Soil Mechanics and Foundation
Degree of consolidation is

directly proportional to time and inversely proportional to drainage path
directly proportional to time and inversely proportional to square of drainage path
directly proportional to drainage path and inversely proportional to time
directly proportional to square of drainage path and inversely proportional to time

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Soil Mechanics and Foundation
Coefficient of compressibility is

different for different types of soils and also different for a soil under different states of consolidation
constant for any type of soil
different for different types of soils but same for a soil under different states of consolidation
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

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

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