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

7°
10°
12°
17°

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Soil Mechanics and Foundation
In a deposit of normally consolidated clay

effective stress, water content and undrained strength decrease with depth
effective stress increases with depth but water content of soil and un-drained strength decrease with depth
effective stress and water content increase with depth but undrained strength decreases with depth
effective stress and undrained strength increase with depth but water content decreases with depth

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Soil Mechanics and Foundation
Quick sand is a

flow condition occurring in cohesionless soils
flow condition occurring in both cohesive and cohesionless soils
type of sand
flow condition occurring in cohesive soils

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