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Type II High-Pressure Systems Flashcards

7 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. When recovering refrigerant from a high-pressure system, the recovery cylinder should never be filled beyond what percentage of capacity?

    Answer: 80%

    Recovery cylinders must not be filled past 80% to allow for liquid expansion.

  2. What is the standard color code for a refrigerant recovery cylinder?

    Answer: Gray with yellow top

    Recovery cylinders are gray with a yellow top to distinguish them.

  3. Liquid recovery from a high-pressure system is faster than vapor recovery primarily because:

    Answer: More mass moves per unit time

    Liquid recovery removes more refrigerant mass per minute than vapor recovery.

  4. During recovery, frost forming on the recovery machine suction line usually indicates:

    Answer: Liquid refrigerant entering the compressor

    Frosting on the suction line signals liquid slugging into the recovery compressor.

  5. Which best describes 'recycling' of refrigerant?

    Answer: Reducing contaminants with oil separation and filtration on site

    Recycling cleans refrigerant on site through oil separation and filter-driers.

  6. A technician must keep records of refrigerant recovered for resale for how long?

    Answer: 3 years

    Records related to refrigerant recovery for resale must be kept for three years.

  7. What should be done with a recovery cylinder that has reached its hydrostatic test expiration?

    Answer: Retest or remove from service

    Cylinders past hydrostatic test dates must be retested or taken out of service.