RCC Structures Design In favourable circumstances a 15 cm concrete cube after 28 days, attains a maximum crushing strength 400 kg/cm² 300 kg/cm² 200 kg/cm² 100 kg/cm² 400 kg/cm² 300 kg/cm² 200 kg/cm² 100 kg/cm² 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 Remains unchanged Is increased by Pe/Z Is increased by PZ/e Is decreased by Pe/Z Remains unchanged Is increased by Pe/Z Is increased by PZ/e Is decreased by Pe/Z ANSWER DOWNLOAD EXAMIANS APP
RCC Structures Design A singly reinforced concrete beam of 25 cm width and 70 cm effective depth is provided with 18.75 cm² steel. If the modular ratio (m) is 15, the depth of the neutral axis, is 35 cm 25 cm 20 cm 30 cm 35 cm 25 cm 20 cm 30 cm ANSWER DOWNLOAD EXAMIANS APP
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/A A/P 2A/P P/2A P/A A/P 2A/P P/2A ANSWER DOWNLOAD EXAMIANS APP
RCC Structures Design If the maximum dip of a parabolic tendon carrying tension P is h and the effective length of the pre-stressed beam is L, the upward uniform pressure will be 8hp/l² 8hl/p² 8hl/p 8hp/l 8hp/l² 8hl/p² 8hl/p 8hp/l ANSWER DOWNLOAD EXAMIANS APP
RCC Structures Design In a combined footing if shear stress exceeds 5 kg/cm², the nominal stirrups provided are: 10 legged 8 legged 6 legged 12 legged 10 legged 8 legged 6 legged 12 legged ANSWER DOWNLOAD EXAMIANS APP
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