RCC Structures Design The system in which high tensile alloy steel bars (silica manganese steel) are used as pre-stressing tendons, is known as C.L. standard system Lee-McCall system Magnel-Blaton system Freyssinet system C.L. standard system Lee-McCall system Magnel-Blaton system Freyssinet system ANSWER DOWNLOAD EXAMIANS APP
RCC Structures Design If p₁ and p₂ are effective lateral loadings at the bottom and top exerted by a level earth subjected to a super-load on the vertical face of height h of a retaining wall, the horizontal pressure p per unit length of the wall, is [(p₁ - p₂)/2] h [(p₁ + p₂)/4] h [(p₁ + p₂)/2] h (p₁ - p₂) ⅔h [(p₁ - p₂)/2] h [(p₁ + p₂)/4] h [(p₁ + p₂)/2] h (p₁ - p₂) ⅔h 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 P/2A A/P P/A 2A/P P/2A A/P P/A ANSWER DOWNLOAD EXAMIANS APP
RCC Structures Design If the tendon is placed at an eccentricity e below the centroidal axis of the longitudinal axis of a rectangular beam (sectional modulus Z and stressed load P in tendon) the stress at the extreme top edge Remains unchanged Is increased by Pe/Z Is decreased by Pe/Z Is increased by PZ/e Remains unchanged Is increased by Pe/Z Is decreased by Pe/Z Is increased by PZ/e ANSWER DOWNLOAD EXAMIANS APP
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 = (A/P) - (M/Z) f = (P/'- (Z/M) f = (P/A) - (M/Z) f = (P/A) - (M/6Z) f = (A/P) - (M/Z) f = (P/'- (Z/M) f = (P/A) - (M/Z) f = (P/A) - (M/6Z) ANSWER DOWNLOAD EXAMIANS APP
RCC Structures Design According to load factor method, the permissible load ‘W’ on a short column reinforced with longitudinal bars and lateral stirrups, is Stress in concrete × area of concrete + Stress in steel × area of steel None of these Stress in steel × area of steel Stress in concrete × area of concrete Stress in concrete × area of concrete + Stress in steel × area of steel None of these Stress in steel × area of steel Stress in concrete × area of concrete ANSWER DOWNLOAD EXAMIANS APP
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