A steel shaft is subjected to a twisting moment (Torque) of 10677 N. m and maximum bending moment of 5423 N. m. - Find the required diameter of the shaft to prevent yielding in Tresca criteria. Yield strength σY = 413 MPa Another steel shaft is now subjected to a fluctuating axial load that varies from a minimum of 10000 N in compression to a maximum of 40000 N in tension, and a completely reversed bending moment of 2000 N. m - Find the required diameter of the shaft to prevent failure by fatigue σu = 690 pa (Tensile strength) and σe = 345 pa (endurance imit) and S. F.=1

Amass of m 1.5 kg of steam is contained in a closed rigid container. initially the pressure and temperature of the steam are: p 1.5 mpa and t 240°c (superheated state), respectively. then the temperature drops to t2= 100°c as the result of heat transfer to the surroundings. determine: a) quality of the steam at the end of the process, b) heat transfer with the surroundings. for: p1.5 mpa and t 240°c: enthalpy of superheated vapour is 2900 kj/kg, specific volume of superheated vapour is 0. 1483 m/kg, while for t 100°c: enthalpy of saturated liquid water is 419kj/kg, specific volume of saturated liquid water is 0.001043m/kg, enthalpy of saturated vapour is 2676 kj/kg, specific volume of saturated vapour is 1.672 m/kg and pressure is 0.1 mpa.

What difference(s) did you notice using a pneumatic circuit over hydraulic circuit.explain why the pneumatic piston stumbles when it hits an obstacle.

Burgers vector is generally parallel to the dislocation line. a)-true b)-false