How do OC soils form? $[4$ marks$]$

What are elastic, primary, and secondary settlements in soil? When do they happen? $[6$ marks$]$

Explain in detail how engineers distinguish sensitive clays from other soils? $[4$ marks$]$

Determine the types of triaxial loading tests that can be used for modeling soil behavior under following conditions: $[8$ marks$]$

a$)$ Shear failure in granular soil

b$)$ Clayey soil subjected to surcharge loading for a long time

c$)$ Over$-$consolidated clay subjected to transient loading

d$)$ Normally consolidated clay subjected to transient loading

The moisture content of an $18-$ton mass of soil is $10\%.$ What is the weight of the soil particles? $[4$ marks$]$

The moisture content of a saturated soil sample is $160\%.$ Calculate the unit weight $()$ and the saturated unit weight $({}_{\text{s}\text{a}\text{t}})$ of the soil $)=(2\mathrm{.}7.[6$ marks$]$

For a moist soil in$-$situ $=8\%$ and $=15k\frac{N}{m^3}.$ What volume of this soil should be compacted so that $1m^3$ of the compacted soil would have a unit weight of $Y=18k\frac{N}{m^3}$ and a moisture content of $=12\%?[8$ marks$]$

Knowing that the pipes are filled with one soil type, calculate the ratio of hydraulic gradient at point $B$ to that of point $A.[6$ marks$]$

Calculate the seepage velocity for point $A$ in the flow net below $(k=8{10}^{-4}\frac{m}{s}$ and $n=0\mathrm{.}5).[8$ marks$]$