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Question

A simply supported beam of span length 6m and 75mm diameter carries a uniformly distributed load of 1.5kN/m.

What is the maximum value of bending moment?

A
9kNm
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B
13.5kNm
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C
6.75kNm
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D
125kNm
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Solution

The correct option is C 6.75kNm
RA+RB=9kN
Taking moment about B, we get
RA×6=1.5×6×3
RA=RB=4.5kN
Mmax=4.5x1.5x22[at x=3m]
=6.75kNm




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