RCC Structures Design In a doubly-reinforced beam if ‘c’ and ‘t’ are stresses in concrete and tension reinforcement, ‘d’ is the effective depth and ‘n’ is depth of critical neutral axis, the following relationship holds good mc/t = n/(d - n) (t + c)/n = (d + n)/n (m + c)/t = n/(d + n) mc/t = (d - n)/t mc/t = n/(d - n) (t + c)/n = (d + n)/n (m + c)/t = n/(d + n) mc/t = (d - n)/t 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 Not be uniform Be uniform Be zero at the centre of the foundation Be more at the edges of the foundation Not be uniform Be uniform ANSWER DOWNLOAD EXAMIANS APP
RCC Structures Design If R and T are rise and tread of a stair spanning horizontally, the steps are supported by a wall on one side and by a stringer beam on the other side, the steps are designed as beams of width T - R R - T R + T √(R² + T²) T - R R - T R + T √(R² + T²) ANSWER DOWNLOAD EXAMIANS APP
RCC Structures Design Dimensions of a beam need be changed if the shear stress is more than 10 kg/cm² 15 kg/cm² 25 kg/cm² 20 kg/cm² 10 kg/cm² 15 kg/cm² 25 kg/cm² 20 kg/cm² ANSWER DOWNLOAD EXAMIANS APP
RCC Structures Design In testing a pile by load test, pile platform is loaded with one and half times the design load and a maximum settlement is noted. The load is gradually removed and the consequent rebound is measured. For a safe pile, the net settlement (i.e. total settlement minus rebound) per tonne of test load should not exceed 25 mm 10 mm 15 mm 20 mm 25 mm 10 mm 15 mm 20 mm ANSWER DOWNLOAD EXAMIANS APP
RCC Structures Design The minimum cube strength of concrete used for a pre-stressed member, is 350 kg/cm² 150 kg/cm² 250 kg/cm² 50 kg/cm² 350 kg/cm² 150 kg/cm² 250 kg/cm² 50 kg/cm² ANSWER DOWNLOAD EXAMIANS APP
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