EPA 608 HVAC Certification Practice Test

Free 5-question sample test with instant feedback. See how ready you are.

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Sample Questions

Question 1

In which layer of the atmosphere is the protective ozone layer located?

Answer: The stratosphere, approximately 10 to 30 miles above Earth's surface.

Question 2

What harmful type of solar radiation does the stratospheric ozone layer primarily absorb?

Answer: Ultraviolet (UV-B) radiation from the sun.

Question 3

What is the chemical formula for ozone?

Answer: O3 — ozone consists of three oxygen atoms bonded together.

Question 4

Which atom released from CFCs is primarily responsible for destroying stratospheric ozone?

Answer: Chlorine (Cl) atoms catalytically destroy ozone molecules in the stratosphere.

Question 5

What is the Ozone Depletion Potential (ODP) of CFC-12?

Answer: CFC-12 has an ODP of 1.0, which serves as the baseline reference value.