This question was well attempted by most of the candidates who sat for the examination. The part of the question that proved difficult to them was
part (b). The required responses to part (b) of the question are:
(bi) the furnace shown in the sketch is a Bessemer converter.
(bii) the furnace is used to produce mild steel
(biii) Two constituents of the charge fed into the furnace are molten pig iron and air.
