MCQs / Q&A

In a deposit of normally consolidated clay_________________?

by
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

For better strength and stability, the fine grained soils and coarse grained soils are compacted respectively as____________________?

by
For better strength and stability, the fine grained soils and coarse grained soils are compacted respectively as____________________?

A. dry of OMC and wet of OMC
B. wet of OMC and dry of OMC
C. wet of OMC and wet of OMC
D. dry of OMC and dry of OMC where OMC is optimum moisture content

For a loose sand sample and a dense sand sample consolidated to the same effective stress_____________?

by
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

With the increase in the amount of compaction energy________________?

by
With the increase in the amount of compaction energy________________?

A. optimum water content increases but maximum dry density decreases
B. optimum water content decreases but maximum dry density increases
C. both optimum water content and maximum dry density increase
D. both optimum water content and maximum dry density decrease

The ultimate consolidation settlement of a structure resting on a soil_______________?

by
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

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__________________?

by
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