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Environmental Engineering

Quiz by Wincentre Classes

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5 questions
Show answers
  • Q1
    The surface overflow rate of a plain sedimentation tank is
    200-500l/hr/m2
    1000-1250l/hr/m2
    2000-5000l/hr/m2
    500-750L/hr/m2
    30s
  • Q2
    For a rectangular sedimentation tank, the length to width ratio should preferably be
    1:4
    1:1
    1:2
    1:3
    30s
  • Q3
    Bleaching powder is
    Hypo chloride of lime
    Slaked lime
    Hypochlorite of lime
    Chloride of lime
    30s
  • Q4
    The process of dechlorination is preceded by
    Super chlorination
    Post chlorination
    Prechlorination
    Double chlorination
    30s
  • Q5
    Rapid sand filters remove bacteria to as much as
    90-95%
    70-80%
    80-90%
    98-99%
    30s

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