RCC Structures Design ‘P’ is the pre-stressed force applied to tendon of a rectangular pre-stressed beam whose area of cross section is ‘A’ and sectional modulus is ‘Z’. The minimum stress ‘f’ on the beam subjected to a maximum bending moment ‘M’ is f = (P/A) - (M/6Z) f = (P/'- (Z/M) f = (P/A) - (M/Z) f = (A/P) - (M/Z) f = (P/A) - (M/6Z) f = (P/'- (Z/M) f = (P/A) - (M/Z) f = (A/P) - (M/Z) ANSWER DOWNLOAD EXAMIANS APP
RCC Structures Design According to I.S. : 456 specifications, the safe diagonal tensile stress for M 150 grade concrete, is 15 kg/cm² 5 kg/cm² 10 kg/cm² 20 kg/cm² 15 kg/cm² 5 kg/cm² 10 kg/cm² 20 kg/cm² ANSWER DOWNLOAD EXAMIANS APP
RCC Structures Design If the maximum shear stress at the end of a simply supported R.C.C. beam of 16 m effective span is 10 kg/cm², the length of the beam having nominal reinforcement, is 12 cm 8 cm 6 cm 10 cm 12 cm 8 cm 6 cm 10 cm ANSWER DOWNLOAD EXAMIANS APP
RCC Structures Design Top bars are extended to the projecting parts of the combined footing of two columns L distance apart for a distance of One-fourth the distance of projection Half the distance of projection 0.1 L from the outer edge of column 0.1 L from the centre edge of column One-fourth the distance of projection Half the distance of projection 0.1 L from the outer edge of column 0.1 L from the centre edge of column ANSWER DOWNLOAD EXAMIANS APP
RCC Structures Design If q is the punching shear resistance per unit area a, is the side of a square footing for a column of side b, carrying a weight W including the weight of the footing, the depth (D) of the footing from punching shear consideration, is D = W (a - b)/4a²bq D = W (a² - b²)/4abq D = W (a² - b²)/8a²bq D = W (a² - b²)/4a²bq D = W (a - b)/4a²bq D = W (a² - b²)/4abq D = W (a² - b²)/8a²bq D = W (a² - b²)/4a²bq ANSWER DOWNLOAD EXAMIANS APP
RCC Structures Design The minimum cube strength of concrete used for a pre-stressed member, is 150 kg/cm² 50 kg/cm² 350 kg/cm² 250 kg/cm² 150 kg/cm² 50 kg/cm² 350 kg/cm² 250 kg/cm² ANSWER DOWNLOAD EXAMIANS APP
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