Practice Test Geeks(CAR) Certified Appliance Recycler Practice Test
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CAR Refrigerant Recovery & Handling Flashcards

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

Read the first 6 CAR Refrigerant Recovery & Handling flashcards as text

  1. Which type of recovery method is recommended for a system with a failed or seized compressor?

    Answer: Passive (system-dependent) recovery using an external recovery machine in vapor-pull mode

    When the system compressor cannot run, an external recovery machine must pull refrigerant in vapor-pull mode since no internal pressure assistance is available.

  2. HFO refrigerants such as R-1234yf have a Global Warming Potential (GWP) compared to R-134a that is:

    Answer: Much lower (GWP < 1 vs. 1,430 for R-134a)

    R-1234yf has a GWP of less than 1, making it a near-zero climate impact replacement for R-134a which has a GWP of 1,430.

  3. During refrigerant recovery, oil separated from the refrigerant in the recovery machine should be:

    Answer: Collected separately and disposed of as hazardous waste if contaminated

    Compressor oil removed during recovery may be contaminated with refrigerant residues or wear particles and must be managed as hazardous waste per EPA and state regulations.

  4. What does the term 'push-pull recovery' refer to in refrigerant recovery operations?

    Answer: Using both the appliance compressor and an external recovery machine simultaneously to speed recovery

    Push-pull recovery leverages the system's own compressor to push refrigerant while the external machine simultaneously pulls, significantly reducing recovery time.

  5. A refrigerant reclaim facility differs from a simple recycling operation in that it must:

    Answer: Return refrigerant to the purity standards of ARI 700 before resale

    Reclaim facilities use distillation and chemical analysis to restore used refrigerant to ARI 700 virgin-equivalent purity standards required for resale.

  6. Which of the following is a valid reason to reject an appliance for standard refrigerant recovery at a CAR-certified facility?

    Answer: The appliance contains a refrigerant blend incompatible with the facility's recovery equipment

    Equipment certified for specific refrigerant types may not safely recover incompatible blends; using the wrong recovery equipment can damage the machine or contaminate the cylinder.