Auto Electrical Works Paper 2, WASSCE (SC), 2022

            Question 6

  1. With respect to motor vehicle b., list three obligatory lights two non-obligatory lights.
  1. Fig. 4 shows a wiring diagram of a motor vehicle.


Table 4 contains motor vehicle electrical systems. Complete it by listing four parts of each system
after identifying them in Fig.4.
Table 4


Charging system

Ignition system

Starting system

Lighting system

Auxiliary system

 

 

 

 

 

 

 

The expected responses were:

  •  (i)     Obligatory lights with respect to motor vehicle
  • Head light
  • Parking light
  • Brake light
  • Direction indication light
  • Reverse light

 

 

(ii)        Non-obligatory lights with respect to motor vehicle

  • Number plate light
  • Boot light                                                                                                     
  •  Table 1

Charging system

Ignition system

Starting system

Lighting system

Auxiliary system

Alternator

Coil

Starting switch

Head lights

Tank unit

Voltage regulator

Breaker points

Starting motor

Dash lights

Dash unit

Battery

Condenser

Battery

Tail and stop light

Horn

Ammeter

Distribution caps

 

Ignition lock light

Horn  button

 

Spark plugs

 

Dome light

 

 

Ignition switch

 

Stop light switch

 

 

 

 

Lighting switch

 

 

 

 

Dimmer switch

 

                                               
Question 6 required candidates to state the different obligatory and non-obligatory lights found in a motor vehicle. It also require candidates to identify and classify  from the wiring diagram the label parts into different systems. As reported by Chief Examiner, majority of the candidates that attempted question 6 responded very well to the first part. On the other, the second part was poorly attempted.