozone layer even in small amounts.
13. What is the major function of ozone in the stratosphere?
...Ans>>>Absorb and reflect UV rays from the sun
Explanation:
The ozone layer acts like Earth’s sunscreen. It absorbs and reflects harmful ultraviolet radiation,
preventing excessive UV exposure that can harm humans, animals, and plants.
14. What is the primary source of chlorine in the stratosphere?
...Ans>>>Emissions of refrigerants by humans, such as CFCs and HCFCs
Explanation:
CFCs (Chlorofluorocarbons) and HCFCs (Hydrochlorofluorocarbons) were widely used in air
conditioners, refrigerators, and aerosol sprays.
When released, they rise into the stratosphere, where UV light breaks them apart, releasing chlorine
atoms that destroy ozone.
SkillCat EPA 608 ACTUAL EXAM
(241+ Ques & Ans) with () Questions and
Verified Rationalized Answers, 100% Guarantee Pass
This Document contains;
Prose1
>(241+ Ques & Ans)
> Questions and Verified Rationalized Answers
>100% Guarantee Pass
,https://www.stuvia.com/user/Prose1
1. As technicians we must stay up to date on:
...Ans>>>Federal, state, and local law
Explanation:
Technicians who handle refrigerants must follow environmental laws at all levels.
The EPA sets national regulations, but state and local governments may add stricter rules on
refrigerant use, disposal, and record-keeping. Staying current prevents violations and ensures
responsible environmental practices.
2. For universal certification you will receive how many questions?
...Ans>>>100
Explanation:
The EPA Universal Certification Exam contains 100 multiple-choice questions:
25 Core questions
25 Type I
25 Type II
25 Type III
You must pass all four sections to become Universal Certified, allowing work on all appliance
types.
3. What is the passing grade for all EPA certifications?
...Ans>>>70%
Explanation:
To pass, you must score at least 70% in each section (Core, Type I, II, and III).
Failing one section means you only need to retake that part, not the entire exam.
4. True or False: You must memorize all regulations because they will stay the same
forever.
...Ans>>>False
Explanation:
EPA and environmental regulations change regularly as new refrigerants, safety measures, and
environmental findings emerge. Technicians must review updates from the EPA and state agencies to
stay compliant.
,5. Can chlorine from the environment come from natural resources such as volcanoes?
...Ans>>>Yes, but they are not the primary source
Explanation:
While volcanoes and oceans release some natural chlorine, these compounds don’t reach the
stratosphere easily. The major source of chlorine causing ozone depletion is man-made refrigerants
such as CFCs and HCFCs.
6. True or False: Ground-level ozone is what reflects and absorbs harmful UV rays from
the sun.
...Ans>>>False
Explanation:
Stratospheric ozone (the “good ozone”) protects the Earth by absorbing harmful UV radiation.
Ground-level ozone (the “bad ozone”) is an air pollutant that forms from vehicle emissions and sunlight
— it harms lungs and plants rather than protecting the Earth.
7. In which way does ozone depletion affect humans?
...Ans>>>Increased risk of skin cancer and cataracts
Explanation:
When the ozone layer thins, more ultraviolet (UV) radiation reaches Earth’s surface. This increases the
risk of skin cancer, eye cataracts, and immune system problems in humans.
8. Is there evidence that refrigerants are in the stratosphere?
...Ans>>>Yes
Explanation:
Research by NASA and the World Meteorological Organization confirms that CFCs, HCFCs, and related
refrigerants have been detected in the stratosphere, proving that they rise from the Earth’s surface
and contribute to ozone depletion.
9. One molecule of chlorine can destroy how many molecules of ozone?
...Ans>>>100,000
Explanation:
A single chlorine atom acts as a catalyst in ozone destruction. It can react with and destroy up to
100,000 ozone molecules before being deactivated. This makes even small refrigerant leaks very
harmful to the ozone layer.
, 10. Ozone has how many oxygen atoms?
...Ans>>>3
Explanation:
Ozone’s chemical formula is O₃, meaning it contains three oxygen atoms.
In contrast, the oxygen we breathe (O₂) has only two oxygen atoms.
11. True or False: The majority of the ozone is located in the troposphere.
...Ans>>>False
Explanation:
Most ozone exists in the stratosphere, forming the ozone layer that shields the planet from UV rays.
The troposphere (where we live and breathe) contains only small amounts of ozone — and most of it is
pollution.
12. How many molecules of ozone can three molecules of chlorine destroy?
...Ans>>>300,000
Explanation:
If one chlorine atom destroys 100,000 ozone molecules, then three chlorine atoms can destroy
300,000 ozone molecules.
This highlights how powerful chlorine is in damaging the ozone layer even in small amounts.
13. What is the major function of ozone in the stratosphere?
...Ans>>>Absorb and reflect UV rays from the sun
Explanation:
The ozone layer acts like Earth’s sunscreen. It absorbs and reflects harmful ultraviolet radiation,
preventing excessive UV exposure that can harm humans, animals, and plants.
14. What is the primary source of chlorine in the stratosphere?
...Ans>>>Emissions of refrigerants by humans, such as CFCs and HCFCs
Explanation:
CFCs (Chlorofluorocarbons) and HCFCs (Hydrochlorofluorocarbons) were widely used in air
conditioners, refrigerators, and aerosol sprays.
When released, they rise into the stratosphere, where UV light breaks them apart, releasing chlorine
atoms that destroy ozone.
