In an Oedometer apparatus, specimen of fully saturated clay has been consolidated under a vertical pressure of 50 kN/m2 and is presently at equilibrium. The effective stress and pore water pressure immediately on increasing the vertical stress to 150 kN/m2, respectively are
1
50 kN/m2 and 100 kN/m2
2
150 kN/m2 and 0
3
100 kN/m2 and 50 kN/m2
4
0 and 150 kN/m2
5
Question Not Attempted