The average permissible stress in bond for plain bars in tension 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. 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

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. The ratio of the diameter of reinforcing bars and the slab thickness is_______________?

   A. 1/4
   B. 1/5
   C. 1/6
   D. 1/8

7. If a beam fails in bond, then its bond strength can be increased most economi-cally by___________?

   A. increasing the depth of beam
   B. using thinner bars but more in number
   C. using thicker bars but less in number
   D. providing vertical stirrups

8. 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

9. For a reinforced concrete section, the shape of shear stress diagram is_______________?

   A. wholly parabolic
   B. wholly rectangular
   C. parabolic above neutral axis and rectangular below neutral axis
   D. rectangular above neutral axis and parabolic below neutral axis

10. The design yield stress of steel according to IS: 456-1978 is_______________?

    A. 0.37 fy
    B. 0.57 fy
    C. 0.67 fy
    D. 0.87 fy

    where fy is the characteristic yield strength of steel