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EPA 608 study material including (Core, type 1, 2 and 3) Verified Solutions

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EPA 608 study material including (Core, type 1, 2 and 3) Verified Solutions 1. To optimize performance, where should a vacuum pump be placed? - It should be connected as far from the pump as possible. 2. What is the benefit of using a high-capacity vacuum pump with short, large-diameter hose...

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  • August 6, 2024
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  • 2024/2025
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EPA 608 study material including (Core, type 1, 2 and 3) Verified
Solutions


1. To optimize performance, where should a vacuum pump be placed?

- ✅ It should be connected as far from the pump as possible.



2. What is the benefit of using a high-capacity vacuum pump with short, large-diameter hoses?

- ✅ This combination significantly reduces emissions, minimizes pressure drop, and shortens
evacuation and dehydration times.



3. What is the molecular composition of ozone?

- ✅ Ozone is made up of three oxygen atoms.



4. How many ozone molecules can a single chlorine atom destroy?

- ✅ One chlorine atom can destroy up to 100,000 ozone molecules.



5. What is a notable characteristic of CFCs regarding water?

- ✅ CFCs do not dissolve in water and do not decompose into water-soluble compounds, meaning
they cannot be washed out of the lower atmosphere.



6. What does ODP stand for?

- ✅ Ozone Depletion Potential.



7. What is an azeotrope in the context of refrigerants?

- ✅ It refers to a mixture that behaves like a single chemical, acting as a new refrigerant.



8. Do HFCs have an impact on the ozone layer?

- ✅ HFCs do not harm the ozone in the stratosphere.

, 9. What significant action was taken by the United States regarding CFC production and importation in
1992?

- ✅ The U.S. mandated the cessation of all CFC production and importation after December 31, 1995.



10. According to the Clean Air Act, when were individuals prohibited from venting Class 1 or Class 2
substances?

- ✅ The ban took effect on July 1, 1992.



11. What refrigerants fall under Class 1?

- ✅ CFCs.



12. What refrigerants are classified as Class 2?

- ✅ HCFCs.



13. When did it become illegal to vent substitutes for CFCs and HCFCs?

- ✅ This prohibition began on November 15, 1995.



14. What defines an appliance under these regulations?

- ✅ An appliance is any device that contains and uses a Class 1 or Class 2 refrigerant for household or
commercial purposes.



15. What type of recovery equipment is classified as 'active'?

- ✅ Self-contained recovery equipment.



16. What is 'passive' recovery equipment?

- ✅ System-dependent recovery equipment.



17. Who is allowed to purchase CFC-12 in containers smaller than 20 pounds?

- ✅ Only technicians certified under Section 609.

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