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Q2. (a) Sieve analysis performed on $200 \mathrm{gm}$ dry soil sample yielded data as shown in Table Q2(a-1). Soil fraction passing $0.075 \mathrm{~mm}$ then was subjected to hydrometer test and the results are tabulated in Table Q2(a-2). Table Q2(a-1) Raw and partial processed data from sieve test. \begin{tabular}{|c|c|c|c|} \hline $\begin{array}{c}\text { Sieve size } \\ \mathbf{m m}\end{array}$ & $\begin{array}{c}\text { Mass retained } \\ \mathbf{g}\end{array}$ & $\begin{array}{c}\text { Mass passing } \\ \mathbf{g}\end{array}$ & \% Finer \\ \hline 4.75 & 24 & 176 & \\ \hline 2.0 & 36 & 140 & \\ \hline 0.85 & 20 & 120 & \\ \hline 0.425 & 10 & & \\ \hline 0.25 & 8 & & \\ \hline 0.15 & 6 & & \\ \hline 0.075 & 10 & & \\ \hline \end{tabular} Table Q2(a-2) Data from hydrometer test. \begin{tabular}{|c|c|} \hline $\begin{array}{c}\text { Particle size } \\ \text { mm }\end{array}$ & \% Finer \\ \hline 0.05 & 40 \\ \hline 0.03 & 35 \\ \hline 0.02 & 31 \\ \hline 0.01 & 21 \\ \hline \end{tabular} (i) Complete the analysis for Tables $Q 2(a-1)$ and then plot the particle size distribution curve of the soil using combined data in Tables Q2 (a-1) and Q2 (a-2) on the attached semi-log graph paper (see Page 8). (15 marks) (ii) Classify the soil based on USCS if the Atterberg limits values are $L L=$ $43 \%$ and $P L=24 \%$. Refer 10 appropriate attached classification chart(s).

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