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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?
917Define what is or define what characterize the thermodynamic state of metal (structure of metal)?
898Is it possible to determine the heat treatment condition in stainless steel (astm a 479 gr xm-19) by checking the microstructure?
923
In welding, arc is too long due to ?
What are carbides?
Which metals do not react with lithium bromide ad why?
what is meant by hardening ability of metals?
Which is stronger, tungsten or titanium?
What is iron ferite? Where is it used?
what should be the exact suction capacity for 3 to 5 mt capacity lead rotary furnace and length of duct line for proper suction for same
What happens when the mercury of a thermometer spills over the gold ring?
Explain super alloys. What makes them useful for land-based turbines?
Define knurling.
What is gold investment casting?
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?
What is the most ductile metal?
What happens to the microstructure during service exposure?
What is the difference between DI pipes, Cast Iron pipes, LA Pipes, SW pipes, SWR Pipes, RCC hume pipe, RCC spun pipe ? What are their IS codes and applications ?
