Q.

Lime stone acts as a flux in a cupola. It is generally added in the proportion

A. 30 kg of limestone per tonner of iron
B. One tonne of limestone per tonne of charge
C. 10 kg of limestone per tonne of iron
D. 500 kg of limestone per tonne of coke
E. 100 kg of limestone per tonne of iron
Answer» E. 100 kg of limestone per tonne of iron
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