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### Notes

**(GATE-Civil-Engg-2018)**

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**Civil engineering Common for all semester**

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**Basic eletronics**

**GATE Civil Engineering Question Paper with Answer key 2005 download**

**GATE Civil Engineering Question Paper with Answer key 2009 download**

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## The total number of filter beds required will be (GATE-CIVIL-Engg-2018)

A rapid sand filter comprising a number of filter beds is required to produce 99 MLD ofpotable water. Consider water loss during backwashing as 5%, rate of filtration as 6.0 m/h

and length to width ratio of filter bed as 1.35. The width of each filter bed is to be kept

equal to 5.2 m. One additional filter bed is to be provided to take care of break-down,

repair and maintenance. The total number of filter beds required will be

(A) 19 (B) 20 (C) 21 (D) 22

Asked by:naikaumprakash

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