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Railways NTPC (Technical Ability) Metal Forming, Casting and Cutting Question Bank Metal Forming

  • question_answer
    A house-top water tank is made of fiat plates and is full to the brim. Its height its twice that of any side. The ratio of force on the bottom of the tank to that on any side will be:

    A) 4                                 

    B) 2

    C) 1                                 

    D) ½

    Correct Answer: C

    Solution :

    \[{{F}_{bottom}}=\rho g\,\,LBh\] \[{{F}_{side}}=\frac{1}{2}Ag\,L{{h}^{2}}\] \[\frac{{{F}_{bottom}}}{{{F}_{side}}}=\frac{2B}{h}=\frac{2B}{2B}=1\]


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