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M: +2.00/-0.66

A mild steel bar, circular in cross-section, tapers from 40 mm diameter to 20 mm diameter over tis length of 800 mm. It is subjected to an axial pull of 20 kN. E = 2 × 105 N/mm2. The increase in the length of the rod will be

[ESE (IES) CE 2017 Technical]
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