Practice Test Geeks(313D) Residential Air Conditioning Systems Mechanic Certification Practice Test
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Refrigerant Handling and Recovery Flashcards

7 cards from real 313D practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 Refrigerant Handling and Recovery flashcards as text

  1. Under EPA Section 608, what is the maximum allowable leak rate for a residential comfort cooling system containing 50 or more pounds of refrigerant before repair is required?

    Answer: 15% per year

    EPA Section 608 sets the leak rate threshold for comfort cooling appliances at 15% of the total charge per year before a repair is mandated.

  2. Which refrigerant cylinder color code is used to identify R-410A?

    Answer: Rose/pink

    R-410A cylinders are color-coded rose/pink per ARI Standard 700 to distinguish them from other refrigerants.

  3. A technician recovers refrigerant into a recovery cylinder that is already at 80% liquid capacity. What should be done next?

    Answer: Stop recovery and use a new or properly sized cylinder

    Recovery cylinders must never be filled beyond 80% liquid capacity to allow for thermal expansion and prevent dangerous pressure buildup.

  4. What is the primary purpose of the desiccant filter-drier in a recovery machine?

    Answer: To remove moisture and contaminants from recovered refrigerant

    The filter-drier in a recovery machine removes moisture and particulate contaminants to protect the machine's compressor and valves.

  5. Which of the following refrigerants is classified as an A2L (mildly flammable) refrigerant?

    Answer: R-32

    R-32 is classified A2L — lower flammability limit above 3.5% by volume and a burning velocity ≤10 cm/s — unlike the A1 refrigerants R-22 and R-410A.

  6. When recovering refrigerant from a system with a known motor burn, the technician should use:

    Answer: Recovery equipment equipped with an acid-rated filter to capture contaminants

    Acid-laden refrigerant from a burned compressor requires an acid-rated filter in the recovery machine to protect its components and prevent cross-contamination.

  7. According to EPA regulations, technicians must keep records of refrigerant recovery for commercial appliances containing more than how many pounds of refrigerant?

    Answer: 20 pounds

    EPA Section 608 requires that service records be kept for appliances containing more than 20 pounds of refrigerant, documenting the amount recovered and disposed of.