Question 1
(a) State one reason why copper is used for making soldering iron.
(b) Sketch a straight soldering iron.
(c) Explain the following terms as applied to pig iron production:
(i) charging;
(ii) smelting.
(d) List four types of tongs used in metalwork.
Most of the candidates who attempted this question did very well but could not make the sketch demanded for in (b).
The required responses to the specified partis as given below.
(b) The sketch of a straight soldering iron
