Q.1
For designing masonry components of a structure, seismic forces provision in the design calculation is not necessary for buildings constructed in
Q.2
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
Q.3
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
Q.4
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?
Q.5
For earthquake resistant masonry buildings, the vertical distance between openings one above the other in a load bearing wall shall not be less than
Q.6
For earthquake resistant masonry buildings, where seismic coefficient is less than 0.08, the horizontal distance between two openings shall not be less than
Q.7
In a cavity wall, both leaves of which are load bearing, the effective thickness is taken as
Q.8
The mode of failure of a very short masonry member having h/t ratio of less than 4 is by
Q.9
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:
Q.10
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) Gable band 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 be made of reinforced concrete only.
of these statements, the correct statements are
Q.11
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 closer than 2 m in any stretch of a wall,
(iii) Chases should be provided near to bearings of beams and lintels.
Q.12
In the case of 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 the vertical direction may be allowed to the extent of
Q.13
Full restraint is provided by
(i) Foundation footing of a wall
(ii) Timber floor spanning on the wall and anchored to the wall
(iii) RCC slab with a minimum bearing of 10 cm on the wall
Q.14
Consider the following statements:
A high lime content in a composite cement-lime mortar results in
1. Slow hardening.
2. Quick setting.
3. Weaker mortar.
Q.15
The basic stress in masonry units having height to width ratio of 1.5 may be increased by a factor of
Q.16
The bending stress in a wall or column subjected to effective vertical load need not be considered, if the eccentricity ratio is
  • Less than or equal to 1/24
  • Less than or equal to 1/6
  • More than 1/24
  • Less than or equal to 1/12
Q.17
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
  • 4 %
  • 5 %
  • 6 %
  • 7 %
Q.18
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 closer than 2 m in any stretch of a wall,(iii) Chases should be provided near to bearings of beams and lintels.
  • (i) and (ii) are correct
  • (i) and (iii) are correct
  • (ii) and (iii) are correct
  • (i), (ii) and (iii) are correct
Q.19
In the case of 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 the vertical direction may be allowed to the extent of
  • 0.4 kg/cm²
  • 0.7 kg/cm²
  • 1.0 kg/cm²
  • 1.2 kg/cm²
Q.20
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. Codes:
  • Both A and R is true and R is the correct explanation of A
  • Both A and R is true but R is not a correct explanation of A
  • A is true but R is false
  • A is false but R is true
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