A. Steel is provided at the underside only
B. Steel provided is insufficient
C. Steel provided on one face only
D. Steel will yield first
Related Mcqs:
- A short column 20 cm × 20 cm in section is reinforced with 4 bars whose area of cross section is 20 sq. cm. If permissible compressive stresses in concrete and steel are 40 kg/cm2 and 300 kg/cm2, the Safe load on the column, should not exceed_______________?
A. 4120 kg
B. 41,200 kg
C. 412,000 kg
D. None of these - If the permissible compressive and tensile stresses in a singly reinforced beam are 50 kg/cm2 and 1400 kg/cm2 respectively and the modular ratio is 18, the percentage area At of the steel required for an economic section, is__________________?
A. 0.496 %
B. 0.596 %
C. 0.696 %
D. 0.796 %
- The section of a reinforced beam where most distant concrete fibre in compression and tension in steel attains permissible stresses simultaneously, is called_________________?
A. Balanced section
B. Economic section
C. Critical section
D. All the above - In a singly reinforced beam, if the permissible stress in concrete reaches earlier than that in steel, the beam section is called________________?
A. Under-reinforced section
B. Over reinforced section
C. Economic section
D. Critical section - If permissible working stresses in steel and concrete are respectively 1400 kg/cm2 and 80 kg/cm2 and modular ratio is 18, in a beam reinforced in tension side and of width 30 cm and having effective depth 46 cm, the lever arms of the section, is______________?
A. 37 cm
B. 38 cm
C. 39 cm
D. 40 cm
- The floor slab of a building is supported on reinforced cement floor beams. The ratio of the end and intermediate spans is kept______________?
A. 0.7
B. 0.8
C. 0.9
D. 0.6 - In a singly reinforced beam____________?
A. Compression is borne entirely by concrete
B. Steel possesses initial stresses when embedded in concrete
C. Plane sections transverse to the centre line of the beam before bending remain plane after bending
D. Elastic moduli for concrete and steel have different values within the limits of deformation of the beam - According to the steel beam theory of doubly reinforced beams______________?
A. Tension is resisted by tension steel
B. Compression is resisted by compression steel
C. Stress in tension steel equals the stress in compression steel
D. All the above - A singly reinforced concrete beam of 25 cm width and 70 cm effective depth is provided with 18.75 cm2 steel. If the modular ratio (m) is 15, the depth of the neutral axis, is_________________?
A. 20 cm
B. 25 cm
C. 30 cm
D. 35 cm - In a doubly-reinforced beam if and the effective depth and is depth of critical neutral axis, the following relationship holds good______________?
A. mc/t = n/(d – n)
B. (m + c)/t = n/(d + n)
C. (t + c)/n = (d + n)/n
D. mc/t = (d – n)/t