The hydrometer method of sedimentation analysis differs from the pipette analysis mainly in

the method of taking observations

the method of preparation of soil suspension

Rise of water table above the ground surface causes

Equal increase in pore water pressure and total stress

Equal decrease in pore water pressure and total stress

Increase in pore water pressure but decrease in total stress

Decrease in pore water pressure but increase in total stress

decreases with increase in liquid limit

increases with increase in liquid limit

first increases and then decreases with increase in liquid limit

remains constant at all liquid limits

two phase system with soil and water

two phase system with soil and air

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

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]