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- Question
The vane shear test is used for the in-situ determination of the undrained strength of the intact fully saturated
Options- A. sands
- B. clays
- C. gravels
- D. highly organic soils.
- Correct Answer
- clays
- 1. The coefficient of curvature for a well graded soil, must be between
Options- A. 0.5 to 1.0
- B. 1.0 to 3.0
- C. 3.0 to 4.0
- D. 4.0 to 5.0 Discuss
- 2. Flow net is used for the determination of
Options- A. quantity of seepage
- B. hydrostatic pressure
- C. seepage pressure
- D. exit gradient
- E. all the above. Discuss
- 3. The passive earth pressure of a soil, is proportional to (where ? is the angle of internal friction of the soil.)
Options- A. tan (45° - ?)
- B. tan (45° + ?)
- C. tan2 (45° - ?
- D. tan2 (45° + ?) Discuss
- 4. If the coefficients of volume change and compressibility of a soil sample are respectively 6.75 x 10-2 and 3 x 10-2, the void ratio of the soil sample, is
Options- A. 1.10
- B. 1.15
- C. 1.20
- D. 1.25
- E. 1.30 Discuss
- 5. Terzaghi's analysis assumes :
Options- A. soil is homogeneous and isotropic
- B. elastic zone has straight boundaries inclined at ? = ? to the horizontal and plastic zones fully developed
- C. failure zones do not extend above the horizontal plane through the base of the footing
- D. all the above. Discuss
- 6. The specific gravity of quartz, is
Options- A. 2.65
- B. 2.72
- C. 2.85
- D. 2.90 Discuss
- 7. If the cohesive force, (c), is 1.5 t/m2, the density (?) of the soil is 2.0 t/m3, factor of safety (F) is 1.5 and stability factor (Sn) is 0.05, the safe height of the §lope, is
Options- A. 5 metres
- B. 8 metres
- C. 10 metres
- D. 12 metres Discuss
- 8. If the back fill is having a uniform surcharge of intensity q per unit area, the lateral pressure will be
Options- A. q times the lateral pressure within the surface
- B. 1/q times the lateral pressure within the surface
- C. equal to a fill of height Z equal to q/r, where r is the density of the backfill
- D. none of these. Discuss
- 9. The shear resistance of a soil is con-tituted basically of the following component.
Options- A. The frictional resistance to translocation between the individual soil particles at their contact point
- B. To the structural relation to displacement of the soil because of the interlocking of the particles
- C. Cohesion and adhesion between the surfaces of the soil particles
- D. All the above. Discuss
- 10. The maximum net pressure intensity causing shear failure of soil, is known
Options- A. safe bearing capacity
- B. net safe bearing capacity
- C. net ultimate bearing capacity
- D. ultimate bearing capacity. Discuss
Soil Mechanics and Foundation Engineering problems
Search Results
Correct Answer: 1.0 to 3.0
Correct Answer: all the above.
Correct Answer: tan2 (45° + ?)
Correct Answer: 1.25
Explanation:
Coeff.compressibility = Coeff.volume change/(1 + e).
(1 + e) = Coeff.volume change/Coeff.compressibility.
e = (Coeff.volume change/Coeff.compressibility) - 1.
e = ((6.75 x 10-2)/(3 x 10-2)) - 1.
e = 2.25 - 1.
e = 1.25.
Correct Answer: all the above.
Correct Answer: 2.65
Correct Answer: 10 metres
Correct Answer: equal to a fill of height Z equal to q/r, where r is the density of the backfill
Correct Answer: All the above.
Correct Answer: net ultimate bearing capacity
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