QUESTION 3 1 points Save Answer Fatigue curves for non-ferrous metals do not sho

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QUESTION 3 1 points Save Answer Fatigue curves for non-ferrous metals do not show fatigue limit fatigue threshold endurance limit Ofatigue endurance QUESTION4 1 points Save Answer Examination of the surfaces fatigue failure of metals and metal alloys show brittle fracture surfaces dimpled fracture surfaces surfaces with striations acup cone appearance QUESTION 5 1 points Save Answer The presence of a small amount of copper in aluminium significantly strengthens the alloy by Rearrangement of the crystal structure resulting in fewer dislocations Binding atoms together, thus preventing slip Increasing its Young's Modulus O Forming CuAl2 precipitates which hinder dislocation motion

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option :a is correct

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