Answer Posted / bejoyed

adding to answer#1
i would like to mention that,a circle encircles more area
than any other shape with a given length of material.. in
the same way a cylindrical piping can carry more fluid with
least material of construction...
also the flow of any fluid finds minimum resistance across a
cylindrical piping than any other shaped ones...

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hai friends please send me the previous question ntpc questions both tecnical and apptitude papers for my mail. and also post me the areas in which u have faced difficulties that might help ful to me. so please send the answer to my question. my mail id is sweety4834u@gmail.com

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