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.Management Sciences
Category: Design of Masonry Structures
Consider the following statements?
1. Masonry in rich cement mortar though having good strength with high shrinkage is much liable for surface cracks.
2. Lime mortar possesses poor workability and poor water retentivity and also suffers high shrinkage.
3. 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?
A. 1,2 and 3
B. 1 and 2
C. 2 and 3
D. 1 and 3
Rich cement mortars are more liable to cracking as compared to lean mortars because rich mortars have________________?
A. high shrinkage
B. less strength
C. both (A) and (B)
D. none of above
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.
A. Both A and R are true and R is the correct explanation of A.
B. Both A and R are true but R is not the correct explanation of A.
C. A is true but R is false.
D. A is false but R is true.
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_______________?
A. 4 percent
B. 5 percent
C. 6 percent
D. 7 percent
of the total vertical load on the most heavily loaded wall or column in the group.
The mode of failure of a very short masonry member having h/t ratio of less than 4 is by _______________?
A. shear
B. vertical tensile splitting
C. buckling
D. any of the above
A high lime content in a composite cement-lime mortar results in______________?
Consider the following statements.
1. slow hardening.
2. quick setting.
3. weaker mortar.
select the correct statements.
A. 2 and 3 are correct
B. 1 and 2 are correct
C. 1 and 3 are correct
D. 1, 2 and 3 are correct
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.
A. Both A and R are true and R is the correct explanation of A.
B. Both A and R are true but R is not the correct explanation of A.
C. A is true but R is false.
D. A is false but R is true.
The effective height of free standing nonload bearing wall and column respectively will be_________________?
A. 1.OH and 1.OH
B. 1.5Handl.5H
C. 2.0Handl.5H
D. 2.0H and 2.0H
where H is the height of wall or column between centers of supports.
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