The strains determined by the use of the rosette attached as shown during the test of a machine element are £a = 600 um/m, £b = 450 um/m, &c = -75 pm/m. (Use E=200 GPa, v=0.3)
Determine:
(a) Draw Mohr's circle for plane strain 3D
(b) The plane strain (Ex, Ey, Yxy).
(c) principal strain (E1, E2, E3, Ymax)

Explain the difference laminar and turbulent flow. explain it with the shear stress and the velocity profiles.

When at a point two solid phase changes to one solid phase on cooling then it is known as a) eutectoid point b) eutectic point c) peritectic point d) peritectoid point

Amass of 1.5 kg of air at 120 kpa and 24°c is contained in a gas-tight, frictionless piston-cylinder device. the air is now compressed to a final pressure of 720 kpa. during the process, heat is transferred from the air such that the temperature inside the cylinder remains constant. calculate the boundary work input during this process.