Design of Masonry Structures Mcqs

This set of Civil Engineering Multiple Choice Questions & Answers (MCQs) focuses on “ Design of Masonry Structures ”. These Mcqs are chosen from a collection of most authoritative and best reference books on Civil Engineering. Our aim is to prepare an individual for competitive exams like NTS, GAT, ECAT, University and College entrance exams, Jobs and interviews. One should practice our MCQS to assimilate Design of Masonry Structures comprehensively.

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16.
Rich cement mortars are more liable to cracking as compared to lean mortars because rich mortars have________________?

High shrinkage

Less strength

Both (A) and (B)

None of above

18.
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 x height of shorter opening

Vt x height of longer opening

Ax height of shorter opening

Vi x height of longer opening

19.
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.

Both A and R are true and R is the correct explanation of A.

Both A and R are true but R is not the correct explanation of A.

A is true but R is false.

A is false but R is true.

20.
Minimum thickness of stiffening wall for 1 to 3 storeys shall not be less than_______________?

10 cm

15 cm

20 cm

30 cm

21.
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.

Both A and R are true and R is the correct explanation of A.

Both A and R are true but R is not the correct explanation of A.

A is true but R is false.

A is false but R is true.

22.
For designing masonry components of a structure, seismic forces provision in the design calculation is not necessary for buildings constructed in________________?

Zone I only

Zone I and II

Zone I, II and III

Zone I, II, III and IV

23.
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
select the correct statment.

(i) and (iii) are correct

(i) and (ii) are correct

(ii) and (iii) are correct

(i), (ii) and (iii) are correct

24.
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

25.
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________________?

0 6

0.75

0.85

0.95

26.
If H is the height of wall between centers of supports, then the effective height of wall where concrete floors have a bearing on wall irrespective of the direction of span will be________________?

0.75 H

0.85 H

1.0 H

1.5 H

27.
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_______________?

4 percent

5 percent

6 percent

7 percent

28.
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_________________?

0

Between 0 and 1

1

Greater than 1

29.
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.

Both A and R are true and R is the correct explanation of A.

Both A and R are true and R is not the correct explanation of A.

A is true but R is false.

A is false but R is true.

30.
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 lime mortar 1:2:9 is used
iii) shall not exceed 24 if cement mortar 1:6 is used
the correct statments is ?

(i) and (ii) are correct

(ii) and (iii) are correct

(i) and (iii) are correct

(i) and (ii) and (iii) are correct

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