It is required for the existing heat exchanger to double their original capacity in the near future. estimate the invesment cos requied to increase the heat evchanger capacity. hint use average value of m).

True or false (explain) (110)[111] is a slip system in bcc metals . the {111} family in fcc contains 8 planes. resolved shear stress (rss) in single crystals is just related to the applied stress. critical resolved shear stress (crss) in single crystal metals is direct proportional to the number of defects in the structure

Aquick transition of the operating speed of a shaft from its critical speed will whirl amplitude. (a) increase (b) limit (c) not affect (d) zero

What is the heat treatment of metals? what is the benefit of it? why and how it's useful? answer in details, do not write by hand.