The detention time for an ordinary plain sedimentation tank is :

(a) 6 to 8 hours
(b) 20 to 24 hours
(c) 1 to 2 hours
(d) 2 to 4 hours

Anurag Mishra Professor Asked on 31st December 2015 in Physics.
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    Answer: (a) 6 to 8 hours

    Anurag Mishra Professor Answered on 3rd January 2016.
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