16.A normally consolidated clay settled 10 mm when effective stress was increased from 100 kN/m2 to 200 kN/ m2. If the effective stress is further increased from 200 kN/ m2 to 400 kN/ m2, then the settlement of the same clay is

17.Shear strength of a soil is a unique function of

18.The angle that Coulomb's failure envelope makes with the horizontal is called

19.A cylindrical specimen of saturated soil failed under an axial vertical stress of 100kN/m2 when it was laterally unconfmed. The failure plane was inclined to the horizontal plane at an angle of 45�. The values of cohesion and angle of internal friction for the soil are respectively

20.Select the incorrect statement.