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How is cast iron different from pig iron...

How is cast iron different from pig iron?

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`rarr` cast iron is formed by melting pig iron with scrap iron and coke in presence of blast of hot air. It contains carbon content 3% (approximately).It is extremely hard and brittle.
`rarr`pig iron is formed from blast furnace.It contains carbon 4% (approximately).It contains small quantities of impurities S,P,Si,Mu ect..
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VIKRAM PUBLICATION ( ANDHRA PUBLICATION)-GENERAL PRINCIPLES OF MMETALLURGY-VERY SHORT ANSWER QUESTIONS
  1. Explain "Poling".

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  2. Decribe a method for the refining of nickel.

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  3. How is cast iron different from pig iron?

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  4. What is the difference between a mineral and an ore?

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  5. Why copper matte is put in silica lined converter?

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  6. What is the role of cryolite in the metallurgy of aluminium?

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  7. How is leaching carried out in the case of low grade copper ores?

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  8. Why is zinc not extracted from zinc oxide through reduction using CO?

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  9. Give the composition of the following alloys. (a) Brass (b)Bronze ...

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  10. Explain the terms gangue and slag.

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  11. How is Ag or Au obtained by leaching from the respective ores?

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  12. What are the limitations of Ellingham diagram?

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  13. Write any two ores with formulae of the following metals: (a) Alumin...

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  14. What is matte? Give its Composition.

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  15. What is blister copper? Why is it so called?

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  16. Explain magnetic separation of impurities from an ore.

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  17. What is flux ? Give an example.

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  18. Give two uses each of the following metals: (a) Zinc (b) copper...

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  19. Between C and CO, Which is a better reducing agent for ZnO?

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  20. Give the uses of a) cast iron b) wrought iron c) Nickel steel ...

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