Choose the correct option from below a)-dislocation line moves perpendicuiar to appled stre b)- presence of an extra half plane of atoms in characteristic features of screw c)- number of vacancies in a metalic yetem decreaces with nresing men d)- in formation of a solid s lution betweens two metals the lure shn change.

The drive force for diffusion is 7 fick's first law can be used to solve the non-steady state diffusion. a)-true b)-false

Aturning operation is performed with following conditions: rake angle of 12°, a feed of 0.35 mm/rev, and a depth of cut of 1.1 mm. the work piece is aluminum alloy 6061 with t6 heat treatment (a16061-t6). the resultant chip thickness was measured to be 1.0 mm. estimate the cutting force, fc. use shear stress of 207 mpa and coefficient of friction on the tool face of 0.6.

How to increase the thermal officiency of an ideal simple rankino cycle? among these methods, which one is the best and why?