Railways NTPC (Technical Ability) Engineering Mechanics and Strength of Materials Question Bank Engineering Mechanics

  • question_answer
    A solid circular shaft is subjected to pure torsion. The ratio of maximum shear stress to maximum normal stress at any point would be

    A) 1 : 1                             

    B) 1 : 2

    C) 2 : 1                             

    D) 2 : 3

    Correct Answer: A

    Solution :

    \[{{\tau }_{\max }}=\frac{16T}{\pi {{d}^{3}}}\] \[{{\sigma }_{\max }}={{\sigma }_{\max }}\,\,for\theta =45{}^\circ \]


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