RCC Structures Design If T and R are the tread and rise of a stair which carries a load w per square metre on slope, the corresponding load per square metre of the horizontal area, is w √(R + T)/T w (R/T) w (R + T)/T w √(R² + T²)/T w √(R + T)/T w (R/T) w (R + T)/T w √(R² + T²)/T ANSWER DOWNLOAD EXAMIANS APP
RCC Structures Design The modular ratio ‘m’ of a concrete whose permissible compressive stress is ‘C’, may be obtained from the equation. m = 2800/3C m = 1400/3C m = 3500/3C m = 700/3C m = 2800/3C m = 1400/3C m = 3500/3C m = 700/3C 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 20 kg/cm² 10 kg/cm² 5 kg/cm² 15 kg/cm² 20 kg/cm² 10 kg/cm² 5 kg/cm² ANSWER DOWNLOAD EXAMIANS APP
RCC Structures Design The width of the flange of a T-beam should be less than One-third of the effective span of the T-beam Breadth of the rib plus twelve times the thickness of the slab Distance between the centers of T-beam Least of the above One-third of the effective span of the T-beam Breadth of the rib plus twelve times the thickness of the slab Distance between the centers of T-beam Least of the above 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/6Z) f = (P/A) + (M/Z) f = (P/'+ (Z/M) f = (A/P) + (M/Z) f = (P/A) + (M/6Z) f = (P/A) + (M/Z) f = (P/'+ (Z/M) f = (A/P) + (M/Z) 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 2A/P A/P P/A P/2A 2A/P A/P P/A P/2A ANSWER DOWNLOAD EXAMIANS APP
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