Metal Works 2, WASSCE (PC 2ND), 2020

Question 5

 

 

   (a) Name two parts of a lathe machine that are used to hold the cutting tool.

  (b) Sketch a setup of turning centre operation on the lathe.

  (c) State in three steps, the procedures for lacquering an article.

 (d)  Why is the air pumped into the blast furnace preheated?

 

Observation

 

 

Most of the candidates who attempted this question could not provide the required responses to parts (b) and (c) of the question. The required responses to these parts are:

 

(b)The Sketch of the Set up for Turning between Centre Operation on Lathe Machine

 

 

 

The Procedure for Lacquering an Article

 

  • Cleaning the article
  • Warming the article for degreasing
  • Applying the lacquer and allowing it to cool