DESIGN OF MASONRY STRUCTURES QUIZ

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

19 to 23 cm

9 to 13 cm

5 to 8 cm

14 to 18 cm

TRUE ANSWER : ?
YOUR ANSWER : ?

Direct load carrying capacity of a brick masonry wall standing freely as against when it supports RC slab will be

100 %

More

The same in both the cases

Less

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

A is true but R is false

A is false but R is true

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

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

19

15

20

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 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

A is false but R is true

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.

1 and 3 are correct

1, 2 and 3 are correct

2 and 3 are correct

1 and 2 are correct

TRUE ANSWER : ?
YOUR ANSWER : ?

Assertion A : For eccentricity ratio exceeding 1/6, effective thickness of masonry will get reduced.<br/>Reason R : For eccentricity ratio exceeding 1/6, there will be tension on one side of the member.<br/>Select your answer according to the codes give below:

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

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

TRUE ANSWER : ?
YOUR ANSWER : ?

For masonry built in 1 : 1 : 6 cement-lime-sand mix mortar or equivalent, the horizontal shear stress permissible on the area of a mortar bed joint is

0.075 MPa

0.125 MPa

0.1 MPa

0.15 MPa

TRUE ANSWER : ?
YOUR ANSWER : ?

If ‘H’ is the height of wall between centers of supports, then the effective height of wall where concrete floors have a bearing on wall irrespective of the direction of span will be

1.5 H

0.85 H

1.0 H

0.75 H

TRUE ANSWER : ?
YOUR ANSWER : ?

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

7.5 cm

10 cm

5 cm

15 cm

TRUE ANSWER : ?
YOUR ANSWER : ?