WAEC Syllabus for Auto Electrical Work

Filed in West African Examinations Council by on February 6, 2016 0 Comments

Welcome to official WAEC Syllabus for Auto Electrical Work

 

  1. PREAMBLE

This examination syllabus has been evolved from the Senior Secondary School Trade Curriculum. The examination syllabus does not replace the curriculum.

The syllabus has been arranged to subsume six themes: battery, starting, ignition, charging, lighting and auxiliary systems.

  1. OBJECTIVE

The objective of the syllabus is to test candidates’ knowledge, skills and attitude in the field of Auto Electrical Works. Specifically, candidates are to:

  • understand the concepts in auto electrical works;
  • use tools and equipment to carry out maintenance and repair on motor vehicles;
  • understand the safety practices and observe them in the work environment.

 

  1. EXAMINATION SCHEME

There will be three papers, Papers 1, 2 and 3, all of which are to be taken. Papers 1 and 2 shall be a composite paper to be taken at one sitting.

PAPER 1:      will consist of forty multiple-choice objective questions all of which are to be answered in 45 minutes for 40 marks.

PAPER 2:      will consist of six short-structured questions. Candidates will be required  to answer any four in 1 hour for 60 marks.

PAPER 3:      will be a practical test of 2 hours duration. It will consist of three

skill-based questions out of which candidates will answer two for

90 marks.

A list of materials for the test shall be made available to schools

not less than two weeks before the paper is taken for materials

procurement and relevant preparations.

 

 

Alternative to Practical Test:

Alternatively, in the event that materials for the actual practical test cannot be acquired, the Council may consider testing theoretically, candidates’ level of acquisition of the practical skills prescribed in the syllabus. For this alternative test, there will be two compulsory essay questions to be answered in 2 hours for 100 marks.

Industrial Attachment

This should be done by the candidates during the long vacation between their SS II and SS III course. It will be supervised and assessed by their subject teachers. It will carry 10 marks.

  1. DETAILED SYLLABUS

 

 

TOPIC

 

 

NOTES

 

1. BATTERY

 

1.1  Concept of   battery

 

 

1.2  Uses of battery

 

 

1.3  Types, Constructional details and ratings

 

1.4  Charging

 

 

 

 

 

 

1.5 Testing and Maintenance

 

 

 

 

 

 

 

2. STARTING SYSTEM

 

2.1 Purpose and components of starting system

 

 

2.2 Circuit diagram

 

 

 

 

2.3 Types of starter motor

 

 

2.4 Repair of starter motors

 

 

 

 

 

 

 

 

3. IGNITION SYSTEM

 

3.1 Purpose and components of ignition system

 

 

 

 

3.2 Circuit diagram

 

 

 

3.3 Construction and operation of ignition coil

 

 

 

3.4 Types of Ignition System

 

 

3.5 Timing

 

 

3.6 Faults and repairs

 

 

 

 

 

4. CHARGING SYSTEM

 

 

 

 

 

4.1 Purpose and components of charging system

 

 

4.2 Alternator

 

 

 

4.3 Circuit diagram

 

 

 

 

 

4.4 Faults and repairs

 

 

 

 

 

 

 

 

 

5. LIGHTING SYSTEM

 

5.1 Purpose and classification of lighting in a motor

vehicle

 

5.2 Head lamps

 

 

 

5.3 Circuit diagram

 

 

5.4 Maintenance and repairs

 

 

 

 

 

6. AUXILIARY SYSTEM

 

6.1 Concept and components of auxiliary system

 

 

 

6.2 Constructional details and operation of

auxiliary system component

 

 

 

6.3 Maintenance and repairs of auxiliary

Components

 

 

 

Definition, distinction between motor vehicle battery and other batteries

 

Treatment should include vehicle battery assembly and as power source in soldering

 

Lead-acid and Nickel-alkaline types

 

Safety rules

Electrolyte preparation

Battery cleaning and connection

Charging mode

State of charge

Treatment should include electrolyte testing

 

Specific gravity test of electrolyte

Cell voltage and polarity tests

Tools and equipment

Treatment should include electrolyte topping up, hydrometer reading and interpretation, over-charging symptoms and idle-battery safe-keeping hint

 

 

 

Treatment should include battery, flywheel, starter

motor, switch and solenoid

 

Drawing and reading of circuit diagram

Treatment should include the location of the

components and their sequential arrangement in a

vehicle.

 

Axial and Inertia.

Treatment should include pinion engagements

 

Dismantling and assembling

Bushing and brush replacement

Commutator soldering/repair

Trouble shooting and rectification

 

Treatment should include armature servicing,

diagnosis and repairs/restoration

 

 

 

 

Ignition system assembly

Treatment should include circuit cables, ignition

switch, battery, coil, distributor, capacitor, high

tension leads and sparking plugs

 

Drawing and reading of circuit diagram

Treatment should include line diagram and

conventional symbols

 

Circuit diagram

Treatment should include the internal construction

of the coil

 

Conventional contact breaker and electronic

ignition systems

 

Concept and timing faults such as retarded ignition and over-advanced ignition.

 

Hard starting

Jerking

Back firing etc.

Emphasize the use of multimeter, scanner, test

lamps etc.

 

 

 

Charging system assembly as a sub-system in a

motor vehicle

Treatment should include switch, battery, cables,

alternators, voltage regulators.

 

Constructional details

Conversion of a.c. to d.c.(rectification)

Function of each part of an alternator

 

Drawing and reading of circuit diagram

Treatment should include graphical and pictorial

representation, need for diagrammatic

representation and how to remove and fix the

charging system units

 

Brush and Bearing replacement

Diode testing, repair and replacement

Treatment should include bearing seizure, charging

failure etc.

 

 

 

 

Obligatory and non-obligatory lights

 

 

Types

Features

Setting of head lamps

 

Classification, drawing and reading of circuit

diagram

 

Trouble shooting

Treatment should include tools, equipment and

procedures for repairing faults such as broken

headlamp lens, bulb failure, non-aligned

headlamps, open and short circuits etc.

 

 

 

Definition, uses and units

Treatment should include needs for auxiliary

system

 

Treatment should include water temperature gauge,

oil pressure gauge, fuel gauge, horn relay, wiper

switch, screen watcher pump, indicator and door

switch

 

Troubleshooting

Treatment should include tools and equipment and

Procedures for repairs of faults such as the failure

of horn, screen wiper, oil pressure gauge, fuel

gauge etc.

 

 

LIST OF FACILITIES AND MAJOR EQUIPMENT/MATERIALS REQUIRED:

  • Motor batteries
  • Battery head moulder set
  • A complete tool box
  • Polythene hand gloves sets
  • Ammeter, voltmeter, multimeter
  • High rate discharge tester
  • Spanners, hand drilling machine
  • Vice
  • Bench/Table
  • Wire brush, bearing extractor, pulley extractor
  • Feeler gauge, soldering iron and lead
  • Emery cloth, wooden file, aprons
  • Jumper cable, magnetic pick-up
  • Googles, plastic trays
  • Hydrometer
  • Tester (Screw driver type)
  • Battery charger, testing lamp, cable stripper, insulation tape

 

 

 


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