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°

10°

17°

7°

12°

10°

17°

7°

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Soil Mechanics and Foundation
At liquid limit, all soils possess

different shear strengths of large magnitude

same shear strength of small magnitude

different shear strengths of small magnitude

same shear strength of large magnitude

different shear strengths of large magnitude

same shear strength of small magnitude

different shear strengths of small magnitude

same shear strength of large magnitude

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Soil Mechanics and Foundation
A tri-axial shear test is preferred to direct shear test, because

It can be performed under all three drainage conditions with complete control

Precise measurement of pore pressure and change in volume during test, is not possible

None of these

Stress distribution on the failure plane, is non uniform

It can be performed under all three drainage conditions with complete control

Precise measurement of pore pressure and change in volume during test, is not possible

None of these

Stress distribution on the failure plane, is non uniform

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Soil Mechanics and Foundation
Bishop’s method of stability analysis

assumes the slip surface as an arc of a circle

is more conservative

neglects the effect of forces acting on the sides of the slices

All of these

assumes the slip surface as an arc of a circle

is more conservative

neglects the effect of forces acting on the sides of the slices

All of these

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Soil Mechanics and Foundation
The hydraulic head that would produce a quick condition in a sand stratum of thickness 1.5 m, specific gravity 2.67 and voids ratio 0.67 is equal to

2.0m

1.0m

1.5m

3m

2.0m

1.0m

1.5m

3m

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Soil Mechanics and Foundation
Toughness index is defined as the ratio of

plasticity index to consistency index

liquidity index to flow index

consistency index to liquidity index

plasticity index to flow index

plasticity index to consistency index

liquidity index to flow index

consistency index to liquidity index

plasticity index to flow index

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Soil Mechanics and Foundation

Soil Mechanics and Foundation At liquid limit, all soils possess

Soil Mechanics and Foundation A tri-axial shear test is preferred to direct shear test, because

Soil Mechanics and Foundation Bishop’s method of stability analysis

Soil Mechanics and Foundation The hydraulic head that would produce a quick condition in a sand stratum of thickness 1.5 m, specific gravity 2.67 and voids ratio 0.67 is equal to

Soil Mechanics and Foundation Toughness index is defined as the ratio of

Soil Mechanics and Foundation
At liquid limit, all soils possess

Soil Mechanics and Foundation
A tri-axial shear test is preferred to direct shear test, because

Soil Mechanics and Foundation
Bishop’s method of stability analysis

Soil Mechanics and Foundation
The hydraulic head that would produce a quick condition in a sand stratum of thickness 1.5 m, specific gravity 2.67 and voids ratio 0.67 is equal to

Soil Mechanics and Foundation
Toughness index is defined as the ratio of