Which one of the following statements is NOT correct?
- When the water content of soil lies between its liquid limit and plastic limit, the soil is said to be in plastic state.
- Boussinesq's theory is used for the analysis of stratified soil.
- The inclination of stable slope in cohesive soil can be greater than its angle of internal friction
- For saturated dense fine sand, after applying overburden correction, if the Standard Penetration Test value exceeds $15$, dilatancy correction is to be applied