Q2 Write short notes on any two of the following:
a) Optimum Design. b) New Design c) Empirical Design [12 marks]
(iii) Mention two methods used in design in minimizing stressconcentration. [5 marks]
Q4 (i) Find the power transmitted by a 50mm diameter solid shaftrunning at 200rpm if the shear strength of the material is 124MN/m2 using factor of safety of 2.
What will be the power transmitted by an equivalent hollow shaftof the same cross sectional area as the solid shaft above, if theratio of the outside to inside diameter is 3/2. [18 marks]
(ii) Explain the meaning of the answers in (i) above
