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Strength of Materials

Q1:

When a rectangular beam is loaded transversely, the maximum compressive stress is developed on the

A top layer

B bottom layer

C neutral axis

D every cross-section

ANS:B - bottom layer

When load is applied on a beam.

Upper zone = compressive zone.
Lower zone = tensile zone.

Now,

Stress = resisting force per unit area.

So reverse the above phenomena.

Upper zone = tensile stresses.
Lower zone = compressive stresses.



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