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Discussion :: Refrigeration and Air Conditioning

  1. The refrigerant used in small tonnage commercial machines (hermetically sealed units) is

    2. A.

     Ammonia
    B.

     Carbon dioxide
    C.

     Sulphur dioxide
    D.

     R-12

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    Workspace

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    Answer : Option C

    Explanation :

    The refrigerant used in small tonnage commercial machines (hermetically sealed units) is Sulphur dioxide

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