A) - Draw sketch for an estimated S-N diagram for a hot-rolled finish steel bar (AISI - 1060) and define its equations.
b) - How many cycles of life can be expected if the completely reversed stress is 150
MPa?
c) - What is the applied reversed stress for 105
cycle life?
Given the value of = 0.4

An open feedwater heater operates at steady state with liquid entering at inlet 1 with t? = 40°c and pl = 1 .2 mpa. water vapor att2-200°c and p2 = 1.2 mpa enters at inlet 2. saturated liquid water exits with a pressure of pa 1.2 mpa. neglect heat transfer with the surroundings and all kinetic and potential energy effects, determine the mass flow rate of steam at inlet 2 if the mass flow rate of liquid water at inlet 1 is given as 2 kg/s.