- A. zero
- B. 1
- C. between 0 and 1
- D. greater than 1
Soil Mechanics and Foundation
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If the sand in-situ is in its densest state, then the relative density of sand is
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Shear strength of a soil is a unique function of
- A. effective stress only
- B. total stress only
- C. both effective stress and total stress
- D. none of the above
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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
- A. 7°
- B. 10°
- C. 12°
- D. 17°
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Skempton’s pore pressure coefficient B for saturated soil is
- A. 1
- B. zero
- C. between 0 and 1
- D. greater than 1
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Dispersed type of soil structure is an arrangement comprising particles having
- A. face to face or parallel orientation
- B. edge to edge orientation
- C. edge to face orientation
- D. all of the above
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The slope of isochrone at any point at a given time indicates the rate of change of
- A. effective stress with time
- B. effective stress with depth
- C. pore water pressure with depth
- D. pore water pressure with time
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Which of the following is a measure of particle size range ?
- A. effective size
- B. uniformity coefficient
- C. coefficient of curvature
- D. none of the above
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Which of the following methods is most accurate for the determination of the water content of soil ?
- A. oven drying method
- B. sand bath method
- C. calcium carbide method
- D. pycnometer method
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The shear strength of a soil
- A. Is directly proportional to the angle of internal friction of the soil
- B. Is inversely proportional to the angle of internal friction of the soil
- C. Decreases with increase in normal stress
- D. Decreases with decrease in normal stress
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A soil has a bulk density of 22 kN/m3 and water content 10 %. The dry density of soil is
- A. 18.6 kN/m3
- B. 20.0 kN/m3
- C. 22.0 kN/m3
- D. 23.2 kN/m3