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
Related Mcqs:
- 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 - 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 - According to ISI recommendations, the maximum depth of stress block for balanced section of a beam of effective depth d is__________________?
A. 0.43 d
B. 0.55 d
C. 0.68 d
D. 0.85 d - 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 dwhere d is effective depth of beam[ES 2k]
- 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% - 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 - 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 - 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 - 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 - The recommended value of modular ratio for reinforced brick work is______________?
A. 18
B. 30
C. 40
D. 58
