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UPSC Civil Service Exam Questions - Engineering

Q1:

A beam of uniform strength refers which one of the following ?

A A beam in which extreme fibre stresses are same at all cross-sections along the length of the beam.

B A beam in which the moment of inertia about the axis of bending is constant at all cross-sections of the beam.

C A beam in which the distribution of bending stress across the depth of cross-section is uniform of all cross-sections of the beam.

D A beam in which the bending stress is uniform at the maximum bending moment cross-section.

ANS:A - A beam in which extreme fibre stresses are same at all cross-sections along the length of the beam.

C is absolutely correct. I too agree.