SKILLCAT EPA 608 TYPE 1 REVIEW 230 QUESTIONS
& CORRECT ANSWERS LATEST 2025
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.
What is Section 608 of the Clean Air Act? - ANSWER-Federal Law.
What must state and local regulations do in relation to federal CAA regulations? -
ANSWER-They must be followed and may be stricter.
What does the Venting Prohibition require before opening or servicing
equipment? - ANSWER-Recover affected refrigerant.
& CORRECT ANSWERS LATEST 2025
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.
What is Section 608 of the Clean Air Act? - ANSWER-Federal Law.
What must state and local regulations do in relation to federal CAA regulations? -
ANSWER-They must be followed and may be stricter.
What does the Venting Prohibition require before opening or servicing
equipment? - ANSWER-Recover affected refrigerant.
