The rise of water table below the foundation influences the bearing capacity of soil mainly by reducing_______________?

Related Mcqs:

1. Rise of water table in cohesionless soils upto ground surface reduces the net ultimate bearing capacity approximately by________________?

   A. 25%
   B. 50%
   C. 75%
   D. 90%

2. In the plate loading test for determining the bearing capacity of soil, the size of square bearing plate should be_________________?

   A. less than 300 mm
   B. between 300 mm and 750 mm
   C. between 750 mm and 1 m
   D. greater than 1 m

3. Allowable bearing pressure for a foundation depends upon_______________?

   A. allowable settlement only
   B. ultimate bearing capacity of soil only
   C. both allowable settlement and ultimate bearing capacity
   D. none of above

4. Rise of water table above the ground surface causes________________?

   A. equal increase in pore water pressure and total stress
   B. equal decrease in pore water pressure and total stress
   C. increase in pore water pressure but decrease in total stress
   D. decrease in pore water pressure but increase in total stress

5. Terzaghi’s bearing capacity factors Nc, Nq and Nr are functions of______________?

   A. cohesion only
   B. angle of internal friction only
   C. both cohesion and angle of internal friction
   D. none of the above

6. 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

7. A 600 mm square bearing plate settles by 15 mm in plate load test on a cohesionless soil under an intensity of loading of 0.2 N/ram2. The settlement of a prototype shallow footing 1 m square under the same intensity of loading is_______________?

   A. 15 mm
   B. between 15 mm and 25 mm
   C. 25 mm
   D. greater than 25 mm

8. A 300 mm square bearing plate settles by 15 mm in a plate load test on a cohesive soil when the intensity of loading is 0.2 N/mm2. The settlement of a prototype shallow footing 1 m square under the same intensity of loading is___________________?

   A. 15 mm
   B. 30 mm
   C. 50 mm
   D. 167 mm

9. A soil has a bulk density of 22 kN/m3 and water content 10 %. The dry density of soil is_______________?

   A. 18.6 kN/m3
   B. 20.0 kN/m3
   C. 22.0 kN/m3
   D. 23.2 kN/m3

10. 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