Question 4
(a) State two suitable surface finishing processes for each of the following:
(i) aluminium dishes;
(ii) bicycle frames;
- mild steel litter bin.
(b) Sketch a doming mallet.
(c) State one uses each of the following tools:
(i) Engineer’s square;
(ii) half-round scraper;
(iii) cross-cut chisel.
Observation
Most of the candidates who attempted this question could not provide the required responses to part (a). The required responses to this part are given below:
(i) Aluminium dishes
- Anodizing;
- Buffing;
- Polishing.
(ii) Bicycle frames
(iii) Mild steel litter bins
- Galvanishing;
- Painting (spraying, brushing, dipping);
- Electroplating;
- Enameling.