SSC JE Civil Engineering 2017 Set 4 Solved Paper

Question : 156 of 200

Marks: +1, -0

A cantilever beam is shown in the figure. Find the magnitude and direction of moment to be applied at free end for zero vertical deflection.

Solution:

Δ={P\l}^2/{3EI}={M\l}/{2EI}

⇒

M={2×9×2}/3=12\kNm ( +)

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