SSC JE Civil Engineering 2017 Set 1 Solved Paper

Question : 140 of 200

Marks: +1, -0

Two beam of equal cross-sectional area are subject to equal bending moment. If one beam has square cross-section and the order has circular section, then .......... .

both beams will be equally strong
circular section beam will be stronger
square section beam will be stronger
the strength of the beam will depend on the nature of aiding

Validate

Solution:

σ=M/Z

Section modulus (Z) of the cross-sectional shape is a direct measure of the strength of the beam. A beam that has a larger section modulus than another will be stronger and capable of supporting greater loads.

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