11. The thickness of each leaf of a cavity wall shall not be less than
a) 5 cm
b) 7.5 cm
c) 10 cm
d) 15 cm
Ans: b
12. 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
a) 0 6
b) 0.75
c) 0.85
d) 0.95
Ans: c
13. 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
a) 0.64 m
b) 0.96 m
c) 1.28 m
d) 1.5 m
Ans:a
14. 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
Ans:a
15. 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:
a) Both A and R are true and R is the correct explanation of A.
b) Both A and R are true and R is not the correct explanation of A.
c) A is true but R is false.
d) A is false but R is true.
Ans:a
16. 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 per code is
a) 10%
b) 25%
c) 33 1/3%
d) 50%
Ans:b
17. 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
Ans:b
18. 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
Ans:a
19. 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:
a) Both A and R are true and R is the correct explanation of A.
b) Both A and R are true but R is not .the correct explanation of A.
c) A is true but R is false.
d) A is false but R is true.
Ans:a
20 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
Ans:a
Read MOre Quesations:
Design of Masonry Structures MCQs Part1
Design of Masonry Structures MCQs Part2
a) 5 cm
b) 7.5 cm
c) 10 cm
d) 15 cm
Ans: b
12. 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
a) 0 6
b) 0.75
c) 0.85
d) 0.95
Ans: c
13. 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
a) 0.64 m
b) 0.96 m
c) 1.28 m
d) 1.5 m
Ans:a
14. 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
Ans:a
15. 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:
a) Both A and R are true and R is the correct explanation of A.
b) Both A and R are true and R is not the correct explanation of A.
c) A is true but R is false.
d) A is false but R is true.
Ans:a
16. 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 per code is
a) 10%
b) 25%
c) 33 1/3%
d) 50%
Ans:b
17. 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
Ans:b
18. 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
Ans:a
19. 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:
a) Both A and R are true and R is the correct explanation of A.
b) Both A and R are true but R is not .the correct explanation of A.
c) A is true but R is false.
d) A is false but R is true.
Ans:a
20 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
Ans:a
Read MOre Quesations:
Design of Masonry Structures MCQs Part1
Design of Masonry Structures MCQs Part2
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