Civil Engineering - Building Materials - Discussion

Discussion Forum : Building Materials - Section 4 (Q.No. 5)
5.
Pig iron is manufactured from the ores by
dressing
calcination and roasting
smelting
all the above.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
4 comments Page 1 of 1.

Pari said:   3 years ago
Extraction of metal from its ore by a process involving heating and melting is smelting.

Praveen kr said:   3 years ago
What is smelting?

Adolf said:   7 years ago
Dressing is the removal of earth impurities from ore after it digged !

AAmir said:   8 years ago
What does mean dressing in here?

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