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Mr. Dubey • 100.64K Points
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Q. Why is sand bed prepared for melting of metal in Cupola furnace?

  • (A) it provides a refractory bottom
  • (B) it soaks the moisture from the metal
  • (C) it conducts the heat faster and uniformly
  • (D) none of the mentioned
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Explanation by: Mr. Dubey
a sand bed needs to be prepared because it provides a necessary refractory bottom for molten metal and coke.

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