Theory of Structures - Civil Engineering Questions and Answers

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A steel rod of sectional area 250 sq. mm connects two parallel walls 5 m apart. The nuts at the ends were tightened when the rod was heated to 100°C. If steel = 0.000012/C°, Esteel = 0.2 MN/mm², the tensile force developed at a temperature of 50°C, is

80 N/mm²

100 N/mm 2

120 N/mm²

150 N/mm²

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