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.