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

  • question_answer From design point of view, spherical pressure vessel are preferred over cylindrical pressure vessels because they:

    A) Are cost effective in fabrication

    B) Have uniform higher circumferential stress

    C) Uniform lower circumferential stress

    D) Have a larger volume for the same quantity of material used

    Correct Answer: C

    Solution :

    \[\frac{{{({{\sigma }_{\theta }})}_{sphere}}}{{{({{\sigma }_{\theta }})}_{cylinder}}}=\frac{pd}{4t}\times \frac{2t}{pd}=\frac{1}{2}\]


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