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EPA 608 Core Test 2024 Questions and Answers 2024 / 2025 (Verified Answers by Expert)
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EPA 608 Core Test 2024 Questions and Answers 2024 / 2025 (Verified Answers by Expert)
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EPA 608 Core Test Sample Questions.pdf file:///C:/Users/HP/Desktop/TYPA%20NEW/EPA%20608%20Core%EPA 608 Core Test Questions & Answers
1. As of what date did it become unlawful to release Class 1 and Class IIrefrigerants
to the atmosphere?
a. July 1, 1992
b. July 1, 1993
c. November 14, 1994
d. January 1, 1996
ANS a. July 1, 1992
2. What is the ozone layer and why is it important to us on Earth?
a. Thin layer of R-22 in the atmosphere that filters UV.
b. Protective shield for Earth from the sun's harmful ultraviolent (UV) rays in
the stratosphere layer that extends about 6 to 30 miles aboveearth
c. Thin layer of CFC and HCFC in the atmosphere that filters UV.
d. Protective layer that shields UV in the Troposphere
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ANS b. Protective shield forEarth from the sun's harmful ultraviolent (UV)
rays in the stratosphere layer that extends about 6 to 30 miles aboveearth
3. The atom found in CFC and HCFC refrigerants that destroys ozone in the
stratosphere is?
a. Fluorine
b. Carbon
c. Hydrogen
d. Chlorine
ANS d. Chlorine
4. What is an ozone molecule made of?
a. Refrigerant
b. Ammonia
c. Three oxygen atoms (O3).
d. Oxygen and ammonia.
ANS Three oxygen atoms (O3).
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5. Which refrigerant is a CFC?
a. R-134A
b. R-123
c. R-22
d. R-12
ANS d. R-12
6. What is the name of the atom that attacks ozone molecules?
a. CFC atoms
b. HCFC atoms
c. Chlorine and bromine atoms emitted into the atmosphere
d. a and b
ANS c. Chlorine and bromine atoms emitted into the atmosphere
7. Which refrigerant is a HFC?
a. R-134A
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b. R-123
c. R-22
d. R-12
ANS a. R-134A
8. Describe how one Chlorine atom can destroy 100,000 ozone molecules.
a. Chlorine releases one of the oxygen atoms and forms two O2 oxygenmolecules,
leaving the chlorine molecule free to attack another
ozone molecule and repeat the process.
b. Chlorine locks up the ozone molecule and then and then goes afteranother.
c. Chlorine converts the ozone to bromine and then attacks more ozonemolecules.
d. Chlorine can bleach 100,000 ozone molecules before it weakens.
ANS a.Chlorinereleases one of the oxygen atoms and forms two O2 oxygen molecules, leaving
thechlorine molecule free to attack another
ozone molecule and repeat the process.
9. Which refrigerant contains no chlorine?
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