cameroon gce intermediate level 2026 mechanical technology 2
cameroon gce intermediate level 2026 mechanical technology 2
Here is the text from the sixth page, formatted and organized into Markdown tables and clear sections for your WordPress revision post.
SECTION A: MECHANICAL TECHNOLOGY
Instructions: Answer any THREE questions from this section.
1. FUEL SUPPLY SYSTEM
Figure 1 represents a petrol injection system.
đź“· Note: Refer to Figure 1 in image_5f3e29.jpg to view the detailed electronic fuel injection schematic, including the fuel tank, lines, intake manifold, injector location, throttle valve, and electronic control system layout (labeled parts 1 through 15).
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a) Justify the reason why this fuel system in Figure 1 is called petrol injection. (1.5 mark)
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b) Name and state the functions of the following parts 3, 5, 7, and 11. (2 marks total – 0.5 mark x 4)
(Note: The question text mentions parts 2, 5, 7, and 11, while the table references 3, 5, 7, and 11).
| Ref | Name of parts | Function |
| 3 | ||
| 5 | ||
| 7 | ||
| 11 |
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c) Copy and complete the table below in your answer booklet by explaining the operating principles of a petrol injection fuel system according to the various conditions. (3 marks total – 1 mark x 3)
| No | Condition | Operation |
| 1 | Measure of air | |
| 2 | Management of information | |
| 3 | Supply of fuel |
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d) The sensing device used to measure the amount of air entering the manifold is not represented. Propose two types of air sensor that can be used in this fuel system. (1.5 marks total – 0.75 mark x 2)
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e) State one possible consequence if the throttle valve is clogged with dirt particles. (1 mark)
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f) Outline FOUR (4) fuel system components that if faulty will influence low engine power output. (1 mark total – 0.25 mark x 4)
Tips for WordPress Optimization:
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Image Delivery: Crop the complex petrol injection schematic (Figure 1) from image_5f3e29.jpg and insert it immediately below the problem introduction.
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Discrepancy Note: You may want to add a small note for your students regarding sub-question (b), clarifying whether they should follow the question text (which asks for part 2) or the table layout (which asks for part 3).
