2. Questions Bank
  3. Railways
  4. NTPC (Technical Ability)
  5. Refrigeration and Air-Conditioning

Railways NTPC (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

You need to login to perform this action.
You will be redirected in 3 sec spinner