According to ISI recommendations, the maximum depth of stress block for balanced section of a beam of effective depth d is__________________?

Related Mcqs:

1. According to Whitney’s theory, depth of stress block for a balanced section of a concrete beam is limited to_______________?

   A. 0.43 d B. 0.537 d C. 0.68 d D. 0.85 d where d is effective depth of beam[ES 2k]...

2. As per Whitney’s theory, the maximum moment of resistance of the balanced section of a beam of width b and effective depth d is given by_______________?

   A. ^acybd2 B. ^acybd2 C. 0.185acybd2 D. 0.43acybd2 where acy is the cylinder compressive strength of concrete...

3. If the depth of actual neutral axis in a beam is more than the depth of critical neutral axis, then the beam is called________________?

   A. balanced beam B. under-reinforced beam C. over-reinforced beam D. none of the above...

4. A continuous beam is deemed to be a deep beam when the ratio of effective span to overall depth (1/D. is less than__________________?

   A. 1.5 B. 2.0 C. 2.5 D. 3.0...

5. 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...

6. 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...

7. For a simply supported beam of span 15m, the minimum effective depth to satisfy the vertical deflection limits should be________________?

   A. 600 mm B. 750 mm C. 900 mm D. more than 1 m...

8. 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...

9. 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%...

10. 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...