The centroid of compressive force, from the extreme compression fiber, in limit state design lies at a distance of__________________?

Related Mcqs:

1. Ratio of permissible stress in direct compression and bending compression is______________?

   A. less than 1
   B. between 1 and 1.5
   C. between 1.5 and 2.0
   D. greater than 2

2. The compressive strength of 100 mm cube as compared to 150 mm cube is always_______________?

   A. less
   B. more
   C. equal
   D. none of the above

3. Lap length in compression shall not be less than______________?

   A. 15 4>
   B. 20
   C. 24 (j)
   D. 30 (j)

   where (j) is diameter of bar

4. The maximum value of hoop compression in a dome is given by___________________?

   A. wR / 4d
   B. wR/2d
   C. wR/d
   D. 2wR/d

   where, w = load per unit area of surface of dome R = radius of curvature d = thickness of dome

5. For a cantilever of effective depth of 0.5m, the maximum span to satisfy vertical deflection limit is______________?

   A. 3.5 m
   B. 4 m
   C. 4.5 m
   D. 5 m

6. When shear stress exceeds the permissible limit in a slab, then it is reduced by____________?

   A. increasing the depth
   B. providing shear reinforcement
   C. using high strength steel
   D. using thinner bars but more in number

7. In working stress design, permissible bond stress in the case of deformed bars is more than that in plain bars by_______________?

   A. 10%
   B. 20%
   C. 30%
   D. 40%

8. If the depth of neutral axis for a singly reinforced rectangular section is represented by kd in working stress design, then the value of k for balanced section_______________?

   A. depends on as, only
   B. depends on aCbC only
   C. depends on both crst and acbc
   D. is independant of both ast and acbc where d is the effective depth, ast is per-missible stress in steel in tension and ocbc is permissible stress in concrete in bend¬ing compression

9. If nominal shear stress tv exceeds the design shear strength of concrete xc, the nominal shear reinforcement as per IS : 456-1978 shall be provided for carrying a shear stress equal to__________________?

   A. xv
   B. xc
   C. xv – TC
   D. Tv + Tc

10. In the design of a front counterfort in a counterfort retaining wall, the main reinforcement is provided on_______________?

    1. bottom face near counterfort
    2. top face near counterfort
    3. bottom face near centre of span
    4. top face near centre of span The correct answer is
    A. only (1)
    B. only (2)
    C. both (1) and (4)
    D. both (2)and (3)