Soil Mechanics and Foundation
In a deposit of normally consolidated clay

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

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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
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

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Soil Mechanics and Foundation
A tri-axial shear test is preferred to direct shear test, because

Precise measurement of pore pressure and change in volume during test, is not possible
Stress distribution on the failure plane, is non uniform
None of these
It can be performed under all three drainage conditions with complete control

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Soil Mechanics and Foundation
Degree of consolidation is

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

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