DESIGN OF MASONRY STRUCTURES QUIZ

For earthquake resistant masonry buildings, where seismic coefficient is less than 0.08, the horizontal distance between two openings shall not be less than

Vt x height of shorter opening

Ax height of shorter opening

Vi x height of longer opening

Vt x height of longer opening

TRUE ANSWER : ?
YOUR ANSWER : ?

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) are correct

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

(i) and (iii) are correct

(ii) and (iii) are correct

TRUE ANSWER : ?
YOUR ANSWER : ?

For masonry work with solid bricks, consistency of mortar should be

9 to 13 cm

14 to 18 cm

5 to 8 cm

19 to 23 cm

TRUE ANSWER : ?
YOUR ANSWER : ?

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:

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

A is false but R is true

TRUE ANSWER : ?
YOUR ANSWER : ?

In the case of panel wall subjected to horizontal loads at right angles to the plane of the wall, with the mortar not leaner than Ml type, tensile stress in bending in the vertical direction may be allowed to the extent of

0.7 kg/cm²

1.2 kg/cm²

0.4 kg/cm²

1.0 kg/cm²

TRUE ANSWER : ?
YOUR ANSWER : ?

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 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

TRUE ANSWER : ?
YOUR ANSWER : ?

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

A is true but R is false

A is false but R is true

Both A and R is true and R is the correct explanation of A

TRUE ANSWER : ?
YOUR ANSWER : ?

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 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

A is true but R is false

TRUE ANSWER : ?
YOUR ANSWER : ?

Assertion A : For identical strength, a composite cement-lime mortar is preferred over cement mortar.Reason R : Composite cement-lime mortar has higher drying shrinkage than cement mortar.Select your answer based on the codes given below. Codes:

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

Both A and R is true but R is not a correct explanation of A

TRUE ANSWER : ?
YOUR ANSWER : ?

The effective height of free standing non-load bearing wall and column respectively will be

1.5H and 1.5H

2.0H and 2.0H

2.0H and 1.5H

1.0H and 1.0H

TRUE ANSWER : ?
YOUR ANSWER : ?