Design of Masonry Structures
For strengthening a 50 m long and 5 m high straight compound wall built in brick work, which one of the following would be most suitable?

Using stronger bricks
Providing a deeper foundation
Using a richer mortar
Providing buttresses at certain intervals

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Design of Masonry Structures
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) and (iii) are correct
(i) and (iii) are correct
(i) and (ii) are correct
(ii) and (iii) are correct

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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?

1 and 2
1, 2 and 3
2 and 3
1 and 3

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