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MCQs

Total Questions : 292 | Page 7 of 30 pages
Question 61. For concreting of shallow sections with vibration, the work ability of concrete should be
  1.    very low
  2.    low
  3.    medium
  4.    high.
 Discuss Question
Answer: Option A. -> very low
Answer: (a).very low
Question 62. The slenderness ratio of a tie in a roof truss if subjected to action of wind and seismic forces, should not be greater than
  1.    180
  2.    210
  3.    250
  4.    350
 Discuss Question
Answer: Option D. -> 350
Answer: (d).350
Question 63. The slenderness effect of a wall is considered if the effective height of the wall exceeds the thickness
  1.    8 times
  2.    10 times
  3.    12 times
  4.    16 times
 Discuss Question
Answer: Option C. -> 12 times
Answer: (c).12 times
Question 64. For achieving suitably a low permeability
  1.    strong and dense aggregates are used
  2.    low water - cement ratio is used
  3.    proper curing is done for hydration
  4.    All the above.
 Discuss Question
Answer: Option D. -> All the above.
Answer: (d).All the above.
Question 65. Minimum thickness of steel work directly exposed to weather and accessible for cleaning and repainting, the thickness should be not less than
  1.    4 mm
  2.    6 mm
  3.    8 mm
  4.    7 mm
 Discuss Question
Answer: Option B. -> 6 mm
Answer: (b).6 mm
Question 66. In limit state method, the design bond stress of M 30 grade concrete for plain bars in tension, is
  1.    1.0 N/mm²
  2.    1.2 N/mm²
  3.    1.4 N/mm²
  4.    1.5 N/mm²
 Discuss Question
Answer: Option D. -> 1.5 N/mm²
Answer: (d).1.5 N/mm²
Question 67. The minimum horizontal distance between two parallel main reinforcing bars, is
  1.    the diameter of the bar if their diameters are same
  2.    the diameter of the longer bar if their diameters are unequal
  3.    5 mm more than nominal maximum size of the coarse aggragate
  4.    greatest value of the above.
 Discuss Question
Answer: Option D. -> greatest value of the above.
Answer: (d).greatest value of the above.
Question 68. Generally acceptable nominal size of aggregates for reinforced concrete, is
  1.    10 mm
  2.    15 mm
  3.    20 mm
  4.    25 mm
 Discuss Question
Answer: Option C. -> 20 mm
Answer: (c).20 mm
Question 69. Moist sand may contain surface water by mass upto
  1.    7.5%
  2.    5.0%
  3.    2.5%
  4.    1.25%
 Discuss Question
Answer: Option C. -> 2.5%
Answer: (c).2.5%
Question 70. If the end of a beam of span L carrying a designed load W is partially restrained by a built up wall, it is designed to resist the negative moment at the face of the support, equal to
  1.    WL/10
  2.    WL/12
  3.    WL/16
  4.    WL/24
 Discuss Question
Answer: Option D. -> WL/24
Answer: (d).WL/24

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