The expected responses were:

• (i)        Importance of lighting system in the operation of a motor vehicle
• Provides illumination for driver
• Allows driver call the attention of other road users/vehicles
• Indicates direction of movement                                                                                                                                                   

(ii)        Advantages of sealed beam lamps over the non sealed types

• Accurate location of the filament at fixed point
• Absence of dirt and moisture on reflector
• Put off the lamp before changing the lens

(iii) Possible causes of headlamps failure to glow when switched ON

• Blown fuse
• Burnt lamp/bulb
• Open circuit
• Defective bulb holder
• Dead battery

• Diagram of  an automobile head lamp

• Steps involved in the alignment of headlamps
• Brake light
• Direction  indication light
• Side light
• Parking light
• Reverse light
• Number plate light

                                                                                                                                   
Question 5 required candidates to show understanding of the purpose of the lighting system. It also required candidates to draw and identify parts of an automobile headlamp.
It was reported that while majority of the candidates gave good response to the first task, while they gave poor responses to the other tasks in the question.