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Type II 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.

Read the first 7 Type II flashcards as text

  1. It is a violation to knowingly vent which refrigerants during service of high-pressure appliances?

    Answer: CFC and HCFC refrigerants

    Knowingly venting CFC and HCFC refrigerants during service is prohibited under the Clean Air Act.

  2. Which trace gas may be used to pressurize a high-pressure system to find leaks without violating the venting prohibition?

    Answer: Nitrogen with a trace of refrigerant

    Nitrogen with a small trace of refrigerant is an accepted leak-testing method.

  3. Oxygen must never be used to pressurize a refrigeration system because it can cause what?

    Answer: An explosion when mixed with oil

    Oxygen can react explosively with compressor oil under pressure.

  4. A technician who disposes of a high-pressure appliance must do what before final disposal?

    Answer: Recover the refrigerant and verify required evacuation

    Refrigerant must be recovered to the required level before an appliance is disposed of.

  5. Records of refrigerant recovered from appliances being disposed of should be kept to demonstrate what?

    Answer: Regulatory compliance

    Documentation demonstrates compliance with EPA refrigerant handling regulations.

  6. If recovery equipment fails to pull the required vacuum, what is a likely cause?

    Answer: A leak in the recovery setup or hoses

    Leaks in hoses or fittings prevent the recovery setup from reaching the required vacuum.

  7. Recovered refrigerant from a high-pressure appliance may be returned to the same system only if it was handled how?

    Answer: Recovered and recycled with proper equipment

    Refrigerant recovered and recycled with approved equipment can be returned to the same owner's system.