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

Related Mcqs:

1. 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%

2. If the permissible stress in steel in tension is 140 N/mm2, then the depth of neutral axis for a singly reinforced rectangular balanced section will be___________________?

   A. 0.35 d
   B. 0.40 d
   C. 0.45 d
   D. dependent on grade of concrete also

3. The average permissible stress in bond for plain bars in tension is_______________?

   A. increased by 10% for bars in compression
   B. increased by 25% for bars in compression
   C. decreased by 10% for bars in compression
   D. decreased by 25% for bars in compression

4. The permissible diagonal tensile stress in reinforced brick work is_____________?

   A. about 0.1 N/mm2
   B. zero
   C. 0.3 N/mm2 to 0.7 N/mm2
   D. about 1.0 N/mm2

5. 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

6. 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

7. The critical section for finding maximum bending moment for footing under masonry wall is located_______________?

   A. at the middle of the wall
   B. at the edge of the wall
   C. halfway between the middle and edge of the wall
   D. at a distance equal to effective depth of footing from the edge of the wall

8. The approximate value of the ratio between direct tensile strength and flexural strength is_____________?

   A. 0.33
   B. 0.5
   C. 0.75
   D. 1.0

9. The recommended value of modular ratio for reinforced brick work is______________?

   A. 18
   B. 30
   C. 40
   D. 58

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

    A. 0.367 xu
    B. 0.416 xu
    C. 0.446 xu
    D. 0.573 xu

    where xu is the depth of neutral axis at the limit state of collapse