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MCQs

Total Questions : 1012 | Page 9 of 102 pages
Question 81. A beam curved in plan is designed for
  1.    bending moment and shear
  2.    bending moment and torsion
  3.    shear and torsion
  4.    bending moment, shear and torsion
 Discuss Question
Answer: Option D. -> bending moment, shear and torsion
Question 82. Admixtures which cause early setting, and hardening of concrete are called
  1.    workability admixtures
  2.    accelerators
  3.    retarders
  4.    air entraining agents
 Discuss Question
Answer: Option B. -> accelerators
Question 83. The load factors for live load and dead load are taken respectively as
  1.    1.5 and 2.2
  2.    2.2 and 1.5
  3.    1.5 and 1.5
  4.    2.2 and 2.2
 Discuss Question
Answer: Option B. -> 2.2 and 1.5
Question 84. According to IS: 456-1978, the maximum reinforcement in a column is
  1.    2 %
  2.    4%
  3.    6 %
  4.    8 %
 Discuss Question
Answer: Option C. -> 6 %
Question 85. Ratio of permissible stress in direct compression and bending compression is
  1.    less than 1
  2.    between 1 and 1.5
  3.    between 1.5 and 2.0
  4.    greater than 2
 Discuss Question
Answer: Option A. -> less than 1
Question 86. Minimum pitch of transverse reinforcement in a column is
  1.    the least lateral dimension of the member
  2.    sixteen times the smallest diameter of longitudinal reinforcement bar to be tied
  3.    forty-eight times the diameter of transverse reinforcement
  4.    lesser of the above three values
 Discuss Question
Answer: Option D. -> lesser of the above three values
Question 87. In case of hand mixing of concrete, the extra cement to be added is
  1.    5%
  2.    10%
  3.    15%
  4.    20%
 Discuss Question
Answer: Option B. -> 10%
Question 88. Increase in the moisture content in concrete
  1.    reduces the strength
  2.    increases the strength
  3.    does not change the strength
  4.    all of the above
 Discuss Question
Answer: Option A. -> reduces the strength
Question 89. Which of the following statements is incorrect?
  1.    Minimum cross sectional area of longitudinal reinforcement in a column is 0.8%
  2.    Spacing of longitudinal bars measured along the periphery of column should not exceed 300 mm
  3.    Reinforcing bars in a column should not be less than 12 mm in diameter
  4.    The number of longitudinal bars provided in a circular column should not be less than four
 Discuss Question
Answer: Option D. -> The number of longitudinal bars provided in a circular column should not be less than four
Question 90. Prestress loss due to friction occurs
  1.    only in post-tensioned beams
  2.    only in pretensioned beams
  3.    in both post-tensioned and preten-sioned beams
  4.    none of the above
 Discuss Question
Answer: Option A. -> only in post-tensioned beams

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