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.

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.

Full restraint is provided by__________________?

i) foundation footing of a wall
ii) timber floor spanning on the wall and anchored to the wall
iii) RCC slab with a minimum bearing of 10 cm on the wall

select the correct statment.

A. (i) and (iii) are correct
B. (i) and (ii) are correct
C. (ii) and (iii) are correct
D. (i), (ii) and (iii) are correct

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

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