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/6Z) f = (P/A) - (M/Z) f = (A/P) - (M/Z) f = (P/'- (Z/M) f = (P/A) - (M/6Z) f = (P/A) - (M/Z) ANSWER DOWNLOAD EXAMIANS APP
RCC Structures Design A pile of length ‘L’ carrying a uniformly distributed load ‘W’ per metre length is suspended at the centre and from other two points 0.15 L from either end ; the maximum hogging moment will be WL²/90 WL²/15 WL²/30 WL²/60 WL²/90 WL²/15 WL²/30 WL²/60 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 Economic section Critical section Over reinforced section Under-reinforced section Economic section Critical section Over reinforced section Under-reinforced section ANSWER DOWNLOAD EXAMIANS APP
RCC Structures Design A continuous beam shall be deemed to be a deep beam if the ratio of effective span to overall depth, is Less than 2 2.5 Less than 2.5 2 Less than 2 2.5 Less than 2.5 2 ANSWER DOWNLOAD EXAMIANS APP
RCC Structures Design Pick up the assumption for the design of a pre-stressed concrete member from the following: During deformation limits, Hook's law is equally applicable to concrete as well as to steel A transverse plane section remains a plane after bending Variation of stress in reinforcement due to changes in external loading is negligible All listed here During deformation limits, Hook's law is equally applicable to concrete as well as to steel A transverse plane section remains a plane after bending Variation of stress in reinforcement due to changes in external loading is negligible All listed here ANSWER DOWNLOAD EXAMIANS APP
RCC Structures Design An R.C.C beam of 25 cm width has a clear span of 5 metres and carries a U.D.L. of 2000 kg/m inclusive of its self weight. If the lever arm of the section is 45 cm., the beam is Is safe with stirrups Safe in shear Needs revision of the section Is safe with stirrups and inclined members Is safe with stirrups Safe in shear Needs revision of the section Is safe with stirrups and inclined members ANSWER DOWNLOAD EXAMIANS APP
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