Question

The puddling process used puddling furnace and X. Puddling furnace removed the impurities from molten iron and X pressed iron into bars.

What is X?

• A. Rolling mill
• B. Steam engine
• C. Brick kiln
• D. Iron block

Answer 1

The correct option is A Rolling mill

The puddling process consisted of the puddling furnace and the rolling mill. The puddling furnace removed the impurities from the molten iron and the rolling mill used steam power to roll the purified iron into bars. Thus, X is a rolling mill.