Design of Masonry Structures
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 is false but R is true
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

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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

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

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

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

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Design of Masonry Structures
Assertion A : For eccentricity ratio exceeding 1/6, effective thickness of masonry will get reduced.
Reason R : For eccentricity ratio exceeding 1/6, there will be tension on one side of the member.
Select your answer according to the codes give below:

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

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