Railways Technical Ability Engineering Mechanics and Strength of Materials Question Bank Strength of Materials

  • question_answer When a close-coiled helical spring is subjected to a couple about its axis, the stress induced in  the material of the spring is:                   

    A) Bending stress only                    

    B) Direct shear stress only                 

    C) A combination of torsional shear stress and bending stress

    D) A combination of bending stress and direct shear stress

    Correct Answer: A


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