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The fuel mostly used in blast furnace for extracting pig iron from iron ores is

A. Hard coke

B. Soft coke

C. Pulverised coal

D. Bituminous coal

Correct Answer : A.


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  17. The expansion ratio (r) is the ratio of (where v1 = Volume at the beginning of expansion, and v2 = Volume…
  18. A cycle consisting of one constant pressure, one constant volume and two isentropic processes is known…
  19. A beam which is fixed at one end and free at the other is called
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  25. The unit of energy is S. I. units is
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