In a triaxial compression test when drainage is allowed during the first stage (i. e. application of cell pressure) only and not during the second stage (i.e. application of deviator stress at constant cell pressure), the test is known as__________________?

Related Mcqs:

1. 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

2. 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

3. Clay layer A with single drainage and coefficient of consolidation Cv takes 6 months to achieve 50% consolidation. The time taken by clay layer B of the same thickness with double drainage and coefficient of consolidation Cv/2 to achieve the same degree of consolidation is_________________?

   A. 3 months
   B. 6 months
   C. 12 months
   D. 24 months

4. 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

5. The most suitable method for drainage of fine grained cohesive soils is________________?

   A. well ppint system
   B. vacuum method
   C. deep well system
   D. electroosmosis method

6. Constant head permeameter is used to test permeability of_______________?

   A. silt
   B. clay
   C. coarse sand
   D. fine sand

7. 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

8. The value of compression index for a remoulded sample whose liquid limit is 50% is______________?

   A. 0.028
   B. 0.28
   C. 036
   D. 0.036

9. 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

10. 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°