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. During system-dependent (passive) recovery, refrigerant is transferred using:

    Answer: The system's own compressor to push refrigerant into recovery cylinders

    System-dependent recovery uses the appliance's own compressor to pump refrigerant into recovery cylinders without an external machine.

  2. What evacuation level is required before opening a system for major repairs on equipment manufactured after November 15, 1993, using a recovery machine manufactured after that same date?

    Answer: 4 inches Hg vacuum

    For equipment manufactured after November 15, 1993, using a post-1993 recovery machine, the required evacuation level before major repairs is 4 inches of mercury vacuum.

  3. R-22 refrigerant recovered from a system and later found to be contaminated must be:

    Answer: Reclaimed to AHRI 700 purity standards or sent to a certified reclaimer

    Contaminated refrigerant must be reclaimed to AHRI 700 purity standards by an EPA-certified reclaimer before it can be resold or reused in a different system.

  4. A recovery cylinder must be hydrostatically tested and replaced or retested no more than how many years after the original test date stamped on the collar?

    Answer: 5 years

    DOT-compliant recovery cylinders must be re-qualified (hydrostatically retested) every 5 years from the date stamped on the collar.

  5. What is the safest procedure when connecting manifold gauge hoses to recover refrigerant from a potentially pressurized system?

    Answer: Attach hoses with valves closed, then slowly open system service valves

    Connecting hoses with manifold valves closed prevents accidental release of refrigerant and controls the rate at which system pressure enters the hoses.

  6. Which document must a refrigerant reclaimation facility provide to verify that recovered refrigerant meets AHRI 700 purity standards?

    Answer: Certificate of Reclaim (analysis report)

    A certified reclaimer issues a certificate of reclaim (or analysis report) confirming the refrigerant meets AHRI Standard 700 purity requirements.

  7. When transferring liquid refrigerant from a recovery cylinder to a system, the technician should:

    Answer: Invert the cylinder or use the liquid valve to push liquid into the low side

    Inverting the cylinder or using the dip-tube liquid valve ensures liquid refrigerant flows out; connecting to the high side helps push the charge into the system.