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Weight ratio of roasted ore, coke and li...

Weight ratio of roasted ore, coke and lime stone fed into the blast furnace in the manufacture of cast iron is

A

`8:1:4`

B

`6:4:1`

C

`8:4:1`

D

`8:4:3 `

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The correct Answer is:
C
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AAKASH SERIES-PRINCIPLES OF METALLURGY-OBJECTIVE EXERCISE-1
  1. Which one of the following elements constitutes a major impurity in pi...

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  2. In which of the following percentage of carbon is maximum

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  3. Weight ratio of roasted ore, coke and lime stone fed into the blast fu...

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  4. Carbon is present in pig Iron as

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  5. Commercially important ore of copper is its

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  6. Which is the chief ore of copper ?

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  7. The matte obtained in the callurgy of copper has the approximate Compo...

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  8. The flux used in the smelting of copper pyrites is

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  9. In the metallurgy of copper blister copper is obtained from

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  10. Blister Cu is about :

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  11. Zinc is obtained on large scale by

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  12. in Belgian process for reduction of ZnO to Z reductant is

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  13. The metal that occurs in the native state as well as in the combined f...

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  14. A common metal widely used in the displacement method to obtain other ...

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  15. The metal extracted by leaching with a cyanide is

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  16. The chemical reagent used for leaching of gold and silver ores is

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  17. Name the metal M, which is extracted based on the following equation ...

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  18. Of the following metals that cannot be obtained by electolysis of the ...

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  19. Which of the following process is used in the extractive metallurgy of...

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  20. In the Bayer's process of purification of red hauxite the leaching age...

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