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EPA 608 Type I Practice Test 2 Flashcards

6 cards from real EPA 608 609 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. Type I certification under EPA Section 608 specifically covers technicians servicing which type of equipment?

    Answer: Small appliances — hermetically sealed systems with 5 lbs or less of CFC/HCFC

    Type I certification covers small appliances, defined under EPA Section 608 as household refrigerators, freezers, room air conditioners, dehumidifiers, vending machines, drinking water coolers, and similar equipment that uses 5 pounds or less of CFC or HCFC refrigerant in a hermetically sealed system manufactured and charged at the factory.

  2. What method of refrigerant recovery is typically used for Type I small appliances where the compressor is still operational?

    Answer: System-dependent (passive) recovery using the appliance's own compressor

    For small appliances with operational compressors, EPA allows system-dependent (passive) recovery — using the appliance's own compressor to pump refrigerant into a recovery cylinder. This method is efficient for small charges. If the compressor is not functional, a recovery machine must be used instead. Recovery is always required regardless of charge size.

  3. A household refrigerator typically uses which refrigerant in modern production?

    Answer: R-134a (HFC-134a) or R-600a (isobutane)

    Modern household refrigerators use either R-134a (an HFC with zero ODP) or R-600a (isobutane, a natural hydrocarbon refrigerant with zero ODP and very low GWP). R-12 was phased out of new refrigerators by 1994 due to its high ODP. R-22 is used in air conditioning systems, not refrigerators. R-410A is used in modern air conditioners.

  4. For Type I small appliances, what is the required recovery efficiency when the appliance's compressor is NOT functioning?

    Answer: The system must be evacuated to 4 inches of mercury vacuum

    When a Type I small appliance has an inoperable compressor, the technician must use a recovery machine to evacuate the system to at least 4 inches of mercury (Hg) vacuum. This standard applies because the appliance's compressor cannot assist with recovery, so a more rigorous method is needed to capture the remaining refrigerant effectively.

  5. Which organization certifies recovery equipment used for servicing Type I small appliances?

    Answer: AHRI (Air-Conditioning, Heating, and Refrigeration Institute) certifies recovery equipment under EPA-approved programs

    Recovery and recycling equipment used for EPA Section 608 compliance must be tested and certified by an EPA-approved equipment testing organization. AHRI has administered the certification program for recovery/recycling equipment, testing that equipment meets EPA efficiency standards. Technicians must use only certified equipment to comply with Section 608.

  6. R-600a (isobutane) used as a refrigerant in some small appliances presents which unique safety concern?

    Answer: It is a highly flammable refrigerant (Class A3) requiring special handling precautions

    R-600a (isobutane) is classified as an A3 refrigerant — low toxicity but highly flammable with a low ignition energy. This flammability requires special precautions: no ignition sources near the work area, use of non-sparking tools, and awareness that even small leaks create an explosion risk. Despite small charges (typically 1-3 oz), technicians must treat R-600a with extreme care.