Figure Q4 shows a test specimen with a circular cross section before conducting a standard tensile test. The following table (Table Q4) presents the results of the tensile test. Answer the following sections regarding the given data and information below: 10 mm dia Gauge Length 50 mm Figure Q4 Tensile Test Specimen c) Determine the yield strength using 1.0% offset method. load (kN) d) Determine the ultimate tensile strength. I e) State the stress and strain at fracture. 0 6.5 12.8 19.1 25.5 31.9 38.3 40 50 46 43 a) Plot the stress-strain curve for the test. b) Explain the different stages of the tensile test results on the stress-strain curve. extension (mm) 0 0.02 0.04 0.06 0.08 0.1 0.48 1.4 4.8 10.1 12.8 Table Q4 Test Data [6 marks] [4 marks] [4 marks] [3 marks] [3 marks] f) Determine the modulus of elasticity (Young's Modulus). g) From the stress-strain data, determine whether this material is considered [2 marks] as brittle or ductile giving a reason for your choice. Q4 Total [25 marks] [3 marks]