RCC Structures Design According to I.S. : 456, slabs which span in two directions with corners held down, are assumed to be divided in each direction into middle strips and edge strips such that the width of the middle strip, is Two-third of the width of the slab Three-fourth of the width of the slab Four-fifth of the width of the slab Half of the width of the slab Two-third of the width of the slab Three-fourth of the width of the slab Four-fifth of the width of the slab Half of the width of the slab ANSWER DOWNLOAD EXAMIANS APP
RCC Structures Design If A is the area of the foundation of a retaining wall carrying a load W and retaining earth of weight 'w' per unit volume, the minimum depth (h) of the foundation from the free surface of the earth, is h = (W/Aw) [(1 - sin φ)/(1 + sin φ)]² h = (W/Aw) [(1 - sin φ)/(1 + sin φ)] h = (W/Aw) [(1 + sin φ)/(1 + sin φ)] h = √(W/Aw) [(1 - sin φ)/(1 + sin φ)]² h = (W/Aw) [(1 - sin φ)/(1 + sin φ)]² h = (W/Aw) [(1 - sin φ)/(1 + sin φ)] h = (W/Aw) [(1 + sin φ)/(1 + sin φ)] h = √(W/Aw) [(1 - sin φ)/(1 + sin φ)]² ANSWER DOWNLOAD EXAMIANS APP
RCC Structures Design The minimum cube strength of concrete used for a pre-stressed member, is 50 kg/cm² 250 kg/cm² 150 kg/cm² 350 kg/cm² 50 kg/cm² 250 kg/cm² 150 kg/cm² 350 kg/cm² ANSWER DOWNLOAD EXAMIANS APP
RCC Structures Design The minimum head room over a stair must be 205 cm 210 cm 230 cm 200 cm 205 cm 210 cm 230 cm 200 cm ANSWER DOWNLOAD EXAMIANS APP
RCC Structures Design ‘P’ is the pre-stressed force applied to the tendon of a rectangular pre-stressed beam whose area of cross section is ‘A’ and sectional modulus is ‘Z’. The maximum stress ‘f’ in the beam, subjected to a maximum bending moment ‘M’, is f = (P/A) + (M/Z) f = (A/P) + (M/Z) f = (P/'+ (Z/M) f = (P/A) + (M/6Z) f = (P/A) + (M/Z) f = (A/P) + (M/Z) f = (P/'+ (Z/M) f = (P/A) + (M/6Z) ANSWER DOWNLOAD EXAMIANS APP
RCC Structures Design The reinforced concrete beam which has width 25 cm, lever arm 40 cm, shear force 6t/cm², safe shear stress 5 kg/cm² and B.M. 24 mt, Is safe in shear Is unsafe in shear Needs redesigning Is over safe in shear Is safe in shear Is unsafe in shear Needs redesigning Is over safe in shear ANSWER DOWNLOAD EXAMIANS APP
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