Herewith below we have shared more than MCQs in Design of Masonry Structures of our Civil Engineering subject. This will be very useful to study MCQs in systematic Manner.
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Question 1 of 39
1. Question
Rich cement mortars are more liable to cracking as compared to lean mortars because rich mortars
have -
Question 2 of 39
2. Question
In a cavity wall, both leaves of which are load bearing, the effective thickness is taken as
-
Question 3 of 39
3. Question
Assertion A : For identical strength, a composite cement-lime mortar is preferred over cement
mortar.
Reason R : Composite cement-lime mortar has higher drying shrinkage than cement mortar.
Select your answer based on the codes given below: -
Question 4 of 39
4. Question
other in a load bearing wall shall not be less than
-
Question 5 of 39
5. Question
The mode of failure of a very short masonry member having h/t ratio of less than 4 is by
-
Question 6 of 39
6. Question
Where a structural component or a system is providing lateral support to five or more walls or
columns, thelateral load to be resisted may be taken as _________ of the total vertical load on
the most heavily loaded wall or column in the group -
Question 7 of 39
7. Question
Consider the following statements regarding bands to be provided for strengthening masonry
work in masonry buildings constructed in zone III, IV and V.
(i) Lintel band is provided at lintel level on partition walls,
(ii) Gableband is provided at top of gable masonry below the purlins,
(iii) The bands shall be to full width of the wall and not less than 7.5 cm in depth,
(iv) The bands shall bemade of reinforced concrete only.
Of thesestatements, thecorrect statements are -
Question 8 of 39
8. Question
The basic stress in masonry units having height to width ratio of 1.5 may be increased by a factor
of -
Question 9 of 39
9. Question
The timber floor not spanning on the masonry wall but properly anchored to the wall gives
-
Question 10 of 39
10. Question
A free standing brick wall 20 cm thick is subjected to a wind pressure of 75kg/m². The maximum
height of wall from stability consideration is -
Question 11 of 39
11. Question
Consider the following statements:
The use of relatively weak mortar
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.
2. Will result in reduction of stresses due to differential expansion of masonry units.
Of these statements -
Question 12 of 39
12. Question
If is the height of wall between centers of supports, then the effective height of wall where
concrete floors have a bearing on wall irrespective ofthe direction of span will be -
Question 13 of 39
13. Question
For designing masonry components of a structure, seismic forces provision in the design
calculation is not necessary for buildings constructedin -
Question 14 of 39
14. Question
A 200 mmthick 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 -
Question 15 of 39
15. Question
Water retentivity for brick masonry should not be less than
-
Question 16 of 39
16. Question
The bending stress in a wall or column subjected to effective vertical load need not be considered,
if the eccentricity ratio is -
Question 17 of 39
17. Question
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: -
Question 18 of 39
18. Question
In the caseof panel wall subjected to horizontal loads at right angles to the plane of the wall, with
the mortar not leaner than Ml type, tensile stress in bending in thevertical direction may be
allowed to the extentof -
Question 19 of 39
19. Question
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 -
Question 20 of 39
20. Question
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? -
Question 21 of 39
21. Question
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 percode is -
Question 22 of 39
22. Question
For masonrywork with solid bricks, consistency of mortar should be
-
Question 23 of 39
23. Question
Consider the following statements regarding provision of chases in masonry,
(i) No chase should be permitted in a half brick load-bearing wall,
(ii) Vertical chases should not be closerthan 2 m in any stretch of a wall,
(iii) Chases should be provided near to bearings of beams and lintels. Of these statements -
Question 24 of 39
24. Question
For masonrybuilt 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 -
Question 25 of 39
25. Question
Maximum slenderness ratio of load bearing walls for a dwelling having more than 2 storeys
(i) Shall not exceed 12 if lime mortar is used
(ii) Shall not exceed 18 if cement limemortar 1 : 2 : 9 is used
(iii) Shall not exceed 24 if cement mortar 1 : 6 is used -
Question 26 of 39
26. Question
Full restraint is provided by
(i) Foundation footing of a wall
(ii) Timber floorspanning on the wall and anchored to the wall
(iii) RCC slab with a minimum bearing of 10 cm on the wall -
Question 27 of 39
27. Question
Consider the following statements:
A high lime content in a compositecement-lime mortar results in
1. Slow hardening.
2. Quick setting.
3. Weaker mortar. Of these statements -
Question 28 of 39
28. Question
The effective height of free standing non-load bearing wall and column respectively will be
Where H is the height of wall or column between centers of supports -
Question 29 of 39
29. Question
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: -
Question 30 of 39
30. Question
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: -
Question 31 of 39
31. Question
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 -
Question 32 of 39
32. Question
The thickness of each leaf of a cavity wall shall not be less than
-
Question 33 of 39
33. Question
Minimum compressive strength in N/mm² for H1 type mortar used for masonry is
-
Question 34 of 39
34. Question
Direct load carrying capacity of a brick masonry wall standing freely as against when it supports RC
slab will be -
Question 35 of 39
35. Question
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: -
Question 36 of 39
36. Question
If the horizontal cross-sectional area of a wall is 1200 cm², then the basic stress shall be multiplied
by a reduction factor equal to -
Question 37 of 39
37. Question
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? -
Question 38 of 39
38. Question
Minimum thickness of stiffening wall for 1 to 3 storeys shall not be less than
-
Question 39 of 39
39. Question
Cement mortars richer than 1 : 3 are not used in masonry because
(i) There is no gain in strength of masonry
(ii) There is high shrinkage
(iii) They are prone to segregation
Of these statements