Soil Mechanics and Foundation
For a loose sand sample and a dense sand sample consolidated to the same effective stress

ultimate strength is same but peak strength of dense sand is greater than that of loose sand
ultimate strength is same and also peak strength is same
ultimate strength is same but peak
ultimate strength is different but peak strength is same

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Soil Mechanics and Foundation
Rise of water table above the ground surface causes

Equal decrease in pore water pressure and total stress
Equal increase in pore water pressure and total stress
Decrease in pore water pressure but increase in total stress
Increase in pore water pressure but decrease in total stress

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Soil Mechanics and Foundation
Within the consolidation process of a saturated clay

a gradual increase in neutral pressure and a gradual decrease in effective pressure takes place and sum of the two is constant
both neutral pressure and effective pressure decrease
both neutral pressure and effective pressure increase
a gradual decrease in neutral pressure and a gradual increase in effective pressure takes place and sum of the two is constant

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Soil Mechanics and Foundation
The rise of water table below the foundation influences the bearing capacity of soil mainly by reducing

cohesion and effective unit weight of soil
effective unit weight of soil and effective angle of shearing resistance
cohesion and effective angle of shearing resistance
effective angle of shearing resistance

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