A steel rod of sectional area 25 sq. mm connects two paralle

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SSC JE CE 2016 Set 3 (Technical0
Civil Engineering
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Civil Engineering

55

M: +1.00/-0.25

A steel rod of sectional area 25 sq. mm connects two parallel walls 5 m apart. The nuts at the ends were tightened when the rod was heated at 100 ° C. If α_steel = 0.000012/C °, E_steel = 0.2 MN/mm², the tensile stress developed at a temperature of 50 ° C is _____.

[SSC JE CE 2016 Set 3 (Technical0]

A 80 N/mm2

B 100 N/mm2

C 120 N/mm2

D 150 N/mm2