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Strength of Materials

Q1:

A steel bar of 5 mm is heated from 15° C to 40° C and it is free to expand. The bar Will induce

A no stress

B shear stress

C tensile stress

D compressive stress

ANS:A - no stress

When the steel is heated up to elevated temperatures increases in Ductility and Malleability properties.

So, here steel is heated up to 15 to 40-degree centigrade then Ductility is increased so the steel is no stress.



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