Design Of Masonry Structures(Civil Engineering ) Questions and Answers
Question 1. A free standing brick wall 20 cm thick is subjected to a wind pressure of 75 kg/m2. The maximum height of wall from stability consideration is
0.64 m
0.96 m
1.28 m
1.5 m
Explanation:-
Answer: Option A. -> 0.64 m
Question 2. For masonry work with solid bricks, consistency of mortar should be
5 to 8 cm
9 to 13 cm
14 to 18 cm
19 to 23 cm
Explanation:-
Answer: Option B. -> 9 to 13 cm
Question 3. The thickness of each leaf of a cavity wall shall not be less than
5 cm
7.5 cm
10 cm
15 cm
Explanation:-
Answer: Option B. -> 7.5 cm
Question 4. Water retentivity for brick masonry should not be less than
50%
60%
70%
80%
Explanation:-
Answer: Option C. -> 70%
Question 5. Minimum thickness of stiffening wall for 1 to 3 storeys shall not be less than
10 cm
15 cm
20 cm
30 cm
Explanation:-
Answer: Option A. -> 10 cm
Question 6. For earthquake resistant masonry buildings, the vertical distance between openings one above the other in a load bearing wall shall not be less than
50 cm
60 cm
75 cm
100 cm
Explanation:-
Answer: Option B. -> 60 cm
Question 7. 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 × height of shorter opening
Vt × height of longer opening
Vi × height of shorter opening
Vi × height of longer opening
Explanation:-
Answer: Option A. -> Vt × height of shorter opening
Question 8. Consider the following statements: A high lime content in a composite cement-lime mortar results in (i) Slow hardening (ii) Quick setting (iii) Weaker mortar
(ii) and (iii) are correct
(i) and (ii) are correct
(i) and (iii) are correct
(i), (ii) and (iii) are correct
Explanation:-
Answer: Option C. -> (i) and (iii) are correct
Question 9. 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
(i) and (iii) are correct
(i) and (ii) are correct
(ii) and (iii) are correct
(i), (ii) and (iii) are correct
Explanation:-
Answer: Option D. -> (i), (ii) and (iii) are correct
Question 10. 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 M1 type, tensile stress in bending in the vertical direction may be allowed to the extent of
