Questions and answers for exam Preparation

MCQs

Total Questions : 88 | Page 4 of 9 pages

Question 31. 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:

Both A and R is true and R is the correct explanation of A
Both A and R is true but R is not the correct explanation of A
A is true but R is false
A is false but R is true

Discuss Question

Answer: Option A. -> Both A and R is true and R is the correct explanation of A

Question 32. 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:

Both A and R is true and R is the correct explanation of A
Both A and R is true but R is not the correct explanation of A
A is true but R is false
A is false but R is true

Discuss Question

Answer: Option A. -> Both A and R is true and R is the correct explanation of A

Question 33. The effective height of free standing non-load bearing wall and column respectively will be

1.0H and 1.0H
1.5H and 1.5H
2.0H and 1.5H
2.0H and 2.0H

Discuss Question

Answer: Option D. -> 2.0H and 2.0H

Question 34. Consider the following statements: The use of relatively weak mortar
1. Will accommodate movements due to loads and, cracking if any, and will be distributed as thin hair cracks which are less noticeable or harmful.
2. Will result in reduction of stresses due to differential expansion of masonry units.

1 alone is correct
2 alone is correct
Both 1 and 2 are correct
Neither 1 nor 2 is correct

Discuss Question

Answer: Option C. -> Both 1 and 2 are correct

Question 35. Rich cement mortars are more liable to cracking as compared to lean mortars because rich mortars have

High shrinkage
Less strength
Both (A) and (B)
None of above

Discuss Question

Answer: Option A. -> High shrinkage

Question 36. 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

0.15 MPa
0.125 MPa
0.1 MPa
0.075 MPa

Discuss Question

Answer: Option A. -> 0.15 MPa

Question 37. Direct load carrying capacity of a brick masonry wall standing freely as against when it supports RC slab will be

More
Less
The same in both the cases
100 %

Discuss Question

Answer: Option B. -> Less

Question 38. 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

(i) and (ii) are correct
(ii) and (iii) are correct
(i) and (iii) are correct
(i) and (ii) and (iii) are correct

Discuss Question

Answer: Option A. -> (i) and (ii) are correct

Question 39. The timber floor not spanning on the masonry wall but properly anchored to the wall gives

Lateral restraint but not rotational restraint
Rotational restraint but not lateral restraint
Both lateral and rotational restraints
Neither lateral nor rotational restraint

Discuss Question

Answer: Option A. -> Lateral restraint but not rotational restraint

Question 40. 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 based on the codes given below. Codes: