In a rapid sand filter, the time for reaching particle break through (T,) is defined as the time elapsed from start of filter run to the time at which the turbidity of the effluent from the filter is greater than 2.5 NTU. The time for reaching terminal head loss (T,) is defined as the time elapsed from the start of the filter run to the time when head loss across the filter is greater than 3 m. The effect of increasing the filter depth (while keeping all other conditions same) on T, and T is H. (A) T, increases and T, decreases. (B) Both T, and T, increase. (C) T decreases and T, increases. (D) Both T and T, decrease.

In a rapid sand filter, the time for reaching particle break through (T,) is defined as the time elapsed from start of filter run to the time at which the turbidity of the effluent from the filter is greater than 2.5 NTU. The time for reaching terminal head loss (T,) is defined as the time elapsed from the start of the filter run to the time when head loss across the filter is greater than 3 m. The effect of increasing the filter depth (while keeping all other conditions same) on T, and T is H. (A) T, increases and T, decreases. (B) Both T, and T, increase. (C) T decreases and T, increases. (D) Both T and T, decrease.

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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