Question $3$

$[7]$

Three different soil layers as shown in figure $2$ are located inside a cylindrical tube of diameter $150mm.$ A constant$-$head difference of $320mm$ is maintained across the soil sample. The hydraulic conductivities of the three soils in the direction of the flow are given as follows:

Soil I $=0\mathrm{.}082c\frac{m}{s}$

Soil II $=0\mathrm{.}016c\frac{m}{s}$

Soil III $=0\mathrm{.}005c\frac{m}{s}$

What is the amount of water flowing through the sample per minute?

Water supply

Question $4$

$18$

An area of interest with a soil profile as shown below is covered with $495mm$ of water due to flooding. The soil properties are as shown below.

$\backslash$table$[[$Thickness$,$Soil type,Soil properties$],[0-1\mathrm{.}7m,$Silty sand,${}_{\text{d}\text{r}\text{y}}=16\mathrm{.}1k\frac{N}{m^3}$;${}_{\text{s}\text{a}\text{t}}=17\mathrm{.}8k\frac{N}{m^3},G_s=2\mathrm{.}75$