Water retentivity for brick masonry should not be less than__________________?

Related Mcqs:

1. 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.

   the correct statements are?
   A. (i) and (ii)
   B. (i) and (iii)
   C. (ii) and (iv)
   D. (ii) and (iii)

2. For earthquake resistant masonry buildings, where seismic coefficient is less than 0.08, the horizontal distance between two openings shall not be less than_________________?

   A. Vt x height of shorter opening
   B. Vt x height of longer opening
   C. Ax height of shorter opening
   D. Vi x height of longer opening

3. Direct load carrying capacity of a brick masonry wall standing freely as against when it supports RC slab will be___________________?

   A. more
   B. less
   C. the same in both the cases
   D. 100%

4. 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 A. B. C. D. ?

   A.090
   B.095
   C.100
   D.105

5. 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

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_________________?

   A. 50 cm
   B. 60 cm
   C. 75 cm
   D. 100 cm

7. 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

8. The basic stress in masonry units having height to width ratio of 1.5 may be increased by a factor of_________________?

   A. 1.2
   B. 1.4
   C. 1.6
   D. 2.0

9. 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.

10. 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.