Soil Mechanics and Foundation
Effective stress on soil

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

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Soil Mechanics and Foundation
If the water table rises upto ground surface, then the

effective stress is reduced due to increase in pore water pressure only but total stress does not change
total stress is reduced due to increase in pore water pressure only but effective stress does not change
total stress is increased due to decrease in pore water pressure but effective stress does not change
effective stress is reduced due to decrease in total stress only but pore water pressure does not change

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Soil Mechanics and Foundation
The effect of cohesion on a soil is to

reduce both the active earth pressure intensity and passive earth pressure intensity
reduce the active earth pressure in-tensity but to increase the passive earth pressure intensity
increase both the active earth pressure intensity and passive earth pressure intensity
increase the active earth pressure in-tensity but to reduce the passive earth pressure intensity [GATE 99]

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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 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
effective stress and water content increase with depth but undrained strength decreases with depth

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