Railways Technical Ability Refrigeration and Air-Conditioning Question Bank Refrigeration and Air-Conditioning

  • question_answer In order to substantially reduce of heat from atmosphere into cold refrigerant flowing in small diameter copper lindrically wrapped around the tubes, must be:

    A) Higher than critical radius of insulation

    B) Slightly lower than critical radius of insulation

    C) Equal to the critical radius of insulation

    D) Considerably higher than critical radius of insulation

    Correct Answer: C


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