RCC Structures Design In favourable circumstances a 15 cm concrete cube after 28 days, attains a maximum crushing strength 200 kg/cm² 300 kg/cm² 100 kg/cm² 400 kg/cm² 200 kg/cm² 300 kg/cm² 100 kg/cm² 400 kg/cm² ANSWER DOWNLOAD EXAMIANS APP
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 % 0.696 % 0.596 % 0.496 % 0.796 % 0.696 % 0.596 % 0.496 % ANSWER DOWNLOAD EXAMIANS APP
RCC Structures Design With usual notations the depth of the neutral axis of a balanced section, is given by mc/t = (d - n)/n t/mc = (d + n)/n mc/t = n/(d - n) t/mc = (d - n)/n mc/t = (d - n)/n t/mc = (d + n)/n mc/t = n/(d - n) t/mc = (d - n)/n ANSWER DOWNLOAD EXAMIANS APP
RCC Structures Design The minimum clear cover for R.C.C. columns shall be Greater of 25 mm or diameter Smaller of 40 mm or diameter Greater of 40 mm or diameter Smaller of 25 mm or diameter Greater of 25 mm or diameter Smaller of 40 mm or diameter Greater of 40 mm or diameter Smaller of 25 mm or diameter ANSWER DOWNLOAD EXAMIANS APP
RCC Structures Design If the length of a combined footing for two columns l meters apart is L and the projection on the left side of the exterior column is x, then the projection y on the right side of the exterior column, in order to have a uniformly distributed load, is (where x̅ is the distance of centre of gravity of column loads). y = L/2 - (l - x̅) y = L/2 - (l + x̅) y = L - (l - x̅) y = L/2 + (l - x̅) y = L/2 - (l - x̅) y = L/2 - (l + x̅) y = L - (l - x̅) y = L/2 + (l - x̅) ANSWER DOWNLOAD EXAMIANS APP
RCC Structures Design A reinforced concrete cantilever beam is 3.6 m long, 25 cm wide and has its lever arm 40 cm. It carries a load of 1200 kg at its free end and vertical stirrups can carry 1800 kg. Assuming concrete to carry one-third of the diagonal tension and ignoring the weight of the beam, the number of shear stirrups required, is 40 30 35 45 40 30 35 45 ANSWER DOWNLOAD EXAMIANS APP