Steady-state creep rate data are given here for some alloy taken at 200°C (473 K): (h-1) (MPa) 2.3 × 10-3 54 2.5 × 10-2 71 If it is known that the activation energy for creep is 160000 J/mol, compute the steady-state creep rate at a temperature of 240°C (513 K) and a stress level of 45 MPa.

During a steady flow process, the change of energy with respect to time is zero. a)- true b)- false

Which of the following controllers anticipates the future from the slope of errors over time? a)-proportional b)-on/off c)-integral d)-derivative.

Apiston-cylinder device contains 0.1 m3 of liquid water and 0.9 m3 of water vapor in equilibrium at 800 kpa. heat is transferred at constant pressure until the temperature of water reaches 350 °c. determine (a) the quality of water at the initial state (b) the work associated with this process, (c) the heat associated with this process.