DESIGN OF MASONRY STRUCTURES QUIZ

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 %

4 %

5 %

6 %

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 the correct explanation of A

A is false but R is true

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

A is true but R is false

TRUE ANSWER : ?
YOUR ANSWER : ?

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

5 to 8 cm

9 to 13 cm

14 to 18 cm

19 to 23 cm

TRUE ANSWER : ?
YOUR ANSWER : ?

For designing masonry components of a structure, seismic forces provision in the design calculation is not necessary for buildings constructed in

Zone I, II, III and IV

Zone I, II and III

Zone I only

Zone I and II

TRUE ANSWER : ?
YOUR ANSWER : ?

A 200 mm thick wall made of modular bricks is 5 m long between cross walls and 3.8 m clear height between RCC slabs at top and bottom. The slenderness ratio of the wall is

25

15

19

20

TRUE ANSWER : ?
YOUR ANSWER : ?

A 200 mm thick brick masonry wall made of modular bricks carries an axial load of 30 kN/m from wall above and an eccentric load of 20 kN/m from RCC floor acting at a distance of 47.5 mm from the centre line of the wall. The resultant eccentricity ratio is

0.1

0.105

0.095

0.09

TRUE ANSWER : ?
YOUR ANSWER : ?

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

20 cm

10 cm

15 cm

30 cm

TRUE ANSWER : ?
YOUR ANSWER : ?

In a cavity wall, both leaves of which are load bearing, the effective thickness is taken as

Two-third of the sum of thickness of both the leaves

Actual thickness of the stronger leaf

Sum of thickness of both leaves

Larger of (B) and (C)

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.

1 alone is correct

Neither 1 nor 2 is correct

2 alone is correct

Both 1 and 2 are correct

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

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 but R is not the correct explanation of A

TRUE ANSWER : ?
YOUR ANSWER : ?