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  1. A steel bar of 2 m length is fixed at both ends at 20°C. The coefficient of thermal expansion is 11 x 10-6/°C and the modulus of the elasticity is 2 x 106 kg/cm2. If the temperature is changed to 18°C, then the bar will be experience a stress of

    2. A.
    22 kg/cm2 (tensile)
    B.
    22 kg/cm2 (compressive)
    C.
    44 kg/cm2 (compressive)
    D.
    44 kg/cm2 (tensile)

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    Answer : Option C

    Explanation :

    No answer description available for this question. Let us discuss.

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