A steel rod of length L and diameter D, fixed at both ends, is uniform – McqOptions

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1.	A steel rod of length L and diameter D, fixed at both ends, is uniformly heated to a temperature rise of ΔT. The Young’s modulus is E and the coefficient of linear expansion is α. The thermal stress in the rod is
A.	0
B.	αΔT
C.	E αΔT
D.	E αΔT L
Answer» D. E αΔT L

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