TGPSC HMWSSB Manager 2015 Paper 2 · Question 78

Question 78 of the TSPSC Manager (Engineering), HMWSSB, 2015: Paper 2 (Civil Engineering) (1 November 2015). Try it first, then open the answer and explanation.

1. Manager 2015 Paper 2 (Civil) · Q78 · Environmental Engineering · Water Supply

   The efficiency of a sediment removal in a continuous sedimentation tank does not depend upon the

   1. Discharge through the tank
   2. Width of the tank
   3. Length of the tank
   4. Depth of the tank
   Show answer

   Answer: (4) Depth of the tank

   For an ideal continuous-flow settling tank, a particle is removed if its settling velocity is at least the overflow rate Q/(B × L), so efficiency depends on discharge and plan area (length and width) but not on depth.

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