WAEC syllabus 32/waec-auto-mechanics-syllabus
WAEC Auto Mechanics Syllabus

SCHEME OF EXAMINATION

The examination shall consist of three papers, Papers 1, 2 and 3; all of which must be taken. Papers 1 and 2 will be composite and will be taken at one sitting.
PAPER 1: Will comprise forty multiple choice objective questions, all of which must be answered within 1 hour for 40 marks.
PAPER 2: There will be five essay questions out of which candidates will be required to answer four in 1½ hours for 60 marks.
PAPER 3: This will be a practical test comprising two compulsory questions to be attempted by candidates in 2 hours for 100 marks.
Schools will be required to supply materials needed for the practical test by their candidates.

EXAMINATION SYLLABUS

 S/NO. TOPIC THEORY PRACTICAL   1 WORKSHOP 1.1 Instructions in basic safety 1.1.1 Identification and use    REGULATION rules relating to personnel, of various safety    S AND tools, equipment and devices e.g. aprons,    SAFETY environment. goggles, shield, etc.    1.2 Types of fire extinguishers. 1.2.1 Demonstration/use    Foam, dry powder, sand, of fire extinguishers.    water and wet-blanket types   2 BASIC TOOLS, 2.1 Use of basic tools e.g. 2.1.1. Identification and    INSTRTUMENTS AND hand tools and power use of basic tools.    EQUIPMENT tools.    2.2 Use of measuring 2.2.1 Identification and    instruments use of measuring    instruments.    2.3   Use of basic equipment 2.3.1 Identification and use    e.g. jacks, hoist, air- of basic equipment.    compressors, etc.  
  3 LAYOUT OF A 3.1   Layout of a conventional    MOTOR VEHICLE motor vehicle.    3.2.   Functions of the main    components.  
3.1.1 Inspection of the layout of a motor vehicle. 
3.2.1 Identification of the main components. 
  3.3 Drive arrangements: 3.3.1 Inspection of the drive    Front engine rear wheel arrangements.    drive, rear engine rear    wheel drive, front engine    front wheel drive, four-    wheel drive.   4 ENGINE 4.1 Classification of engine 4.2.1 Identification of main    (a) Main Components (petrol and diesel components.    engine) and their main    parts.    4.2 Arrangement and 4.2.2 Decarbonization of    functions of the main cylinder head.    components: Cylinder    head and cover; cylinder    block,    crankshaft, flywheel,    connecting rod, piston    and rings, spark plug    (petrol) fuel injection    pump and injector    (diesel), valve, valve    springs, oil seal, cam-    shaft, push rod, rocker    shaft/arms.    (b) Principles of 4.3 Two stroke and four stroke 4.3.1 Identification of two    operation. cycle petrol and diesel and four stroke engines.    engine.    (c) Types of engine    4.4 Advantages and    disadvantages of petrol    and diesel engines.    4.5 Single and 4.5.1 Inspection and    multi-cylinder engines. classification of engines    (d) Crank according to cylinders.    arrangement 4.5.2 Compression test.    and firing order. 4.5.3 Measurement of the    bore and crank-    journals for wear.    4.6 Crank arrangement and 4.6.1 Determination of    (e) Valve- firing orders: 2, 4 and 6 firing order through    operating cylinder in-line engines. valve opening.    mechanis V-4,V-6 and 4-cylinder 4.6.2 Fault diagnosis.     horizontally-    opposed engines.    4.7 Functions and operation 4.7.1 Identification of main    of valve operating components.    mechanisms. Drives 4.7.2 Valve adjustments.    layout, main 4.7.3 Fault diagnosis.    components, 4-cylinder    12 – and 16 - valve    engine. Valve    timing including    calculation of valve    opening and closing    periods.   5 FUEL SUPPLY SYSTEMS   5.1 Fuels and combustion: 5.1.1 Checking fuel    elements of combustion; system troubles.    air-fuel ratios; types and 5.1.2 Inspection of exhaust properties of fuel-petrol gases for normal air-fuel    and diesel. ratios and excessively worn engine.    5.2 Petrol: Layout and 5.2.1 Inspection layout of    operation of petrol supply petrol supply system:    system-gravity and force- dismantling,    feed systems: examination and    simple carburetor, reassembling of a    multi-jet carburetor. mechanical fuel pump.    Air filters/cleaners.    Mechanical and electrical 5.2.2 Fault diagnosis.    fuel pumps. Advantages    and disadvantages.    5.3 Petrol-injection system: 5.2.3 Dismantling, inspection    Merits and demerits. and reassembling of a Electronic Fuel (Petrol) carburetors.    injection (EFI). 5:3:1 Identify the main components  

