The yield strength for an alloy that has an average grain diameter of 5.4 × 10-2 mm is 123 MPa. At a grain diameter of 8.9 × 10-3 mm, the yield strength increases to 232 MPa. At what grain diameter, in mm, will the yield strength be 247 MPa?

Heat is added to a piston-cylinder device filled with 2 kg of air to raise its temperature 400 c from an initial temperature of t1 27 cand pressure of pi 1 mpa. the process is isobaric process. find a)-the final pressure p2 b)-the heat transfer to the air.

Afour cylinder four-stroke in-line engine has a stroke of 160mm, connecting rod length of 150mm, a reciprocating mass of 3kg and its firing order is 1-3-4-2. the spacing between cylinders is 100mm. i. show that the engine is in balance with regard to the primary inertia forces and primary 3. a and secondary inertia couples. li determine the out of balance secondary inertia force ii. propose ways of balancing this out of balance force and discuss the challenges that will arise

Draw the engineering stress-strain curve for (a) bcc; (b) fcc metals and mark important points.