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Question 4
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(4) (a) (i) What is a self –secured joint?
(ii) List four examples of self-secured joints.
(b) Explain the term tinning the bit.
(c) State one defect in a butt welded joint.
(d) List three tools and equipment required for forming a shallow bowl in
beaten metalwork. |
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Most of the candidates who attempted this question were able to provide the required responses to parts (a), (c) and (d) of the question. However part (b) of the question was extremely difficult for them. The required response to part (b) is :
(b) heat the soldering bit to the correct temperature, clean the soldering bit and then apply flux. |
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