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  1. 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 αsteel = 0.000012/C°, Esteel = 0.2 MN/mm2, the tensile force developed at a temperature of 50°C, is

    2. A.

    80 N/mm2
    B.

    100 N/mm2
    C.

    120 N/mm2
    D.

    150 N/mm2

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    Answer : Option C

    Explanation :

    No answer description available for this question.

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