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EPA 608 CERTIFICATION EXAM- QWIK STUDY GUIDE QUESTIONS AND ANSWERS
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EPA 608 CERTIFICATION EXAM- QWIK STUDY GUIDE QUESTIONS AND ANSWERS
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EPA 608 CERTIFICATION EXAM- QWIKSTUDY GUIDE QUESTIONS AND
ANSWERS
Ozone stratosphere above the earth consists of molecules containing... - Answer-3
oxygen atoms (O3)
The oxygen we breathe contains how many atoms in each molecule? - Answer-two
atoms (O2)
The ozone layer consists of ozone in the stratosphere at an altitude of between
__________above the earth - Answer-7 and 28 miles
the ozone layer is formed by what? - Answer-Ultra violet light from the sun acting on
oxygen molecules,absorbs and scatter UV light from the sun
What does the Ozone layer do? - Answer-prevents harmful amounts of UV light from
reaching Earth.
What is another name for the ozone layer? - Answer-ozone shield
Ozone in the lower atmosphere where we breathe is caused by what? - Answer-UV
radiation from the sun acting on smog and air pollutants
Ozone at ground level is what? - Answer-Harmful pollutant
Ozone in the stratosphere is what? - Answer-Protective Shield
The ability of a substance to destroy ozone in the stratosphere is referred to as the
what? - Answer-Ozone depletion potential (ODP)
Chlorine in refrigerants causes what? - Answer-stratospheric ozone depletion
The rise in the amount of chlorine measured in the stratosphere matches what? -
Answer-The rise in ozone-depleting emissions of CFC's and HCFC's over the same
period
According to the Roland-Molina Theory how many ozone molecules are destroyed by
each chlorine atom? - Answer-100,000
What happens when ozone depletion occurs? - Answer-More UV radiation penetrates to
the earths surface.
, The rise in the amount of chlorine measured in the stratosphere over the same time
matches what? - Answer-The amount of fluorine
The chlorine in the stratosphere is believed to come primarily from what? - Answer-
CFC's & HCFC's
Stratospheric ozone protection is a - Answer-global problem
What is the Montreal Protocol? - Answer-and international treaty that addresses limiting
ozone depleting substances.
Increased concentration in the stratosphere of chlorine and bromine pose what? -
Answer-substantial risks of ozone depletion
The Ozone layer - Answer-protects Earth from harmful ultraviolet rays
What are some side effects of increased UV radiation? - Answer-Skin Cancer,
cataracts, suppression of immune system, reduced crop yields, damage to marine life,
increased degradation of polymers, climate change
What is the SNAP Program? - Answer-The Significant New Alternatives Policy identifies
refrigerants with lower overall risks to human health and the environment.
Technicians who violate the Clean Air Act provisions can be - Answer-fined up to
$44,539 per day per violation, lose their certification, and face federal charges
Knowingly releasing refrigerants during the service, maintenance, repair or disposal of
appliances is... - Answer-illegal
Chlorofluorocarbons (CFCs) contain what elements? - Answer-chlorine, fluorine, carbon
Which refrigerants have the highest ODP - Answer-CFC's
What makes CFC's chemically stable? - Answer-They contain no hydrogen
What makes CFC's damaging to the ozone? - Answer-They contain chlorine
What do CFC's & HCFC's do in water? - Answer-They do not dissolve or breakdown
What were some commonly used CFC's before being banned? - Answer-R-11 & R-12
Hydrochloroflurocarbons (HCFCs) contain what elements? - Answer-Hydrogen,
chlorine, fluorine, carbon
What makes HCFC's less damaging to the environment than CFC's? - Answer-They
contain hydrogen which makes them less stable and decompose faster
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