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

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

12°

17°

10°

7°

12°

17°

10°

7°

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Soil Mechanics and Foundation
Clay layer A with single drainage and coefficient of consolidation Cv takes 6 months to achieve 50% consolidation. The time taken by clay layer B of the same thickness with double drainage and coefficient of consolidation Cv/2 to achieve the same degree of consolidation is

3 months

6 months

24 months

12 months

3 months

6 months

24 months

12 months

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Soil Mechanics and Foundation
Due to a rise in temperature, the viscosity and the unit weight of the percolating fluid are reduced to 60% and 90% respectively. If other things remain constant, the coefficient of permeability

increases by 50%

increases by 33.3%

decreases by 33.3%

increases by 25%

increases by 50%

increases by 33.3%

decreases by 33.3%

increases by 25%

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Soil Mechanics and Foundation
The admixture of coarser particles like sand or silt to clay causes

increase in both liquid limit and plasticity index

decrease in liquid limit and increase in plasticity index

decrease in both liquid limit and plasticity index

decrease in liquid limit and no change in plasticity index

increase in both liquid limit and plasticity index

decrease in liquid limit and increase in plasticity index

decrease in both liquid limit and plasticity index

decrease in liquid limit and no change in plasticity index

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Soil Mechanics and Foundation
The total and effective stresses at a depth of 5 m below the top level of water in a swimming pool are respectively

zero and zero

0.5 kg/cm² and zero

0.5 kg/cm² and 0.5 kg/cm²

1.0 kg/cm² and 0.5 kg/cm²

zero and zero

0.5 kg/cm² and zero

0.5 kg/cm² and 0.5 kg/cm²

1.0 kg/cm² and 0.5 kg/cm²

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Soil Mechanics and Foundation
Terzaghi’s bearing capacity factors Nc, Nq and Nr are functions of

both cohesion and angle of internal friction

angle of internal friction only

cohesion only

both cohesion and angle of internal friction

angle of internal friction only

cohesion only

both cohesion and angle of internal friction

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Soil Mechanics and Foundation

Soil Mechanics and Foundation Due to a rise in temperature, the viscosity and the unit weight of the percolating fluid are reduced to 60% and 90% respectively. If other things remain constant, the coefficient of permeability

Soil Mechanics and Foundation The admixture of coarser particles like sand or silt to clay causes

Soil Mechanics and Foundation The total and effective stresses at a depth of 5 m below the top level of water in a swimming pool are respectively

Soil Mechanics and Foundation Terzaghi’s bearing capacity factors Nc, Nq and Nr are functions of

Soil Mechanics and Foundation
Due to a rise in temperature, the viscosity and the unit weight of the percolating fluid are reduced to 60% and 90% respectively. If other things remain constant, the coefficient of permeability

Soil Mechanics and Foundation
The admixture of coarser particles like sand or silt to clay causes

Soil Mechanics and Foundation
The total and effective stresses at a depth of 5 m below the top level of water in a swimming pool are respectively

Soil Mechanics and Foundation
Terzaghi’s bearing capacity factors Nc, Nq and Nr are functions of