The ductility of a material __________ with the increase in percentage reduction in area of a specimen under tensile test.
A. Increases
B. Decreases
C. Remains same
D. None of these
Answer: Option A
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D. None of these
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The percentage elongation or percentage reduction in area before rupture of a test specimen is the measure of ductility. Normally if percentage elongation exceeds 15% the material is ductile and if it is less than 5% the material is brittle.
Lead, copper, aluminum, mild steel are typical ductile materials.