An increase in load at the free end of a cantilever is likely to cause failure-
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A.
At the free end
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B.
Anywhere in the beam
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C.
At the mid of its length
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D.
At the fixed support end
Correct Answer:
D. At the fixed support end
Explanation:
In a cantilever beam, which is supported at only one end and free at the other, the bending moment increases as you move from the free end toward the fixed support. When a load is applied at the free end, the maximum stress and bending moment occur at the point of attachment. Consequently, the beam is most vulnerable to structural failure at the fixed support end.
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