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Three soil specimens (Soil 1, Soil 2 and Soil 3), each $150 \mathrm{~mm}$ long and $100 \mathrm{~mm}$ diameter, are placed in series in a constant head flow set-up as shown in the figure. Suitable screens are provided at the boundaries of the specimens to keep them intact. The values of coefficient of permeability of Soil $1,$ Soil 2 and Soil 3 are 0.01,0.003 and $0.03 \mathrm{~cm} / \mathrm{s}$ respectively.


The value of $h$ in the set-up is
(A) $0 \mathrm{~mm}$
(B) $40 \mathrm{~mm}$
(C) $255 \mathrm{~mm}$
(D) $560 \mathrm{~mm}$


Question ID - 156666 | Toppr Answer

Three soil specimens (Soil 1, Soil 2 and Soil 3), each $150 \mathrm{~mm}$ long and $100 \mathrm{~mm}$ diameter, are placed in series in a constant head flow set-up as shown in the figure. Suitable screens are provided at the boundaries of the specimens to keep them intact. The values of coefficient of permeability of Soil $1,$ Soil 2 and Soil 3 are 0.01,0.003 and $0.03 \mathrm{~cm} / \mathrm{s}$ respectively.


The value of $h$ in the set-up is
(A) $0 \mathrm{~mm}$
(B) $40 \mathrm{~mm}$
(C) $255 \mathrm{~mm}$
(D) $560 \mathrm{~mm}$

1 Answer - 5876 Votes

3537

Answer Key : (B) -

$40 \mathrm{~mm}$



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