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Ø - Human errors may occur while recording the torque at different intervals, especially in some materials that require large number of rotations, such as Aluminum and copper.

Ø - Impurities in the materials may affect the results.

Ø

T--The large error in the calculated values refers back to the fact that elastic strain is used to for the calculations. Elastic deformation is very sensitive and requires highly accurate equipment that measures angles of twist in microns.

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Q: What are the practical errors in torsion test?
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