6.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:

7.Water retentivity for brick masonry should not be less than

8.Minimum thickness of stiffening wall for 1 to 3 storeys shall not be less than

9.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 Of these statements

10.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: