What is a silver in deming drill bit?

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How does iron and steel exhibit allotropy?

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Why is chromium molybdenum steels used to build pressure vessels? Define what is special about the properties of chromium molybdenum steels that make them ideal for pressure vessels?

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Explain super alloys?

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What is a silver and deming drill bit?

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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 ?

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We make aluminum moulds by press casting, can you suggest any thing so that the moulds should shine after casting?

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What is the use of damper?

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sir please send me previous question papers on metallurgy at vishal.nitrr07@gmail.com .....thank you

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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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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?

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Define what is meant by hardening ability of metals?

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