A fixed beam of uniform cross-section carries a point load $ P $ at the mid-span. If the moment of inertia of the middle half portion is reduced to half its previous value, then the fixed end moments will

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Step 1: Understanding fixed end moment changes. - The fixed end moments ($ FEM $) depend on stiffness, which is proportional to moment of inertia ($ I $).  Step 2: Effect of reducing $ I $. - Since $ FEM = \frac{P L}{8} \cdot \frac{I}{L} $, reducing $ I $ to half means the FEM will decrease. Thus, the correct answer is (B) Decrease.

Answer

<div>Increase <br></div>

Answer

<div>Decrease <br></div>

Answer

Remain constant

Answer

Change direction

A fixed beam of uniform cross-section carries a point load \( P \) at the mid-span. If the moment of inertia of the middle half portion is reduced to half its previous value, then the fixed end moments will

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The Correct Option is B

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