Skillcat EPA 608 Type 1 Review
Exam Study Guide – Practice
Questions with Verified
Answers. GRADED A+. Latest
2026/2027 Update.
Do natural events like volcanic eruptions contribute to chlorine in the
stratosphere? - Answer✔✔-Yes, but they are not the primary source.
What absorbs and reflects harmful UV rays from the sun? - Answer✔✔-Ozone,
but ground level ozone does not.
How does ozone depletion affect humans? - Answer✔✔-Increased risk of skin
cancer and cataracts.
Is there evidence that refrigerants are in the stratosphere? - Answer✔✔-Yes.
What is a true statement about chlorine in the atmosphere? - Answer✔✔-A
single chlorine atom can survive for years.
How many atoms of oxygen does ozone have? - Answer✔✔-3
,Where is the majority of ozone located? - Answer✔✔-In the stratosphere, not
the troposphere.
How many molecules of ozone can three molecules of chlorine destroy? -
Answer✔✔-300,000.
What is the major function of ozone in the stratosphere? - Answer✔✔-To
absorb and reflect UV rays from the sun.
What is the primary source of chlorine in the stratosphere? - Answer✔✔-
Emissions of refrigerant chemicals like CFCs and HCFCs by humans.
What molecule is responsible for ozone layer destruction? - Answer✔✔-
Chlorine.
What are the effects of ozone depletion? - Answer✔✔-Decreasing crop yields.
Which refrigerant chemicals destroy the ozone layer? - Answer✔✔-CFCs and
HCFCs.
Who does ozone depletion affect? - Answer✔✔-People all over the world.
What does the Clean Air Act state about refrigerants that deplete ozone? -
Answer✔✔-It is a violation to purposely vent them.
, Can technicians service equipment containing phased-out refrigerants? -
Answer✔✔-Yes.
Where can technicians obtain refrigerants after they are phased out? -
Answer✔✔-From recovered or reclaimed refrigerant.
Can refrigerant be resold? - Answer✔✔-Yes, if it meets AHRI Standard 700
specifications.
What refrigerants must equipment be certified to recover? - Answer✔✔-CFCs,
HCFCs, and HFCs.
Who can you sell R-22 refrigerant to? - Answer✔✔-A technician or business
with Section 608 Certification.
Can recovered R-12 refrigerant be used in another person's device? -
Answer✔✔-Yes, if it has been reclaimed to AHRI Standard 700 specifications.
When were all CFCs phased out in the United States? - Answer✔✔-1995
When were R-22 and R-142b phased out in the United States? - Answer✔✔-
2020
When will all HCFCs be phased out in the United States? - Answer✔✔-2030
What records must be kept for R-22? - Answer✔✔-Type, dates, and quantity of
refrigerant.
Exam Study Guide – Practice
Questions with Verified
Answers. GRADED A+. Latest
2026/2027 Update.
Do natural events like volcanic eruptions contribute to chlorine in the
stratosphere? - Answer✔✔-Yes, but they are not the primary source.
What absorbs and reflects harmful UV rays from the sun? - Answer✔✔-Ozone,
but ground level ozone does not.
How does ozone depletion affect humans? - Answer✔✔-Increased risk of skin
cancer and cataracts.
Is there evidence that refrigerants are in the stratosphere? - Answer✔✔-Yes.
What is a true statement about chlorine in the atmosphere? - Answer✔✔-A
single chlorine atom can survive for years.
How many atoms of oxygen does ozone have? - Answer✔✔-3
,Where is the majority of ozone located? - Answer✔✔-In the stratosphere, not
the troposphere.
How many molecules of ozone can three molecules of chlorine destroy? -
Answer✔✔-300,000.
What is the major function of ozone in the stratosphere? - Answer✔✔-To
absorb and reflect UV rays from the sun.
What is the primary source of chlorine in the stratosphere? - Answer✔✔-
Emissions of refrigerant chemicals like CFCs and HCFCs by humans.
What molecule is responsible for ozone layer destruction? - Answer✔✔-
Chlorine.
What are the effects of ozone depletion? - Answer✔✔-Decreasing crop yields.
Which refrigerant chemicals destroy the ozone layer? - Answer✔✔-CFCs and
HCFCs.
Who does ozone depletion affect? - Answer✔✔-People all over the world.
What does the Clean Air Act state about refrigerants that deplete ozone? -
Answer✔✔-It is a violation to purposely vent them.
, Can technicians service equipment containing phased-out refrigerants? -
Answer✔✔-Yes.
Where can technicians obtain refrigerants after they are phased out? -
Answer✔✔-From recovered or reclaimed refrigerant.
Can refrigerant be resold? - Answer✔✔-Yes, if it meets AHRI Standard 700
specifications.
What refrigerants must equipment be certified to recover? - Answer✔✔-CFCs,
HCFCs, and HFCs.
Who can you sell R-22 refrigerant to? - Answer✔✔-A technician or business
with Section 608 Certification.
Can recovered R-12 refrigerant be used in another person's device? -
Answer✔✔-Yes, if it has been reclaimed to AHRI Standard 700 specifications.
When were all CFCs phased out in the United States? - Answer✔✔-1995
When were R-22 and R-142b phased out in the United States? - Answer✔✔-
2020
When will all HCFCs be phased out in the United States? - Answer✔✔-2030
What records must be kept for R-22? - Answer✔✔-Type, dates, and quantity of
refrigerant.
