A composite bar made of copper and steel is heated to 120°C from room – McqOptions

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1.	A composite bar made of copper and steel is heated to 120°C from room temperature. If αc > αs, the stress induced in copper bar is:
A.	Shear stress
B.	Compressive stress
C.	No stress
D.	Tensile stress
Answer» C. No stress

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