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MCQs

Total Questions : 189 | Page 4 of 19 pages
Question 31. The assumption of Boussinesq equation is that the soil is ______________
  1.    non-homogeneous
  2.    homogeneous
  3.    plastic
  4.    semi-plastic
 Discuss Question
Answer: Option B. -> homogeneous
Answer: (b).homogeneous
Question 32. The assumption of Boussinesq equation is that the soil is ______________
  1.    elastic
  2.    semi-elastic
  3.    plastic
  4.    semi-plastic
 Discuss Question
Answer: Option A. -> elastic
Answer: (a).elastic
Question 33. The assumption made by Boussinesq in the solutions is by the ____________
  1.    theory of plasticity
  2.    theory of elasticity
  3.    yield point
  4.    failure point
 Discuss Question
Answer: Option B. -> theory of elasticity
Answer: (b).theory of elasticity
Question 34. The assumption of Boussinesq equation is that the soil is ______________
  1.    semi-infinite
  2.    infinite
  3.    finite
  4.    semi- finite
 Discuss Question
Answer: Option A. -> semi-infinite
Answer: (a).semi-infinite
Question 35. The Boussinesq equation representing the polar radial stress is ___________
  1.    \(σ_R=\frac{3Q}{2} \frac{cos⁡β}{R^2} \)
  2.    \(σ_R=\frac{3Q}{2π} \frac{cos⁡β}{R^2}\)
  3.    \(σ_R=\frac{3Q}{2π} \frac{cos⁡β}{R}\)
  4.    \(σ_R=\frac{3Q}{2π} \frac{cos⁡β}{R^3} \)
 Discuss Question
Answer: Option B. -> \(σ_R=\frac{3Q}{2π} \frac{cos⁡β}{R^2}\)
Answer: (b).\(σ_R=\frac{3Q}{2π} \frac{cos⁡β}{R^2}\)
Question 36. If the r/z ratio is 0.5, then the vertical pressure on a horizontal plane is given by _________
  1.    \(σ_z=\frac{0.56Q}{z^3} \)
  2.    \(σ_z=\frac{0.4775Q}{z^3} \)
  3.    \(σ_z=\frac{0.2733Q}{z^2} \)
  4.    \(σ_z=\frac{0.4775Q}{z^2} \)
 Discuss Question
Answer: Option C. -> \(σ_z=\frac{0.2733Q}{z^2} \)
Answer: (c).\(σ_z=\frac{0.2733Q}{z^2} \)
Question 37. The vertical stress distribution diagram on a horizontal plane due to a concentrated load is known as the influence diagram if the load is ______
  1.    zero
  2.    unity
  3.    two units
  4.    three units
 Discuss Question
Answer: Option B. -> unity
Answer: (b).unity
Question 38. If the r/z ratio is unity, then the vertical pressure on a horizontal plane is given by _________
  1.    \(σ_z=\frac{0.56Q}{z^3} \)
  2.    \(σ_z=\frac{0.0844Q}{z^2} \)
  3.    \(σ_z=\frac{0.2733Q}{z^2} \)
  4.    \(σ_z=\frac{0.4775Q}{z^2} \)
 Discuss Question
Answer: Option B. -> \(σ_z=\frac{0.0844Q}{z^2} \)
Answer: (b).\(σ_z=\frac{0.0844Q}{z^2} \)
Question 39. The vertical stress is proportional to __________The maximum value of σz on vertical line is obtained at the point of intersection of vertical plane with radial line at the angle of ____________
  1.    \(\frac{z^2}{K_B} \)39°30’
  2.    \(\frac{K_B}{z^2} \)39°45’
  3.    \(\frac{K_B}{z^3} \)35°15’
  4.    \(\frac{z^3}{K_B} \)39°15’
 Discuss Question
Answer: Option B. -> \(\frac{K_B}{z^2} \)39°45’
Answer: \(\frac{K_B}{z^2} \)39°15’
Question 40. If the r/z ratio is 2, then the vertical pressure on a horizontal plane is given by _________
  1.    \(σ_z=\frac{0.0085Q}{z^2} \)
  2.    \(σ_z=\frac{0.0844Q}{z^2} \)
  3.    \(σ_z=\frac{0.2733Q}{z^2} \)
  4.    \(σ_z=\frac{0.4775Q}{z^2} \)
 Discuss Question
Answer: Option A. -> \(σ_z=\frac{0.0085Q}{z^2} \)
Answer: (a).\(σ_z=\frac{0.0085Q}{z^2} \)

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