A. decreases
B. increases
C. remains unchanged
D. first increases and then decreases
Related Mcqs:
- 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 - For a loose sand sample and a dense sand sample consolidated to the same effective stress_____________?
A. ultimate strength is same and also peak strength is same
B. ultimate strength is different but peak strength is same
C. ultimate strength is same but peak strength of dense sand is greater than that of loose sand
D. ultimate strength is same but peak - In a deposit of normally consolidated clay_________________?
A. effective stress increases with depth but water content of soil and un-drained strength decrease with depth
B. effective stress and water content increase with depth but undrained strength decreases with depth
C. effective stress and undrained strength increase with depth but water content decreases with depth
D. effective stress, water content and undrained strength decrease with depth - 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 - 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__________________?
A. consolidated drained test
B. consolidated undrained test
C. unconsolidated drained test
D. unconsolidated undrained test - The ratio of volume of voids to the total volume of soil mass is called______________?
A. air content
B. porosity
C. percentage air voids
D. voids ratio - If the volume of voids is equal to the volume of solids in a soil mass, then the values of porosity and voids ratio respectively are________________?
A. 1.0 and 0.0
B. 0.0 and 1.0
C. 0.5 and 1.0
D. 1.0 and 0.5 - 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 admixture of coarser particles like sand or silt to clay causes______________?
A. decrease in liquid limit and increase in plasticity index
B. decrease in liquid limit and no change in plasticity index
C. decrease in both liquid limit and plasticity index
D. increase in both liquid limit and plasticity index - Time factor for a clay layer is_______________?
A. a dimensional parameter
B. directly proportional to permeability of soil
C. inversely proportional to drainage path
D. independent of thickness of clay layer
