Practice Test GeeksEPA 609 - EPA Section 609 Refrigerant Certification Practice Test
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Refrigerant Types & Properties Flashcards

6 cards from real EPA 609 practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

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  1. What class of refrigerant is R-12 (Freon)?

    Answer: CFC (Chlorofluorocarbon)

    R-12 is a CFC (chlorofluorocarbon), which contains chlorine atoms responsible for its high ozone depletion potential.

  2. What class of refrigerant is R-134a?

    Answer: HFC

    R-134a is an HFC (hydrofluorocarbon), which contains no chlorine and therefore has zero ozone depletion potential.

  3. What is the boiling point of R-134a at atmospheric pressure?

    Answer: -26.3°F (-32.4°C)

    R-134a boils at approximately -26.3°F (-32.4°C) at atmospheric pressure, which allows it to absorb heat efficiently in the evaporator.

  4. Which refrigerant is considered a 'blend' and is NOT approved for MVAC retrofit use by the EPA?

    Answer: R-401A (MP39)

    Refrigerant blends like R-401A are not approved by the EPA's SNAP program for MVAC retrofit and can cause system damage and safety hazards.

  5. What does a refrigerant's GWP (Global Warming Potential) measure?

    Answer: How much heat the refrigerant traps in the atmosphere compared to CO2

    GWP measures how much heat a greenhouse gas traps over 100 years relative to carbon dioxide, which has a GWP of 1.

  6. R-134a has a GWP of approximately:

    Answer: 1,430

    R-134a has a GWP of approximately 1,430, meaning it traps 1,430 times more heat than CO2 over 100 years.