  5.4  Diesel: Layout of a diesel 5.4.1   Inspection of various   supply system: types of injection   elementary treatment of pumps, servicing of   injection pumps and injectors and bleeding.   injectors. Cold starting   devices.    6 EXHAUST SYSTEM 61 Purpose and layout of 6.1.1 Inspection of exhaust    the system. Types of system and    silencers and manifolds. identification of the    exhaust and inlet    manifolds.    6.1.2   Checking the system for    leakage.   7 LUBRICATION 7.1 Engine Lubrication: 7.1.1 Identification of main    Reasons for lubrication components.    and types: boundary    layer and film lubrication. 7..2.1   Changing of oil and oil    Lubricated parts and filters. components.    7.2 Types of feed-splash, 7.2.2. Servicing and testing of    forced and petroil. (Wet pumps    and dry). Principle of    operation of  gear and    rotor oil pumps. Oil filters. 7.2.3 Fault diagnosis    7.3 Lubricants:  Applications 7.3.1. Identification of different    in engines, transmission, types of lubricants.    steering, suspension Comparing fresh and    system and doors: used oil. Use of grease    Viscosity rating, SAE gun and oil can.    numbers.   8 COOLING SYSTEM 8.1 Process of heat transfer.    8.2 Water Cooling System: 8.2.1 Identification of main    Purpose and layout of components, inspection    the system: functions of of radiator and its    main components. construction, replacement    Thermo-syphon and of fan belt and hoses.    pump assisted systems.    Elementary treatment of 8.2.2 Flushing.    pressurized cooling    system. 8.2.3 Fault diagnosis.    Thermostats: Purpose    and types. (bellows and    wax pellet).    8.3.1 Fault diagnosis.    8.3 Air Cooling System:    Layout and functions of    the system: main     components.    Comparison of the air    and water cooled    systems.   10 TRANSMISSION 9.1 Function and layout of 9.1.1 Identification of    SYSTEM the transmission different types of    (a) Layout system. layout.    Types-manual and    automatic (excluding    twin axles and double    reduction axles) merits    and demerits.    (b) Clutch 9.2 Functions of a clutch. 9.2.1 Dismantling,    Assembly Types and operating identifying parts and    principles of single plate re-assembling a clutch    and multiplate. unit (single plate).    Methods of actuation- Adjusting clutch pedal    hydraulic and clearance and    mechanical. Simple bleeding clutch unit.    calculations. 9.2.2 Fault diagnosis.    9.3 Introduction to    automatic transmission.    Functions of torque    converter and fluid    flywheel.    (c) Gearbox 9.4 Types, layout and 9.4.1 Identification of    operating principles of components of a    sliding-mesh, constant gearbox.    mesh and synchromesh    gearboxes; main 9.4.2 Inspection of gear teeth    components and their for wear.    functions. Gear selector    mechanism; simple 9.4.3 Fault diagnosis.    calculations of gear    ratios.    (d) Propeller  shaft 9.5 Functions and types of 9.5.1 Examination of the    and universal joint. the propeller shaft, propeller shaft and    universal joint and universal joint bearings    sliding joint. for bow and wear    respectively.    (e) Rear Axle 9.6 Purpose of rear axle. 9.6.1 Identification of main    Arrangement and components.     functions of main    components: final drive, 9.6.2 Fault diagnosis.    differential unit, half -    shaft, oil seal and hub 9.7.1 Identifying main    bearings. components.    9.7 Methods of supporting    axle shafts. Advantages    and disadvantages   10 WHEELS AND TYRES 10.1 Types of wheel rims: 10.1.1 Checking and    pressed steel, disc and adjustment of wheel    wire spoke wheels. bearing clearance,    Hub attachments. removal and changing    Wheel balancing. of road wheels.    Tyre sizes and    markings.    10.2 Tyres: tubed and 10.2.1  Tyre fitting and checking    tubeless types: tyre pressure.    Advantages and 10.2.2 Tube and tyre patching.    disadvantages.    10.3 Wheel balancing, tyre 10.3.1 Wheel balancing.    sizes, markings.   11 BRAKING SYSTEM 11.1 Layout, functions and 11.1.1 Inspection of different    operation of braking types of brakes.    system, drum and disc, Replacement of pads and    mechanical and shoes, bleeding and    hydraulic. Brake lining adjustment. “Spottesting”    materials and methods of brakes.    of attachment. 11.2.1 Fault diagnosis.    Importance of servo-    assisted brake.    Advantages and    disadvantage of disc    and drum brakes.    11.2 Brake fault.      12 STEERING SYSTEM 12.1 General layout and 12.1.1 Identification of main    functions of the front components of different    axle and steering layout.    systems.    12.2 Steering geometry. 