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MCQs

Total Questions : 88 | Page 6 of 9 pages
Question 51. For designing masonry components of a structure, seismic forces provision in the design calculation is not necessary for buildings constructed in
  1.    Zone I, II, III and IV
  2.    Zone I only
  3.    Zone I, II and III
  4.    Zone I and II
 Discuss Question
Answer: Option D. -> Zone I and II
Question 52. In a cavity wall, both leaves of which are load bearing, the effective thickness is taken as
  1.    Two-third of the sum of thickness of both the leaves
  2.    Larger of (B) and (C)
  3.    Sum of thickness of both leaves
  4.    Actual thickness of the stronger leaf
 Discuss Question
Answer: Option B. -> Larger of (B) and (C)
Question 53. Minimum compressive strength in N/mm² for H1 type mortar used for masonry is
  1.    5
  2.    3
  3.    10
  4.    7.5
 Discuss Question
Answer: Option C. -> 10
Question 54. The mode of failure of a very short masonry member having h/t ratio of less than 4 is by
  1.    Any of the above
  2.    Vertical tensile splitting
  3.    Shear
  4.    Buckling
 Discuss Question
Answer: Option C. -> Shear
Question 55. A 200 mm thick wall made of modular bricks is 5 m long between cross walls and 3.8 m clear height between RCC slabs at top and bottom. The slenderness ratio of the wall is
  1.    25
  2.    19
  3.    15
  4.    20
 Discuss Question
Answer: Option C. -> 15
Question 56. If the ratio of center to center spacing of intersecting walls to actual thickness of intersecting wall is more than 20, then the stiffening coefficient for wall proper will be
  1.    Between 0 and 1
  2.    Greater than 1
  3.    1
 Discuss Question
Answer: Option B. -> Greater than 1
Question 57. Where a structural component or a system is providing lateral support to five or more walls or columns, the lateral load to be resisted may be taken as __________ of the total vertical load on the most heavily loaded wall or column in the group
  1.    7 %
  2.    5 %
  3.    4 %
  4.    6 %
 Discuss Question
Answer: Option A. -> 7 %
Question 58. If ‘H’ is the height of wall between centers of supports, then the effective height of wall where concrete floors have a bearing on wall irrespective of the direction of span will be
  1.    0.75 H
  2.    1.5 H
  3.    0.85 H
  4.    1.0 H
 Discuss Question
Answer: Option A. -> 0.75 H
Question 59. If the horizontal cross-sectional area of a wall is 1200 cm², then the basic stress shall be multiplied by a reduction factor equal to
  1.    0.6
  2.    0.95
  3.    0.75
  4.    0.85
 Discuss Question
Answer: Option D. -> 0.85
Question 60. Cement mortars richer than 1 : 3 are not used in masonry because(i) There is no gain in strength of masonry(ii) There is high shrinkage(iii) They are prone to segregation
  1.    (i) and (ii) are correct
  2.    (ii) and (iii) are correct
  3.    Only (ii) is correct
  4.    (i), (ii) and (iii) are correct
 Discuss Question
Answer: Option A. -> (i) and (ii) are correct

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