Auto Electrical Works Paper 2, WASSCE (SC), 2021

Question 6

 

(a) List four:

  • Components of the auxiliary system;
  • Tools used in the repair of auxiliary system.
(b) Sketch a labelled wiring diagram of a horn circuit showing two horns, a relay, a fuse, a horn button (switch) and the supply source.

 

Observation

   The expected responses were:
           

  •             (i)         Components of the auxiliary system
  • Water temperature gauge
  • Door switch
  • Screen washer pump
  • Oil level gauge
  • Fuel gauge
  • Horn
  • Oil pressure gauge
  • Windscreen wiper
  • Charge indicator lamp

 (ii)       Tools used in the repair of auxiliary system

  • Spanner
  • Screw driver
  • Test lamp
  • Multimeter
  • Pair of pliers
  • Hammer
  • Crimping tool
  • Wiring diagram of a horn circuit

 

siwire: Horn Schematic

 

                                               
Question 6 required candidates to state components and tools with respect to the auxiliary system in the first part and synthesis a horn circuit in the second. As reported by Chief Examiner, majority of the candidates that attempted question 6 responded very well to the first part by stating components and tools as required. On the other, the second part was poorly attempted.