RCC Structures Design 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 0.796 % 0.496 % 0.596 % 0.696 % 0.796 % 0.496 % 0.596 % 0.696 % ANSWER DOWNLOAD EXAMIANS APP
RCC Structures Design Pick up the assumption for the design of a pre-stressed concrete member from the following: All listed here During deformation limits, Hook's law is equally applicable to concrete as well as to steel Variation of stress in reinforcement due to changes in external loading is negligible A transverse plane section remains a plane after bending All listed here During deformation limits, Hook's law is equally applicable to concrete as well as to steel Variation of stress in reinforcement due to changes in external loading is negligible A transverse plane section remains a plane after bending ANSWER DOWNLOAD EXAMIANS APP
RCC Structures Design An under-reinforced section means Steel provided is insufficient Steel provided on one face only Steel will yield first Steel is provided at the underside only Steel provided is insufficient Steel provided on one face only Steel will yield first Steel is provided at the underside only ANSWER DOWNLOAD EXAMIANS APP
RCC Structures Design A singly reinforced beam has breadth b, effective depth d, depth of neutral axis n and critical neutral axis n?. If fc and ft are permissible compressive and tensile stresses, the moment to resistance of the beam, is Atft (d - n/3) bn (fc/2) (d - n/3) All listed here ½ n₁ (1 - n₁/3) cbd² Atft (d - n/3) bn (fc/2) (d - n/3) All listed here ½ n₁ (1 - n₁/3) cbd² ANSWER DOWNLOAD EXAMIANS APP
RCC Structures Design ‘P’ is the pre-stressed force applied to the tendon of a rectangular pre-stressed beam whose area of cross section is ‘A’ and sectional modulus is ‘Z’. The maximum stress ‘f’ in the beam, subjected to a maximum bending moment ‘M’, is f = (A/P) + (M/Z) f = (P/A) + (M/6Z) f = (P/'+ (Z/M) f = (P/A) + (M/Z) f = (A/P) + (M/Z) f = (P/A) + (M/6Z) f = (P/'+ (Z/M) f = (P/A) + (M/Z) ANSWER DOWNLOAD EXAMIANS APP
RCC Structures Design The section of a reinforced beam where most distant concrete fibre in compression and tension in steel attains permissible stresses simultaneously, is called Balanced section All listed here Critical section Economic section Balanced section All listed here Critical section Economic section ANSWER DOWNLOAD EXAMIANS APP
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