Soil Mechanics and Foundation
A retaining wall 6m high supports a backfill with a surcharge angle of 10°. The back of the wall is inclined to the vertical at a positive batter angle of 5°. If the angle of wall friction is 7°, then the resultant active earth pressure will act at a distance of 2 m above the base and inclined to the horizontal at an angle of

17°
7°
10°
12°

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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
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
reduce the active earth pressure in-tensity but to increase the passive earth pressure intensity

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Soil Mechanics and Foundation
Coefficient of earth pressure at rest is

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

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Soil Mechanics and Foundation
With the increase in the amount of compaction energy

both optimum water content and maximum dry density decrease[ES 93]
optimum water content increases but maximum dry density decreases
optimum water content decreases but maximum dry density increases
both optimum water content and maximum dry density increase

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Soil Mechanics and Foundation
Within the consolidation process of a saturated clay

both neutral pressure and effective pressure increase
a gradual increase in neutral pressure and a gradual decrease in effective pressure takes place and sum of the two is constant
both neutral pressure and effective pressure decrease
a gradual decrease in neutral pressure and a gradual increase in effective pressure takes place and sum of the two is constant

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