1.

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

Answer» Right choice is (a) It provides a refractory bottom

Easy explanation: A sand bed needs to be prepared because it provides a necessary refractory bottom for molten metal and coke.


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