RCC Structures Design The breadth of a ribbed slab containing two bars must be between 8 cm to 10 cm 12 cm to 15 cm 6 cm to 7.5 cm 10 cm to 12 cm 8 cm to 10 cm 12 cm to 15 cm 6 cm to 7.5 cm 10 cm to 12 cm ANSWER DOWNLOAD EXAMIANS APP
RCC Structures Design If ‘p’ is the net upward pressure on a square footing of side ‘b’ for a square column of side ‘a’, the maximum bending moment is given by M = pb (b - a)²/8 M = pb (c - a)/4 M = pb (b - a)²/4 M = pb (b + a)/8 M = pb (b + a)/8 M = pb (b - a)²/8 M = pb (c - a)/4 M = pb (b - a)²/4 M = pb (b + a)/8 M = pb (b + a)/8 ANSWER DOWNLOAD EXAMIANS APP
RCC Structures Design In a singly reinforced beam, if the permissible stress in concrete reaches earlier than that in steel, the beam section is called Critical section Under-reinforced section Over reinforced section Economic section Critical section Under-reinforced section Over reinforced section Economic section ANSWER DOWNLOAD EXAMIANS APP
RCC Structures Design If the maximum bending moment of a simply supported slab is M Kg.cm, the effective depth of the slab is (where Q is M.R. factor) M/10√Q M/100Q √(M/Q) √(M/100Q) M/10√Q M/100Q √(M/Q) √(M/100Q) ANSWER DOWNLOAD EXAMIANS APP
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 (t + c)/n = (d + n)/n (m + c)/t = n/(d + n) mc/t = n/(d - n) mc/t = (d - n)/t (t + c)/n = (d + n)/n (m + c)/t = n/(d + n) mc/t = n/(d - n) mc/t = (d - n)/t ANSWER DOWNLOAD EXAMIANS APP
RCC Structures Design As per IS : 456, the reinforcement in a column should not be less than 0.5% and not more than 5% of cross-sectional area 0.7% and not more than 7% of cross-sectional area 0.6% and not more than 6% of cross-sectional area 0.8% and not more than 8% of cross-sectional area 0.5% and not more than 5% of cross-sectional area 0.7% and not more than 7% of cross-sectional area 0.6% and not more than 6% of cross-sectional area 0.8% and not more than 8% of cross-sectional area ANSWER DOWNLOAD EXAMIANS APP
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