Question 2
(a) Explain the following terms in machining:
chamfering;
knurling
(b) State two safety precautions each to be observed when:
chiseling;
grinding.
(c) Sketch a straight knurling tool
Observation
Most of the candidates who attempted this question could not provide the required responses to parts (a) (i) and (ii) of the question. The required responses to these parts are:
Explaining the following terms\
Chamfering: cutting a bevel on the edge of the workpiece.
Knurling: Embossing a pattern on the surface of workpiece.