A rod is made from two segments: AB is steel and BC is brass. It is fixed at its ends and subjected to a torque of T = 680 N.m.
Gst = 75 GPa, Gbr = 39 GPa.
If the steel portion has a diameter of 30mm, determine the required diameter of the brass portion so the reactions at the walls will be the same.
If the steel portion has a diameter of 30mm, determine the required diameter of the brass portion so the reactions at the walls will be the same.
1 answer:
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Answer:500,551.02
Explanation:
Given
Initial enthaly of pump \left ( h_1\right )=500KJ/kg
Final enthaly of pump \left ( h_2\right )=550KJ/kg
Final enthaly of pump when efficiency is 100%=
Now pump efficiency is 98%
=
0.98=
therefore initial and final enthalpy of pump for 100 % efficiency
initial=500KJ/kg
Final=551.02KJ/kg