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If the tension test bar is found to taper from (D + a) diameter to (D – a) diameter, prove that the error involved in using the mean diameter to calculate Young’s modulus is (10a/D)² per cent.

Question-AnswerCategory: Strength of MaterialsIf the tension test bar is found to taper from (D + a) diameter to (D – a) diameter, prove that the error involved in using the mean diameter to calculate Young’s modulus is (10a/D)² per cent.
Mwate Chito asked 4 months ago

If the tension test bar is found to taper from (D + a) diameter to (D – a) diameter, prove that the error involved in using the mean diameter to calculate Young’s modulus is (10a/D)² per cent.

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