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Discussion :: Environmental Engineering - Civil Engineering

  1. Cleaning is done by
    (i) Scraping and removal in filters slow sand
    (ii) Back washing in slow sand filters
    (iii) Scraping and removal in filters rapid sand
    (iv) Back washing in rapid sand filters
    The correct answer is

    2. A.

     (i) and (ii)
    B.

     (ii) and (iii)
    C.

     (i) and (iv)
    D.

     (ii) and (iv)

    View Answer

    Workspace

    View Answer

    Answer : Option C

    Explanation :

    Explanation Not Provided

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