Soil Mechanics and Foundation
Coefficient of compressibility is

different for different types of soils but same for a soil under different states of consolidation
different for different types of soils and also different for a soil under different states of consolidation
constant for any type of soil
independent of type of soil but depends on the stress history of soil

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

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

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Soil Mechanics and Foundation
The total discharge from two wells situated near to each other is

less than the sum of the discharges from individual wells
greater than the sum of the discharges from individual wells
equal to larger of the two discharges from individual wells
sum of the discharges from individual wells

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

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