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
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% - 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 - 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 - Due to a rise in temperature, the viscosity and the unit weight of the percolating fluid are reduced to 60% and 90% respectively. If other things remain constant, the coefficient of permeability__________________?
A. increases by 25%
B. increases by 50%
C. increases by 33.3%
D. decreases by 33.3% - A retaining wall 6m high supports a backfill with a surcharge angle of 10°. The back of the wall is inclined to the vertical at a positive batter angle of 5°. If the angle of wall friction is 7°, then the resultant active earth pressure will act at a distance of 2 m above the base and inclined to the horizontal at an angle of_________________?
A. 7°
B. 10°
C. 12°
D. 17° - 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 - 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
