Civil Engineering

Design Of Masonry Structures MCQs

Practice Design Of Masonry Structures MCQs for competitive exams.

Design Of Masonry Structures MCQs

Practice questions from this topic.

Assertion A : For identical strength, a composite cement-lime mortar is preferred over cement mortar. Reason R : Composite cement-lime mortar has higher drying shrinkage than cement mortar. Select your answer

  1. A. Both A and R is true and R is the correct explanation of A
  2. B. Both A and R is true but R is not a correct explanation of A
  3. C. A is true but R is false
  4. D. A is false but R is true
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The timber floor not spanning on the masonry wall but properly anchored to the wall gives

  1. A. Lateral restraint but not rotational restraint
  2. B. Rotational restraint but not lateral restraint
  3. C. Both lateral and rotational restraints
  4. D. Neither lateral nor rotational restraint
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Maximum slenderness ratio of load bearing walls for a dwelling having more than 2 storeys (i) Shall not exceed 12 if lime mortar is used (ii) Shall not exceed 18 if cement lime mortar 1 : 2 : 9 is used (iii) Shall not exceed 24 if cement mortar 1 : 6 is used

  1. A. (i) and (ii) are correct
  2. B. (ii) and (iii) are correct
  3. C. (i) and (iii) are correct
  4. D. (i) and (ii) and (iii) are correct
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Direct load carrying capacity of a brick masonry wall standing freely as against when it supports RC slab will be

  1. A. More
  2. B. Less
  3. C. The same in both the cases
  4. D. 100%
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For masonry built in 1 : 1 : 6 cement-lime-sand mix mortar or equivalent, the horizontal shear stress permissible on the area of a mortar bed joint is

  1. A. 0.15 MPa
  2. B. 0.125 MPa
  3. C. 0.1 MPa
  4. D. 0.075 MPa
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Rich cement mortars are more liable to cracking as compared to lean mortars because rich mortars have

  1. A. High shrinkage
  2. B. Less strength
  3. C. Both (A) and (B) D. None of above
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The effective height of free standing non-load bearing wall and column respectively will be

  1. A. 1.0H and 1.0H
  2. B. 1.5H and 1.5H
  3. C. 2.0H and 1.5H
  4. D. 2.0H and 2.0H
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Consider the following statements: The use of relatively weak mortar (i) Will accommodate movements due to loads and cracking if any and will be distributed as thin hair cracks which are less noticeable or harmful. (ii) Will result in reduction of stresses due to differential expansion of masonry units.

  1. A. (i) alone is correct
  2. B. (ii) alone is correct
  3. C. Both (i) and (ii) are correct
  4. D. Neither (i) nor (ii) is correct
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Assertion A : Limiting value of slenderness ratio for a column is less than that of a wall. Reason R : A column can buckle around either of the two horizontal axes while a wall can buckle around only one axis. Select your answer according to the codes given below:

  1. A. Both A and R is true and R is the correct explanation of A
  2. B. Both A and R is true but R is not the correct explanation of A
  3. C. A is true but R is false
  4. D. A is false but R is true
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Assertion A : From consideration of structural soundness and economy of design, most codes control the maximum slenderness ratio of masonry walls and columns. Reason R : By controlling the maximum slenderness ratio, failure is by excessive stress and not by buckling. Select your answer according to codes given below:

  1. A. Both A and R is true and R is the correct explanation of A
  2. B. Both A and R is true but R is not the correct explanation of A
  3. C. A is true but R is false
  4. D. A is false but R is true
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Assertion A : Lime based mortars give higher ratio of brickwork strength to mortar strength as compared to non-lime mortar. Reason R : Lime based mortars have lower bond strength as compared to non-lime mortars. Select your answer according to the codes given below:

  1. A. Both A and R is true and R is the correct explanation of A
  2. B. Both A and R is true but R is not the correct explanation of A
  3. C. A is true but R is false
  4. D. A is false but R is true
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Consider the following statements: (i) Masonry in rich cement mortar though having good strength with high shrinkage is much liable for surface cracks. (ii) Lime mortar possesses poor workability and poor water retentivity and also suffers high shrinkage. (iii) Masonry in lime mortar has better resistance against rain penetration and is less liable to crack when compared to masonry in cement mortar. Which of these statements are correct?

  1. A. (i), (ii) and (iii)
  2. B. (i) and (ii)
  3. C. (ii) and (iii)
  4. D. (i) and (iii)
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