What is residual stress?
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? Define what is the ratio of dbc to oxalic acid solution in this step?
What are allotropes?
Which metal is the best conductor of heat?
Which type of key is used between shaft and pulley?
What are ceramics?
Define grinding.
what are the causes of scaling in cast iron, after subjecting it to annealing process.
Does the extrusion process for a355 and a356 alloy have any impact on the impact energy?
How to melt the solidified copper accretions in copper scrap melting furnace?
Where is iron ferite used?
Which type of welding is used for welding of duplex and super duplex steel?
What is or what characterize the thermodynamic state of metal (structure of metal)?
When we do cardonitriding or casehardening operation for a plain carbon steel the case depth, hardness & microstructure are not alike why and define what are the basic thing, which makes such a difference.
what is the chemical composition of ceramic and define what is its atomic density?
