When using mercury to recover very, fine gold from ore, define what is the best way to separate the gold laden mercury from the ore?
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Define what is carbide?
Will aluminum alloy like 380 or 356 settle? Meaning while in “liquid form” above melting point will the heavier elements like copper, fe, silicon, zinc etc. Settle to the bottom of the liquid/molten aluminum after a period.
exact defination of indurance test
Explain the purpose of riser?
What is the Equivalent for 9.81 kgf= ?
Which material is used to made up of electrodes of resistance welding?
Define what is the difference between stainless steel and alloy steel?
What is the major difference between quenching and annealing?
What is galvanising?
What is the chemical composition of ceramics?
Define what is the strongest metal?
When we do cardonitriding or casehardening operation for a plain carbon steel the case depth, hardness & microstructure are not alike why and what are the basicthing, which makes such a difference.
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