Practice Test Geeks(CFC) Chlorofluorocarbon Certification Practice Test
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Recovery Equipment & Techniques Flashcards

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

Read the first 7 Recovery Equipment & Techniques flashcards as text

  1. What is the PRIMARY reason liquid refrigerant recovery is faster than vapor recovery?

    Answer: Liquid refrigerant contains much more mass per unit volume than vapor

    Liquid refrigerant is far denser than vapor, so the same volume of liquid contains significantly more refrigerant mass, speeding up the overall recovery process.

  2. A technician connects a recovery machine to a system and the machine runs but no refrigerant is being recovered. After checking connections, the NEXT step should be to:

    Answer: Check that the system service valves are open and the recovery cylinder valve is open

    Closed service valves or a closed cylinder valve are the most common causes of zero flow despite the machine running.

  3. Which statement about recovering refrigerant from a system with a hermetic compressor burnout is CORRECT?

    Answer: The refrigerant should be labeled as contaminated and the reclaim facility must be notified of the burnout

    Refrigerant from a burnout must be labeled as contaminated and the reclaim facility must be informed so they can handle it appropriately.

  4. EPA Section 608 defines 'substantially contribute' to ozone depletion. Under this standard, technicians are prohibited from knowingly venting refrigerants during:

    Answer: Maintenance, service, repair, and disposal of refrigerant-containing appliances

    Section 608 prohibits knowing venting during all phases of maintenance, service, repair, and disposal of equipment containing regulated refrigerants.

  5. When recovering refrigerant from a large chiller using a dedicated recovery unit, the technician should connect recovery hoses to:

    Answer: Both high-side and low-side service ports for push-pull recovery

    Large chillers benefit from push-pull recovery using both service ports to maximize recovery speed and efficiency.

  6. A recovery cylinder is rated with a maximum fill weight. The technician should NEVER fill a recovery cylinder beyond what percentage of its rated capacity by weight?

    Answer: 80%

    Recovery cylinders must not be filled beyond 80% of their rated capacity by weight to allow for liquid expansion due to temperature changes.

  7. Which recovery technique is MOST appropriate when a system has both a liquid line service valve and a suction service valve accessible?

    Answer: Recover vapor from the suction side while simultaneously transferring liquid from the liquid line

    Recovering vapor from the suction side while simultaneously moving liquid from the liquid line uses both access points for maximum recovery speed.