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MCQs

Total Questions : 1012 | Page 6 of 102 pages
Question 51. To minimize the effect of differential settlement, the area of a footing should be designed for
  1.    Dead load only
  2.    Dead load + live load
  3.    Dead load + fraction of live load
  4.    Live load + fraction of dead load
 Discuss Question
Answer: Option C. -> Dead load + fraction of live load
Question 52. The load carrying capacity of a helically reinforced column as compared to that of a tied column is about
  1.    5% less
  2.    10% less
  3.    5% more
  4.    10% more
 Discuss Question
Answer: Option C. -> 5% more
Question 53. If the permissible stress in steel in tension is 140 N/mm², then the depth of neutral axis for a singly reinforced rectangular balanced section will be
  1.    0.35 d
  2.    0.40 d
  3.    0.45 d
  4.    dependent on grade of concrete also
 Discuss Question
Answer: Option B. -> 0.40 d
Question 54. Maximum quantity of water needed per 50 kg of cement for M 15 grade of concrete is
  1.    28 liters
  2.    30 liters
  3.    32 liters
  4.    34 liters
 Discuss Question
Answer: Option C. -> 32 liters
Question 55. A higher modular ratio shows
  1.    higher compressive strength of con-crete
  2.    lower compressive strength of concrete
  3.    higher tensile strength of steel
  4.    lower tensile strength of steel
 Discuss Question
Answer: Option B. -> lower compressive strength of concrete
Question 56. Normally prestressing wires are arranged in the
  1.    upper part of the beam
  2.    lower part of the beam
  3.    center
  4.    anywhere
 Discuss Question
Answer: Option B. -> lower part of the beam
Question 57. Modulus of rupture of concrete is a measure of
  1.    flexural tensile strength
  2.    direct tensile strength
  3.    compressive strength
  4.    split tensile strength
 Discuss Question
Answer: Option A. -> flexural tensile strength
Question 58. In order to obtain the best workability of concrete, the preferred shape of aggregate is
  1.    rounded
  2.    elongated
  3.    angular
  4.    all of the above
 Discuss Question
Answer: Option A. -> rounded
Question 59. In a counterfort retaining wall, the main reinforcement is provided on thei) bottom face in front counterfortii) inclined face in front counterfortiii) bottom face in back counterfortiv) inclined face in back counterEortThe correct answer is
  1.    (i) and (ii),
  2.    (ii) and (iii)
  3.    (i) and (iv)
  4.    (iii) and (iv)
 Discuss Question
Answer: Option C. -> (i) and (iv)
Question 60. The effect of adding calcium chloride in concrete isi) to increase shrinkageii) to decrease shrinkageiii) to increase setting timeiv) to decrease setting timeThe correct answer is
  1.    (i) and (iii)
  2.    (i)and(iv)
  3.    (ii) and (iii)
  4.    (ii) and (iv)
 Discuss Question
Answer: Option B. -> (i)and(iv)

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