Ordinary level 2026 North West mock mechanical technology 1

Here is the data extracted from the final set of images, covering mechanical technology, basic electricity, and workshop safety.

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SECTION A: MECHANICAL TECHNOLOGY

Question 1: Petrol Injection System (Figure 1)

a) What type of petrol injection system is shown above? (1 mark)

b) Fill the table below: (3.75 marks)

Ref.	Name of part (0.25 mark×5)	Function (0.25 mark×5)
4
6
9
10
15

c) Give two parameters required by the ECU to determine the quantity of fuel to be injected. ($1\text{ mark} \times 2 = 2\text{ marks}$)

d) What is the effect on engine performance if part (11) fails? (1.25 mark)

e) Part (2) is the pump. Give any two signs of a malfunctioning fuel pump as the engine runs. ($1\text{ mark} \times 2 = 2\text{ marks}$)

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Question 2: Gearbox (Figure 2)

a) What type of manual gearbox is shown in figure 2 above? (1 mark)

b) State three (03) requirements of an automobile manual gearbox. ($1\text{ mark} \times 3 = 3\text{ marks}$)

c) Give the names of parts 1, 2, 3 and 4 of figure 2 above. (2 marks)

N°	Name (0.5mark×2)	N°	Name (0.5mark×2)
1		3
2		4

d) What is the major problem with this type of gearbox? (1 mark)

e) State the function of parts 1, 2 and 3. ($1\text{ mark} \times 3 = 3\text{ marks}$)

• Part 1: __________________________________________________

• Part 2: __________________________________________________

• Part 3: __________________________________________________

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Question 3: Differential Unit (Figure 3)

(Figure 3 shows a cross-section of a differential with numbered parts 1 through 6 and an indicated Axle)

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Multiple Choice Questions (Automotive Technology)

1. The need of the gearbox is to vary the

• A. torque of the vehicle

• B. speed of the vehicle

• C. power of the vehicle

• D. acceleration of the vehicle

5. If a transmission can be shifted into two gears at the same time, which of the following is the most likely cause?

• A. Defective input bearing

• B. Faulty interlock

• C. Worn speed gears

• D. Worn countershaft bearings

6. The purpose of a half shaft is to allow the torque from the final drive to be transmitted to the

• A. differential

• B. wheel hubs

• C. road wheels

• D. road

11. The purpose of crankcase venting is to

• A. remove harmful particles from the engine

• B. provide proper lubrication to the engine

• C. provide air for combustion to the engine

• D. provide a means of evaporating oil

12. Identify the type of cylinder head shown in the figure below.

(Diagram shows a V-configuration with two overhead camshafts)

• A. two valve cylinder head

• B. dual overhead camshaft

• C. straight inclined valve cylinder head

• D. double valve cylinder head

16. The volume of the cylinder above the piston head when the piston is at BDC is

• A. swept volume

• B. clearance volume

• C. engine volume

• D. total volume