cameroon gce intermediate level 2026 material technology and workshop processes 2

SECTION A: MATERIALS TECHNOLOGY AND WORKSHOP PROCESSES

Instructions: Answer any three (03) questions from this section.

1. COMPOSITE MATERIALS

• a) * i. What is a composite material? (1 mark)

  • ii. What is the difference between a composite material and an alloy? (2 marks)

• b) State FOUR (04) properties required from composite materials. (1 mark)

• c) * i. Give TWO (02) functions of a matrix in a composite material. (2 marks)

  • ii. State THREE (03) examples of matrices. (1.5 marks)

• d) Name THREE (03) parts of a car that are made from composite materials. (1.5 marks)

• e) Give TWO (02) methods of repairing parts made from composite materials in a vehicle. (1 mark)

2. CORROSION AND METAL COATING

Figure 1 below shows a metal coating process.

📷 Note: Refer to Figure 1 in image_5fb682.jpg to view the complete diagram featuring the iron sheet line, acid bath, washing bath, drying chamber, flux, molten zinc bath, rollers, and annealing chamber.

• a) * i. Identify the metal coating process in Figure 1. (1 mark)

  • ii. Give the names of the parts marked 1 and 2. (1 mark)

  • iii. Briefly describe the process in Figure 1. (2 marks)

• b) * i. What is corrosion? (1 mark)

  • ii. Give THREE (03) causes of corrosion. (1.5 marks)

  • iii. Give THREE (03) effects of corrosion. (1.5 marks)

• c) What is the difference between dry corrosion and wet corrosion? (1 mark)

• d) What is the difference between galvanizing and tinning? (1 mark)

3. METAL FORMING PROCESSES

• a) State FOUR (04) metal forming processes. (2 marks)

• b) Write down the various forming processes used to obtain the following parts: (2 marks)

  • i. Crankshaft

  • ii. Gear box housing

  • iii. Connecting rod

  • iv. Electrical wires

• c) Give TWO (02) reasons why most mobile engine components are not moulded. (1 mark)

• d) State FOUR (04) advantages of the use of aluminium to manufacture vehicle parts. (2 marks)

• e) Why can’t aluminium be welded with steel? (1 mark)

• f) With the aid of a sketch, define extrusion. (2 marks)

Tips for WordPress Optimization:

• Image Placement: Crop Figure 1 from image_5fb682.jpg (the industrial hot-dip coating schematic) and insert it directly under the Question 2 heading.

• SEO Tags: Use tags like Materials Technology, Workshop Processes, Composite Materials, Corrosion and Metal Coating, and Metal Forming.