Soil Mechanics and Foundation
In a consolidated drained test on a normally consolidated clay, the volume of the soil sample during shear

remains unchanged
first increases and then decreases
decreases
increases

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

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

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