Describe and explain, with the aid of diagrams, the phenomenon of die swell and how it may be reduced or compensated for in polymer extrusion techniques.
19. Describe and explain, with the aid of diagrams, the phenomenon of die swell and how it may be reduced or compensated for in polymer extrusion techniques.
20. Describe (with the aid of any diagrams as appropriate) two types of defect that may be encountered in a welded metal joint
21. With reference to optimising the use of weld metal, outline (with the aid of any diagrams as appropriate) two considerations given to welded joint design.
22. Outline the use of liquid (dye/fluorescent) penetrants as a non-destructive testing method.
23. Outline (with the aid of any diagrams if needed) four limitations of adhesive bonding.
24. Threaded components (i.e. screws, nuts, bolts) and rivets are commonly used
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