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structural unsymmetrical A steel beam has has an I cross section. The overall depth of the beam is 200 mm. The flange stresses at

structural unsymmetrical A steel beam has has an I cross section. The overall depth of the beam is 200 mm. The flange stresses at the top and bottom are 120 N/mm and 80 N/mm respectively. The depth of the neutral axis from the top of the beam will be (A) 120 mm (B) 100 mm (C) 80 mm (D) 60 mm

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