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 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 decreased by Pe/Z Is increased by Pe/Z Is increased by PZ/e Remains unchanged Is decreased by Pe/Z Is increased by Pe/Z Is increased by PZ/e Remains unchanged ANSWER DOWNLOAD EXAMIANS APP
RCC Structures Design On an absolutely rigid foundation base, the pressure will Be zero at the centre of the foundation Be more at the edges of the foundation Be uniform Not be uniform Be zero at the centre of the foundation Be more at the edges of the foundation Be uniform Not be uniform ANSWER DOWNLOAD EXAMIANS APP
RCC Structures Design If the bearing capacity of soil is 10 tonnes/cm² and the projection of plain concrete footing from walls, is a cm, the depth D of footing is D = 0.0775 a D = 0.775 √a D = 0.775 a D = 0.775 a² D = 0.0775 a D = 0.775 √a D = 0.775 a D = 0.775 a² ANSWER DOWNLOAD EXAMIANS APP
RCC Structures Design If P kg/m² is the upward pressure on the slab of a plain concrete footing whose projection on either side of the wall is a cm, the depth of foundation D is given by D = 0.0775 aP D = 0.07775 aP D = 0.00775 aP D = 0.775 Pa D = 0.0775 aP D = 0.07775 aP D = 0.00775 aP D = 0.775 Pa ANSWER DOWNLOAD EXAMIANS APP
RCC Structures Design The width of the flange of a T-beam should be less than Least of the above One-third of the effective span of the T-beam Distance between the centers of T-beam Breadth of the rib plus twelve times the thickness of the slab Least of the above One-third of the effective span of the T-beam Distance between the centers of T-beam Breadth of the rib plus twelve times the thickness of the slab ANSWER DOWNLOAD EXAMIANS APP
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