DESIGN OF MASONRY STRUCTURES QUIZ

Minimum compressive strength in N/mm² for H1 type mortar used for masonry is

10

7.5

3

5

TRUE ANSWER : ?
YOUR ANSWER : ?

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

1.0H and 1.0H

1.5H and 1.5H

2.0H and 2.0H

2.0H and 1.5H

TRUE ANSWER : ?
YOUR ANSWER : ?

If the ratio of center to center spacing of intersecting walls to actual thickness of intersecting wall is more than 20, then the stiffening coefficient for wall proper will be

Between 0 and 1

Greater than 1

1

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 but R is not the correct explanation of A

A is true but R is false

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

A is false but R is true

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:

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

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 only

Zone I, II and III

Zone I and II

Zone I, II, III and IV

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 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 : ?

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 longer opening

Vt x height of shorter opening

Ax height of shorter opening

Vi x height of longer opening

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

0.09

0.095

TRUE ANSWER : ?
YOUR ANSWER : ?

Water retentivity for brick masonry should not be less than

50 %

60 %

70 %

80 %

TRUE ANSWER : ?
YOUR ANSWER : ?