RCC Structures Design If ‘A’ is the sectional area of a pre-stressed rectangular beam provided with a tendon pre-stressed by a force ‘P’ through its centroidal longitudinal axis, the compressive stress in concrete, is P/2A 2A/P P/A A/P P/2A 2A/P P/A A/P ANSWER DOWNLOAD EXAMIANS APP
RCC Structures Design A pre-cast pile generally used, is Circular Octagonal Square with corners chamfered Square Circular Octagonal Square with corners chamfered Square ANSWER DOWNLOAD EXAMIANS APP
RCC Structures Design If the tendon is placed at an eccentricity e below the centroidal axis of the longitudinal axis of a rectangular beam (sectional modulus Z and stressed load P in tendon) the stress at the extreme top edge Is increased by Pe/Z Remains unchanged Is decreased by Pe/Z Is increased by PZ/e Is increased by Pe/Z Remains unchanged Is decreased by Pe/Z Is increased by PZ/e ANSWER DOWNLOAD EXAMIANS APP
RCC Structures Design The length of the lap in a compression member is kept greater than bar diameter x (Permissible stress in bar / Five times the bond stress) or 18 bar diameters 30 bar diameters 24 bar diameters 12 bar diameters 18 bar diameters 30 bar diameters 24 bar diameters 12 bar diameters ANSWER DOWNLOAD EXAMIANS APP
RCC Structures Design The stem of a cantilever retaining wall which retains earth level with top is 6 m. If the angle of repose and weight of the soil per cubic metre are 30° and 2000 kg respectively, the effective width of the stem at the bottom, is 54.5 53.5 51.5 52.5 54.5 53.5 51.5 52.5 ANSWER DOWNLOAD EXAMIANS APP
RCC Structures Design To ensure uniform pressure distribution, the thickness of the foundation, is Increased gradually towards the edge Kept uniform throughout Decreased gradually towards the edge Kept zero at the edge Increased gradually towards the edge Kept uniform throughout Decreased gradually towards the edge Kept zero at the edge ANSWER DOWNLOAD EXAMIANS APP
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