Soil Mechanics and Foundation
Coefficient of consolidation for clays normally

increases with increase in liquid limit
first increases and then decreases with increase in liquid limit
decreases with increase in liquid limit
remains constant at all liquid limits

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

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

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Soil Mechanics and Foundation
The shear strength of a soil

Decreases with increase in normal stress
Decreases with decrease in normal stress
Is directly proportional to the angle of internal friction of the soil
Is inversely proportional to the angle of internal friction of the soil

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