Explain heat treatment of brass?

521

How to calculate heat affected zone in weld?

557

Discuss advantage of different types of screw.

566

What is or what characterize the thermodynamic state of metal (structure of metal)?

526

How much gold concentration should be in the organic phase (dbc) before reduction by oxalic acid solution? Is it effective on purity of gold in reduction step? Whatis the ratio of dbc to oxalic acid solution in this step?

587

What is M33×2

564

What is the most ductile metal?

628

What is the use of core prints?

619

What is the usgae of angle plate ?

623

What is Redlich Kwong equation?

600

Define what is the melting point of e70 steel, 304,308,316 stainless steels? In addition, define what is the hottest part of the flame in a fire?

668

What is the Difference of ultimate tensile stress of mild steel to ultimate compressive stress ?

563

What is duplex and super duplex steel?

539

What is the difference between plaster used in gold investment casting and ceramic used in the process of investment casting of automobile engine parts and turbineblades etc. When both are used in the lost-wax method?

526

What is the critical speed of shaft?

571