10. A 3 mm diameter aluminum test specimen was subjected to an axial tensile load and the following date was obtained. Gauge length = 12 mm Final gauge length =13.25

mm Load at proportional limit = 16500 N Elongation at proportional limit = 0.018 mm Load at yield point = 35,000 N Maximum load =65,000 N Load at rupture = 38,000 N Find (i) Stress and Strain at proportional limit (ii) Modulus of Elasticity (iii) Yield Strength (iv) Ultimate Strength (v) Rupture Strength (vi) Percentage Elongation (vii) Percentage Reduction in area Diameter at rupture = 0.945 mm

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