If the water table rises upto ground surface, then the___________________?

A. effective stress is reduced due to decrease in total stress only but pore water pressure does not change
B. effective stress is reduced due to increase in pore water pressure only but total stress does not change
C. total stress is reduced due to increase in pore water pressure only but effec-tive stress does not change
D. total stress is increased due to de-crease in pore water pressure but effective stress does not change

Related Mcqs:

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%
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
The rise of water table below the foundation influences the bearing capacity of soil mainly by reducing_______________?
A. cohesion and effective angle of shearing resistance
B. cohesion and effective unit weight of soil
C. effective unit weight of soil and effective angle of shearing resistance
D. effective angle of shearing resistance
The maximum dry density upto which any soil can be compacted depends upon____________?
A. moisture content only
B. amount of compaction energy only
C. both moisture content and amount of compaction energy
D. none of the above
Water content of soil can______________?
A. never be greater than 100 %
B. take values only from 0 % to 100 %
C. be less than 0 %
D. be greater than 100 %
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
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
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
The total and effective stresses at a depth of 5 m below the top level of water in a swimming pool are respectively__________________?
A. zero and zero
B. 0.5 kg/cm2 and zero
C. 0.5 kg/cm2 and 0.5 kg/cm2
D. 1.0 kg/cm2 and 0.5 kg/cm2
During the first stage of triaxial test when the cell pressure is increased from 0.10 N/mm2 to 0.26 N/mm2, the pore water pressure increases from 0.07 N/mm2 to 0.15 “N/mm2. Skempton’s pore pressure parameter B is___________________?
A. 0.5
B. -0.5
C. 2.0
D. – 2.0