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

  • question_answer       A thin cylinder contains fluid at a pressure of  \[500\,N/{{m}^{2}},\] the internal diameter of the shell is 0.6 m and the tensile stress in the material is to be limited to \[9000\,N/{{m}^{2}}.\] The shell must have a minimum wall thickness of nearly

    A) 9 mm               

    B) 11 mm         

    C) 17 mm             

    D) 21 mm

    Correct Answer: C

    Solution :

    \[{{\sigma }_{\theta }}=\frac{pd}{2t}\] \[t=\frac{500\times 0.6}{2\times 9000}=16.66=17\,mm\]


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