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. 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

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. Valid range for S, the degree of saturation of soil in percentage is______________?

   A. S>0
   B. S<0
   C. 0<S<100
   D. 0 < S < 100

5. Stoke’s law is valid only if the size of particle is________________?

   A. less than 0.0002 mm
   B. greater than 0.2 mm
   C. between 0.2 mm and 0.0002 mm
   D. all of the above

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. Which of the following methods is more suitable for the determination of permeability of clayey soil ?

   A. constant head method
   B. falling head method
   C. horizontal permeability test
   D. none of the above

8. Coefficient of consolidation of a soil is affected by_______________?

   A. compressibility
   B. permeability
   C. both compressibility and permeability
   D. none of the above

9. 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°

10. Terzaghi’s general bearing capacity formula for a strip footing (C Nc + y D Nq + 0.5 Y NTB. gives______________?

    A. safe bearing capacity
    B. net safe bearing capacity
    C. ultimate bearing capacity
    D. net ultimate bearing capacity where C = unit cohesion

    Y =unit weight of soil D = depth of foundation B = width of foundation N„ Nq, NY = bearing capacity factors