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

  • question_answer Consider the following refrigerants:
    1. Ammonia                  
    2. Carbon dioxide
    3. Dichlorodifluoro methane
    4. Tetrafluoromethane
    Which one of the following is the correct order of their boiling points in the descending order?

    A) 1 - 2 - 3 - 4                   

    B) 4 - 3 - 1 - 2

    C) 3 - 1 - 2 - 4                   

    D) 2 - 4 - 1 - 3

    Correct Answer: B


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