A Beam is Said to be of Uniform Strength, if

Answer: C.  Bending stress is same throughout the beam

A beam is said to be of uniform strength, if bending stress is same throughout the beam.

Solution

In a beam of uniform strength bending stress developed due to external load at any section of the beam is same throughout the beam 

• A beam of uniform strength can be make by either changing its depth or changing its width along the length of the beam
• Beam of uniform strength is the most economical beam in terms of the saving the material
• At the time of failure, maximum stress at any section in the beam is same as the permissible stress of the material of the beam

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