An R.C.C. beam of 6 m span is 30 cm wide and has a lever arm of 55 cm . If it carries a U.D.L of 12 t per m and allowable shear stress is 15 kg/cm2 , the beam  A. Is safe in shear  B. Is safe with stirrups C. Is safe with stirrups and inclined bars D. Needs revision of section

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Bars

In civil engineering, bars refer to steel reinforcement bars or rebars. These are structural members primarily used for reinforcement purposes in masonry works. A bar is characterized by its cross-sectional area, which is negligible compared to its length. Bars are usually manufactured by steel which is uniform throughout the length, or by meshing multiple steel wires. Other materials of the bar include carbon steel, glass fiber, carbon fiber, and basalt fiber. The reinforcing bars are coated with epoxy resins and other materials to enhance some of their properties including corrosion resistance.