# Design of Masonry Structures Solved MCQs

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1.

## Rich cement mortars are more liable to cracking as compared to lean mortars because rich mortars have

A. high shrinkage
B. less strength
C. both (a) and (b)
D. none of above
2.

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

A. sum of thickness of both leaves
B. two-third of the sum of thickness of both the leaves
C. actual thickness of the stronger leaf
D. larger of (b) and (c)
Answer» D. larger of (b) and (c)
3.

A. 50 cm
B. 60 cm
C. 75 cm
D. 100 cm
4.

## The mode of failure of a very short masonry member having h/t ratio of less than 4 is by

A. shear
B. vertical tensile splitting
C. buckling
D. any of the above
5.

A. 1.2
B. 1.4
C. 1.6
D. 2.0
6.

## The timber floor not spanning on the masonry wall but properly anchored to the wall gives

A. lateral restraint but not rotational restraint
B. rotational restraint but not lateral restraint
C. both lateral and rotational restraints
D. neither lateral nor rotational restraint
Answer» A. lateral restraint but not rotational restraint
7.

A. 0.64 m
B. 0.96 m
C. 1.28 m
D. 1.5 m
8.

A. 0.75 h
B. 0.85 h
C. 1.0 h
D. 1.5 h
9.

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

A. zone i only
B. zone i and ii
C. zone i, ii and iii
D. zone i, ii, iii and iv
Answer» B. zone i and ii
10.

A. 15
B. 19
C. 20
D. 25
11.

A. 50 %
B. 60 %
C. 70 %
D. 80 %
12.

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

A. less than or equal to 1/24
B. less than or equal to 1/6
C. more than 1/24
D. less than or equal to 1/12
Answer» A. less than or equal to 1/24
13.

## 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

A. 0
B. between 0 and 1
C. 1
D. greater than 1
14.

A. 10 %
B. 25 %
D. 50 %
15.

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

A. 5 to 8 cm
B. 9 to 13 cm
C. 14 to 18 cm
D. 19 to 23 cm
Answer» B. 9 to 13 cm
16.

A. 0.15 mpa
B. 0.125 mpa
C. 0.1 mpa
D. 0.075 mpa
17.

A. 5 cm
B. 7.5 cm
C. 10 cm
D. 15 cm
18.

A. 3
B. 5
C. 7.5
D. 10
19.

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

A. more
B. less
C. the same in both the cases
D. 100 %
20.

A. 0 6
B. 0.75
C. 0.85
D. 0.95
21.

## 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?

A. providing buttresses at certain intervals
B. providing a deeper foundation
C. using a richer mortar
D. using stronger bricks
Answer» A. providing buttresses at certain intervals
22.

A. 10 cm
B. 15 cm
C. 20 cm
D. 30 cm