Related Mcqs:

1. If the natural water content of soil mass lies between its liquid limit and plastic limit, the soil mass is said to be in______________?

   A. liquid state
   B. plastic state
   C. semi-solid state
   D. solid state

2. In the triaxial compression test, the application of additional axial stress (i.e. deviator stress) on the soil specimen produces shear stress on__________________?

   A. horizontal plane only
   B. vertical plane only
   C. both horizontal and vertical planes
   D. all planes except horizontal and vertical planes

3. If the plasticity index of a soil mass is zero, the soil is______________?

   A. sand
   B. silt
   C. clay
   D. clayey silt

4. The major principal stress in an element of cohesionless soil within the backfill of a retaining wall is________________?

   A. vertical if the soil is in an active state of plastic equilibrium
   B. vertical if the soil is in a passive state of plastic equilibrium
   C. inclined at 45° to the vertical plane
   D. none of the above

5. 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______________________?

   A. 0.5 N/mm2 and 30°
   B. 0.05 N/mm2 and 0°
   C. 0.2 N/mm2 and 0°
   D. 0.05 N/mm2 and 45°

6. If the voids of a soil mass are full of air only, the soil is termed as_______________?

   A. air entrained soil
   B. partially saturated soil
   C. dry soil
   D. dehydrated soil

7. If the degree of saturation of a partially saturated soil is 60%, then air content of the soil is______________?

   A. 40%
   B. 60%
   C. 80%
   D. 100%

8. The ratio of volume of voids to the total volume of soil mass is called______________?

   A. air content
   B. porosity
   C. percentage air voids
   D. voids ratio

9. The water content of soil, which represents the boundary between plastic state and liquid state, is known as_________________?

   A. liquid limit
   B. plastic limit
   C. shrinkage limit
   D. plasticity index

10. 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__________________?

    A. 10 mm
    B. 20 mm
    C. 40 mm
    D. none of the above