## Soil Mechanics and Foundation Coefficient of consolidation for clays normally

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

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

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

## Soil Mechanics and Foundation Time factor for a clay layer is

inversely proportional to drainage path
directly proportional to permeability of soil
a dimensional parameter
independent of thickness of clay layer

## Soil Mechanics and Foundation Rankine’s theory of earth pressure assumes that the back of the wall is

plane and smooth
plane and rough
vertical and smooth
vertical and rough

## Soil Mechanics and Foundation Stoke’s law is valid only if the size of particle is

less than 0.0002 mm
between 0.2 mm and 0.0002 mm
All of these
greater than 0.2 mm

## Soil Mechanics and Foundation If the water content of a fully saturated soil mass is 100%, then the voids ratio of the sample is

equal to specific gravity of soil
greater than specific gravity of soil
independent of specific gravity of soil
less than specific gravity of soil