Soil Mechanics and Foundation
Coefficient of earth pressure at rest is

greater than both the active earth pressure and passive earth pressure
less than active earth pressure but greater than passive earth pressure
greater than active earth pressure but less than passive earth pressure
less than both the active and passive earth pressures

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Soil Mechanics and Foundation
The major principal stress in an element of cohesion-less soil within the backfill of a retaining wall is

Vertical if the soil is in a passive state of plastic equilibrium
None of these
Inclined at 45° to the vertical plane
Vertical if the soil is in an active state of plastic equilibrium

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

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

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

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Soil Mechanics and Foundation
Quick sand is a

flow condition occurring in cohesive soils
flow condition occurring in both cohesive and cohesionless soils
flow condition occurring in cohesionless soils
type of sand

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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

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

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