Q5-B) A compound shaft consisting of a steel segment and an aluminum segment is - 1 acted upon by two torques as shown in Fig. Q5-B. Determine the maximum permissible value of T subject to the following conditions: Tst 83 MPa, Tal = 55 MPa, and the angle of rotation of the free end is limited to 6°. For steel, G = 83 GPa and for aluminum, G = 28 GPa. Steel 50 mm Ø Aluminum 2T 40 mm Ø 600 mm 900 mm