The standard plasticity chart for the classification of fine-grained soils is used to classify soils based on their liquid limit and plasticity index. The position of the point \( X \) in the diagram helps in determining the soil type.
- From the figure, \( X \) lies in the region that corresponds to inorganic clay with high plasticity.
- The plasticity index value of \( X \) is greater than 35, which is characteristic of high plasticity clay.
So, soil \( X \) can be classified as inorganic clay with high plasticity based on the IS classification system.
Thus, the correct answer is option (C).
Match List-I with List-II:
For the beam and loading shown in the figure, the second derivative of the deflection curve of the beam at the mid-point of AC is given by \( \frac{\alpha M_0}{8EI} \). The value of \( \alpha \) is ........ (rounded off to the nearest integer).
In levelling between two points A and B on the opposite banks of a river, the readings are taken by setting the instrument both at A and B, as shown in the table. If the RL of A is 150.000 m, the RL of B (in m) is ....... (rounded off to 3 decimal places).