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
If the material of the base of the Casagrande liquid limit device on which the cup containing soil paste drops is softer than the standard hard rubber, then

The liquid limit of soil always increases
The liquid limit of soil always decreases
The liquid limit of soil may increase
The liquid limit of soil may decrease

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

increase 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]
reduce both the active earth pressure intensity and passive earth pressure intensity

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