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MCQs

Total Questions : 189 | Page 8 of 19 pages
Question 71. The relation between the stress component in z-direction on a horizontal plane in Cartesian coordinates and polar coordinates for vertical line load is ___________
  1.    σz=σᵣ cos²⁡θ
  2.    σz=σᵣ cosec²⁡θ
  3.    σz=σᵣ cos⁡θ
  4.    σz=σᵣ sin²⁡θ
 Discuss Question
Answer: Option A. -> σz=σᵣ cos²⁡θ
Answer: (a).σz=σᵣ cos²⁡θ
Question 72. The shear stress component in xz-plane in Cartesian coordinates for horizontal line load is ___________
  1.    \(τ_{xz}=\frac{2Q}{xzsinθcos⁡θ} \)
  2.    \(τ_{xz}=\frac{2Qxz^2}{π(x^2+z^2)^2} \)
  3.    \(τ_{xz}=\frac{2Qx^3}{π(x^2+z^2)^2} \)
  4.    \(τ_{xz}=\frac{2Qx^2 z}{π(x^2+z^2)^2} \)
 Discuss Question
Answer: Option D. -> \(τ_{xz}=\frac{2Qx^2 z}{π(x^2+z^2)^2} \)
Answer: (d).\(τ_{xz}=\frac{2Qx^2 z}{π(x^2+z^2)^2} \)
Question 73. The stress component in x-direction on a horizontal plane in Cartesian coordinates for horizontal line load is ___________
  1.    \(σ_x=\frac{2Q}{xzsinθcos⁡θ} \)
  2.    \(σ_x=\frac{2Qxz^2}{π(x^2+z^2)^2} \)
  3.    \(σ_x=\frac{2Qx^3}{π(x^2+z^2)^2} \)
  4.    \(σ_x=\frac{2Qx^2 z}{π(x^2+z^2)^2} \)
 Discuss Question
Answer: Option C. -> \(σ_x=\frac{2Qx^3}{π(x^2+z^2)^2} \)
Answer: (c).\(σ_x=\frac{2Qx^3}{π(x^2+z^2)^2} \)
Question 74. The relation between the shear stress component in xz-plane in Cartesian coordinates and polar coordinates for vertical line load is ___________
  1.    τxz=σᵣ tan²⁡θ
  2.    τxz=σᵣ cosec²⁡θ
  3.    τxz=σᵣ sinθcos⁡θ
  4.    τxz=σᵣ sin²θ
 Discuss Question
Answer: Option C. -> τxz=σᵣ sinθcos⁡θ
Answer: (c).τxz=σᵣ sinθcos⁡θ
Question 75. The uniformly varying load is __________ in a beam.
  1.    rate of loading increases linearly from zero
  2.    rate of loading increases non-linearly from zero
  3.    equal load at every point
  4.    equal load only at supports
 Discuss Question
Answer: Option A. -> rate of loading increases linearly from zero
Answer: (a).rate of loading increases linearly from zero
Question 76. The triangular load is also known as ___________
  1.    uniformly distributed load
  2.    uniformly varying load
  3.    point load
  4.    equivalent uniformly distributed load
 Discuss Question
Answer: Option B. -> uniformly varying load
Answer: (b).uniformly varying load
Question 77. Trapezoidal load is encountered in earth fills.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 78. The greatest value of maximum shear stress τmax occurs when angle θ is _________
  1.    π
  2.    π/2
  3.    π/3
  4.    π/4
 Discuss Question
Answer: Option B. -> π/2
Answer: (b).π/2
Question 79. The maximum shear stress is the difference between major and minor principal stresses.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option B. -> False
Answer: (b).False
Question 80. In a stress tensor, each stress component in it is represented by__________
  1.    magnitude only
  2.    direction only
  3.    both magnitude and direction
  4.    opposite direction
 Discuss Question
Answer: Option C. -> both magnitude and direction
Answer: (c).both magnitude and direction

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