Related Mcqs:

1. In a consolidated drained test on a normally consolidated clay, the volume of the soil sample during shear________________?

   A. decreases
   B. increases
   C. remains unchanged
   D. first increases and then decreases

2. In a deposit of normally consolidated clay_________________?

   A. effective stress increases with depth but water content of soil and un-drained strength decrease with depth
   B. effective stress and water content increase with depth but undrained strength decreases with depth
   C. effective stress and undrained strength increase with depth but water content decreases with depth
   D. effective stress, water content and undrained strength decrease with depth

3. For a loose sand sample and a dense sand sample consolidated to the same effective stress_____________?

   A. ultimate strength is same and also peak strength is same
   B. ultimate strength is different but peak strength is same
   C. ultimate strength is same but peak strength of dense sand is greater than that of loose sand
   D. ultimate strength is same but peak

4. Clay layer A with single drainage and coefficient of consolidation Cv takes 6 months to achieve 50% consolidation. The time taken by clay layer B of the same thickness with double drainage and coefficient of consolidation Cv/2 to achieve the same degree of consolidation is_________________?

   A. 3 months
   B. 6 months
   C. 12 months
   D. 24 months

5. 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

6. Effective stress is______________?

   A. the stress at particles contact
   B. a physical parameter that can be measured
   C. important because it is a function of engineering properties of soil
   D. all of the above

7. Effective stress on soil_____________?

   A. increases voids ratio and decreases permeability
   B. increases both voids ratio and permeability
   C. decreases both voids ratio and permeability
   D. decreases voids ratio and increases permeability

8. The admixture of coarser particles like sand or silt to clay causes______________?

   A. decrease in liquid limit and increase in plasticity index
   B. decrease in liquid limit and no change in plasticity index
   C. decrease in both liquid limit and plasticity index
   D. increase in both liquid limit and plasticity index

9. The clay mineral with the largest swelling and shrinkage characteristics is_______________?

   A. kaolinite
   B. illite
   C. montmorillonite
   D. none of the above

10. Time factor for a clay layer is_______________?

    A. a dimensional parameter
    B. directly proportional to permeability of soil
    C. inversely proportional to drainage path
    D. independent of thickness of clay layer