DESIGN OF MASONRY STRUCTURES QUIZ

If the horizontal cross-sectional area of a wall is 1200 cm², then the basic stress shall be multiplied by a reduction factor equal to

0.85

0.95

0.6

0.75

TRUE ANSWER : ?
YOUR ANSWER : ?

Where a structural component or a system is providing lateral support to five or more walls or columns, the lateral load to be resisted may be taken as __________ of the total vertical load on the most heavily loaded wall or column in the group

6 %

7 %

5 %

4 %

TRUE ANSWER : ?
YOUR ANSWER : ?

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

1.5H and 1.5H

1.0H and 1.0H

2.0H and 1.5H

2.0H and 2.0H

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 false but R is true

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

A is true but R is false

TRUE ANSWER : ?
YOUR ANSWER : ?

The thickness of each leaf of a cavity wall shall not be less than

5 cm

15 cm

10 cm

7.5 cm

TRUE ANSWER : ?
YOUR ANSWER : ?

The bending stress in a wall or column subjected to effective vertical load need not be considered, if the eccentricity ratio is

Less than or equal to 1/6

Less than or equal to 1/12

Less than or equal to 1/24

More than 1/24

TRUE ANSWER : ?
YOUR ANSWER : ?

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

(ii) and (iii) are correct

(i) and (iii) are correct

(i) and (ii) are correct

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

TRUE ANSWER : ?
YOUR ANSWER : ?

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 a richer mortar

Providing buttresses at certain intervals

Providing a deeper foundation

Using stronger bricks

TRUE ANSWER : ?
YOUR ANSWER : ?

Consider the following statements: The use of relatively weak mortar 1. Will accommodate movements due to loads and, cracking if any, and will be distributed as thin hair cracks which are less noticeable or harmful. 2. Will result in reduction of stresses due to differential expansion of masonry units.

2 alone is correct

Neither 1 nor 2 is correct

1 alone is correct

Both 1 and 2 are correct

TRUE ANSWER : ?
YOUR ANSWER : ?

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:

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

A is false but R is true

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 : ?

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