A. vertical if the soil is in an active state of plastic equilibrium
B. vertical if the soil is in a passive state of plastic equilibrium
C. inclined at 45° to the vertical plane
D. none of the above
Related Mcqs:
- 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° - 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 - 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 - 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% - Total number of stress components at a point within a soil mass loaded at its boundary is______________?
A. 3
B. 6
C. 9
D. 16 - 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° - 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 - If the shearing stress is zero on two planes, then the angle between the two planes is________________?
A. 45°
B. 90°
C. 135°
D. 225° - If the water content of a fully saturated soil mass is 100%, then the voids ratio of the sample is________________?
A. less than specific gravity of soil
B. equal to specific gravity of soil
C. greater than specific gravity of soil
D. independent of specific gravity of soil - The ultimate consolidation settlement of a soil is________________?
A. directly proportional to the voids ratio
B. directly proportional to the compression index
C. inversely proportional to the compression index
D. none of the above
