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 a. The thermal stress in the rod is(Mechnical Engg.)
A.	Zero
B.	αΔT
C.	EαΔT
D.	EαΔTL
Answer» E.

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