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MCQs

Total Questions : 1204 | Page 5 of 121 pages
Question 41. If the water table rises upto ground surface, then the
  1.    effective stress is reduced due to decrease in total stress only but pore water pressure does not change
  2.    effective stress is reduced due to increase in pore water pressure only but total stress does not change
  3.    total stress is reduced due to increase in pore water pressure only but effective stress does not change
  4.    total stress is increased due to decrease in pore water pressure but effective stress does not change
 Discuss Question
Answer: Option B. -> effective stress is reduced due to increase in pore water pressure only but total stress does not change
Question 42. Total number of stress components at a point within a soil mass loaded at its boundary is
  1.    3
  2.    6
  3.    9
  4.    16
 Discuss Question
Answer: Option C. -> 9
Question 43. Constant head permeameter is used to test permeability of
  1.    silt
  2.    clay
  3.    coarse sand
  4.    fine sand
 Discuss Question
Answer: Option C. -> coarse sand
Question 44. Bishop’s method of stability analysis
  1.    is more conservative
  2.    neglects the effect of forces acting on the sides of the slices
  3.    assumes the slip surface as an arc of a circle
  4.    all of the above
 Discuss Question
Answer: Option C. -> assumes the slip surface as an arc of a circle
Question 45. The water content of soil, which represents the boundary between plastic state and liquid state, is known as
  1.    liquid limit
  2.    plastic limit
  3.    shrinkage limit
  4.    plasticity index
 Discuss Question
Answer: Option A. -> liquid limit
Question 46. Which of the following types of soil is transported by gravitational forces ?
  1.    loess
  2.    talus
  3.    drift
  4.    dune sand
 Discuss Question
Answer: Option B. -> talus
Question 47. If a cohesive soil specimen is subjected to a vertical compressive load, the inclination of the cracks to the horizontal is
  1.    90°
  2.    45°
  3.    22.5°
  4.    0°
 Discuss Question
Answer: Option B. -> 45°
Question 48. If the shearing stress is zero on two planes, then the angle between the two planes is
  1.    45°
  2.    90°
  3.    135°
  4.    225°
 Discuss Question
Answer: Option B. -> 90°
Question 49. The shear strength of a soil
  1.    Is directly proportional to the angle of internal friction of the soil
  2.    Is inversely proportional to the angle of internal friction of the soil
  3.    Decreases with increase in normal stress
  4.    Decreases with decrease in normal stress
 Discuss Question
Answer: Option D. -> Decreases with decrease in normal stress
Question 50. Allowable bearing pressure for a foundation depends upon
  1.    allowable settlement only
  2.    ultimate bearing capacity of soil only
  3.    both allowable settlement and ultimate bearing capacity
  4.    none of above
 Discuss Question
Answer: Option C. -> both allowable settlement and ultimate bearing capacity

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