WorksheetsEPA Core Questions
Total questions: 7
Worksheet time: 4mins
1. As of what date did it become unlawful to release Class 1 and Class 2 refrigerants to the atmosphere?
November 14, 1994
July 1, 1993
July 1, 1992
January 1, 1996
2. What is the ozone layer and why is it important to us on Earth?
Thin layer of CFC and HCFC in the atmosphere that filters UV.
Protective layer that shields UV in the Troposphere.
Protective shield for Earth from the sun's harmful ultraviolet(UV) rays in the stratosphere layer that extends about 6 to 30 miles above earth.
Thin layer of R-22 in the atmosphere that filters UV.
3. The atom found in CFC and HCFC refrigerants that destroys ozone in the stratosphere is?
Chlorine
Carbon
Hydrogen
Fluorine
4. What is an ozone molecule made of?
Oxygen and ammonia
Refrigerant
Three oxygen atoms(O3)
Ammonia
5. Which refrigerant is a CFC?
R-22
R-12
R-123
R-134A
6. What is the name of the atom that attacks ozone molecules?
Chlorine and bromine atoms emitted into the atmosphere.
HCFC atoms
CFC atoms
a and b
7. Which refrigerant is a HCFC?
R-134A
R-12
R-123
R-22
