Soil Mechanics and Foundation
The flownet for an earthen dam with 30 m water depth consists of 25 potential drops and 5 flow channels. The coefficient of permeability of dam material is 0.03 mm/sec. The discharge per meter length of dam is

0.1125 m3/sec
0.0045 m3/sec
0.18 m3/sec
0.00018 nrVsec

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Soil Mechanics and Foundation
In a deposit of normally consolidated clay

effective stress and undrained strength increase with depth but water content decreases with depth
effective stress and water content increase with depth but undrained strength decreases with depth
effective stress increases with depth but water content of soil and un-drained strength decrease with depth
effective stress, water content and undrained strength decrease with depth

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

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

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Soil Mechanics and Foundation
Effective stress on soil

Increases voids ratio and decreases permeability
Decreases both voids ratio and permeability
Decreases voids ratio and increases permeability
Increases both voids ratio and permeability

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Soil Mechanics and Foundation
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

consolidated undrained test
unconsolidated undrained test
unconsolidated drained test
consolidated drained test

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