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Discussion :: Waste Water Engineering

  1. If the flame of a miner’s safety lamp in a manhole extinguishes within 5 minutes, the sewer certainly contains

    2. A.

     Hydrogen sulphide
    B.

     Carbon dioxide
    C.

     Methane
    D.

     Oxygen

    View Answer

    Workspace

    View Answer

    Answer : Option B

    Explanation :

    Explanation Not Provided

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