DESIGN OF MASONRY STRUCTURES QUIZ

Water retentivity for brick masonry should not be less than

80 %

70 %

60 %

50 %

TRUE ANSWER : ?
YOUR ANSWER : ?

Consider the following statements: The use of relatively weak mortar<br/>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.<br/>2. Will result in reduction of stresses due to differential expansion of masonry units.

Neither 1 nor 2 is correct

Both 1 and 2 are correct

2 alone is correct

1 alone is correct

TRUE ANSWER : ?
YOUR ANSWER : ?

For earthquake resistant masonry buildings, the vertical distance between openings one above the other in a load bearing wall shall not be less than

60 cm

75 cm

100 cm

50 cm

TRUE ANSWER : ?
YOUR ANSWER : ?

If the eccentricity ratio is more than 1/24, then increase in the permissible stress in the design of wall subjected to eccentric loading as per code is

25 %

10 %

50 %

33? %

TRUE ANSWER : ?
YOUR ANSWER : ?

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?

2 and 3

1, 2 and 3

1 and 2

1 and 3

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

7 %

5 %

4 %

6 %

TRUE ANSWER : ?
YOUR ANSWER : ?

A free standing brick wall 20 cm thick is subjected to a wind pressure of 75 kg/m². The maximum height of wall from stability consideration is

0.64 m

1.5 m

0.96 m

1.28 m

TRUE ANSWER : ?
YOUR ANSWER : ?

Consider the following statements:A high lime content in a composite cement-lime mortar results in1. Slow hardening.2. Quick setting.3. Weaker mortar.

2 and 3 are correct

1, 2 and 3 are correct

1 and 2 are correct

1 and 3 are correct

TRUE ANSWER : ?
YOUR ANSWER : ?

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

2.0H and 1.5H

1.0H and 1.0H

2.0H and 2.0H

1.5H and 1.5H

TRUE ANSWER : ?
YOUR ANSWER : ?

The basic stress in masonry units having height to width ratio of 1.5 may be increased by a factor of

1.4

1.2

1.6

2

TRUE ANSWER : ?
YOUR ANSWER : ?

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