Question 1 a) A cylindrical specimen of an unknown metal having a diameter of 12.8mm and a gauge legth of 50.8mm is pulled in tension. Using the data given in Table 1, i) Construct the engineering stress versus engineering strain [10 Marks) ii) Compute the modulus of elasticity (5 Marks) iii) Identify the tensile strength [5 Marks) Table 1: Load and Length for the unknown metal Load (N) Length (mm) 0 30.8 7330 50.851 15100 50.902 23100 50.952 30400 51.003 34400 51.054 38400 51.308 41300 51.816 44800 52.832 46200 $3.848 47300 54.864 47500 35.88 46100 59.896 44800 57.658 42600 38420 36400 59.182