Civil Engineering - UPSC Civil Service Exam Questions - Discussion


If a composite bar of steel and copper is heated, then the copper bar will be subjected to

[A]. compression
[B]. shear
[C]. tension
[D]. torsion

Answer: Option A


No answer description available for this question.

Umesh H A said: (Sep 15, 2018)  
Copper having more coefficient of thermal expansion than steel. It tries to deform faster then steel. But it's expansion is restricted by a steel. Hence copper undergoes compression, instead of tension.

Karthik said: (Aug 3, 2020)  
Well said @Umesh.

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