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 ½ n₁ (1 - n₁/3) cbd² Atft (d - n/3) All listed here bn (fc/2) (d - n/3) ½ n₁ (1 - n₁/3) cbd² Atft (d - n/3) All listed here bn (fc/2) (d - n/3) ANSWER DOWNLOAD EXAMIANS APP
RCC Structures Design For a ribbed slab Clear spacing between ribs shall not be greater than 4.5 cm Overall depth of the slab shall not exceed four times the breadth of the rib All listed here Width of the rib shall not be less than 7.5 cm Clear spacing between ribs shall not be greater than 4.5 cm Overall depth of the slab shall not exceed four times the breadth of the rib All listed here Width of the rib shall not be less than 7.5 cm ANSWER DOWNLOAD EXAMIANS APP
RCC Structures Design The system in which high tensile alloy steel bars (silica manganese steel) are used as pre-stressing tendons, is known as Freyssinet system C.L. standard system Magnel-Blaton system Lee-McCall system Freyssinet system C.L. standard system Magnel-Blaton system Lee-McCall system ANSWER DOWNLOAD EXAMIANS APP
RCC Structures Design In favourable circumstances a 15 cm concrete cube after 28 days, attains a maximum crushing strength 200 kg/cm² 400 kg/cm² 300 kg/cm² 100 kg/cm² 200 kg/cm² 400 kg/cm² 300 kg/cm² 100 kg/cm² ANSWER DOWNLOAD EXAMIANS APP
RCC Structures Design The width of the rib of a T-beam, is generally kept between 1/3 to 1/2 of rib depth 1/7 to 1/3 of rib depth 1/2 to 3/4 of rib depth 1/3 to 2/3 of rib depth 1/3 to 1/2 of rib depth 1/7 to 1/3 of rib depth 1/2 to 3/4 of rib depth 1/3 to 2/3 of rib depth ANSWER DOWNLOAD EXAMIANS APP
RCC Structures Design The modular ratio ‘m’ of a concrete whose permissible compressive stress is ‘C’, may be obtained from the equation. m = 1400/3C m = 2800/3C m = 700/3C m = 3500/3C m = 1400/3C m = 2800/3C m = 700/3C m = 3500/3C ANSWER DOWNLOAD EXAMIANS APP