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  1. A simply supported beam A carries a point load at its mid span. Another identical beam B carries the same load but uniformly distributed over the entire span. The ratio of the maximum deflections of the beams A and B, will be

    2. A.

     2/3
    B.

     3/2
    C.

     5/8
    D.

     8/5

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    Answer : Option D

    Explanation :

    Def.max (A)= PL3/48EI;
    Def.max (B)= 5wL4/384EI; w=P/L,
    = 5PL3/384EI.
    Ratio= (PL3)/48EI * 384EI/(5PL3) = 8/5.

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