12.2.1 Front  wheel alignment,    Ackerman linkage, inspection of tyre wear    castor, camber, king pin patterns.    inclination, toe-in and    toe-out. Types of    steering gearboxes-rack    and pinion, recalculating    balls only.     12.3 Steering faults 12.3.1 Fault diagnosis.      13 SUSPENSION SYSTEM 13.1 Purpose of the 13.1.1 Identification of    suspension system, differences between    layout and types, rigid the rigid beam and    beam and independent. independent    Suspension (semi- suspension.    elliptic and coil springs);    advantages and 13.1.2 Fault diagnosis.    disadvantages, dampers    (shock absorbers.)   14 ELECTRICAL SYSTEMS 14.1 Basic electrical terms 14.1.1 Setting up simple    (a) Fundamentals and symbols. A.C and electrical circuits, use of    D.C sources, simple simple electrical    circuits, Ohm’s law and measuring instruments.    calculations involving    series and parallel circuits.    Basic components and their    functions-relays,    resistors, lamps, fuses    and switches.    14.2 Wire gauges, colour 14.2.1 Inspection and    (b) Auto Wiring system coding – reasons for identification of various    their use. Wiring components.  Simple    system – earth and soldering and joining of    insulated returns: ways of cables.    joining cables- jointing,    terminals, connectors and    soldering.    14.3 Purpose, construction    (c) Battery and testing of lead-acid 14.3.1 Examination and    battery. Electrolyte testing of lead-acid    composition.  Battery battery. Preparation of    care and maintenance. electrolyte.  
14.4 Layout of the coil 
  ignition system. Function 14.4.1   Identification of main   (d)  Ignition System and operation of the main components; ignition    components. timing, setting of     Introduction to contact breaker points    computerized ignition and spark plug gaps.    system.    14.5   Layout and functions of    the main components.    Types of starter motor. 14.5.1 Inspection and    (e) Starting System identification of main    14.6 Purpose and layout components.    (dynamo and    alternator). 14.6.1 identification of the    (f) Charging System Main components and component parts.    their operation.    Comparison of d.c and    a.c generators.    14.7 Layout of the system    main components and    their functions. Fuses 14.7.1 Identification of main    (g) Lighting System and bulbs-types and components,    ratings. inspection and    replacement of bulbs    14.8 Layout and operations of and fuses.    the auxiliary units. 14.7.2 Head lamp focusing.    Instrument panel, horn, 14.8.1 Inspection and testing    (h) Auxiliary Unit windscreen wiper. of main components.    14.9 Electrical faults.    14.9.1. Fault diagnosis.   15 ELECTRONICS 15.1 Explanation of the tem    (a) Fundamentals of Auto Electronics. 15.1 Identification of    Electronics. Identification of components.    electronic components:    diodes, transistors,    resistors, capacitors,    LED, transducers, coil    and motors.    Functions of    components.  Symbols    in a circuit.    (b) Electronic Ignition 15.2 Operation of    transistorized ignition    system. Types of    transistorized and    electronic ignition     system: Inductive and    hall effect. Merits and    demerits.    (c) Electronic Fuel 15.3   Purpose and type of 15.3.1 Identification of    Injection systems (single-point components in systems    and multi-point (single-point and multi-    injections). point).   16 AUTO AIR- 16.1 Purpose, layout and 16.1.1 Inspection and    CONDITIONIN identification of major identification of air-    G components conditioning system    (compressor, and the components.    condenser, evaporator    and dryer). Principles of    operation.    .   17 SAFE MOTORING 17.1 Main causes of 17.1.1 Identification of faults    accident, essentials of and defective    safe driving and components that could    application of highway cause accidents.    code and safety Identification and    devices. interpretation of road    signs.    RECOMMENDED READING LIST   1. Technology for Motor Mechanics Volumes 1 – 4 by S. C. Mudd (Edward    Arnold    Publishers).   2. Vehicle and Engine Technology by Heinz Heister   3. Motor Vehicle Technology and Practical Work by J. A. Dolan   4. Fundamentals of Motor Vehicle Technology by Hillier and Pittuck    (4th Edition)   5. Automobile Engine and Vehicle Technologyby Ian Chisholm   6. Motor Vehicle Technology (Books I and II) by R. W. Bent   7. Motor Vehicle Mechanic’s Textbook by E. K. Sulley    (New Edition)   8. Highway Code 
9. Motor Vehicle Technology for Mechanics by  P. P. J Read and V. C. Reid.

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