A. a gradual increase in neutral pressure and a gradual decrease in effective pressure takes place and sum of the two is constant
B. a gradual decrease in neutral pressure and a gradual increase in effective pressure takes place and sum of the two is constant
C. both neutral pressure and effective pressure decrease
D. both neutral pressure and effective pressure increase
Related Mcqs:
- 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 - Coefficient of consolidation for clays normally_______________?
A. decreases with increase in liquid limit
B. increases with increase in liquid limit
C. first increases and then decreases with increase in liquid limit
D. remains constant at all liquid limits - Degree of consolidation is________________?
A. directly proportional to time and inversely proportional to drainage path
B. directly proportional to time and inversely proportional to square of drainage path
C. directly proportional to drainage path and inversely proportional to time
D. directly proportional to square of drainage path and inversely proportional to time - 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 - Coefficient of consolidation of a soil is affected by_______________?
A. compressibility
B. permeability
C. both compressibility and permeability
D. none of the above - The ultimate consolidation settlement of a structure resting on a soil_______________?
A. decreases with the increase in the initial voids ratio
B. decreases with the decrease in the plastic limit
C. increases with the increase in the initial voids ratio
D. increases with the decrease in the porosity of the soil - 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 - If the degree of saturation of a partially saturated soil is 60%, then air content of the soil is______________?
A. 40%
B. 60%
C. 80%
D. 100% - Skempton’s pore pressure coefficient B for saturated soil is________________?
A. 1
B. zero
C. between 0 and 1
D. greater than 1 - 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°
