Applied Technology
G3N tutors you through the full WASSCE Applied Technology syllabus offline — from Introduction to Engine Technology, Introduction to Vehicle Technology, Pre-construction Activities and more — with adaptive lessons, instant quizzes and exam-ready summaries.
Syllabus
What you’ll cover in Applied Technology.
The complete topic outline G3N teaches, mapped to the WASSCE curriculum.
Year 1
9 topicsIntroduction to Engine Technology
- Analyse and use relevant principles underlying engines to service and repair spark ignition (SI) and compression ignition (CI) engines
- Identify types of engines (spark ignition and compression ignition) and describe the main components of the engine
- Explain the constructional and operational differences between petrol and diesel engines
- Demonstrate safety measures applied to servicing, repair and maintenance of engine systems
Introduction to Vehicle Technology
- Detect problems in the vehicle transmission and braking system
- Identify the components of vehicle transmission system and explain their functions
- Evaluate the components of braking system and state their functions
- Differentiate between mechanical, hydraulic and pneumatic braking systems
Pre-construction Activities
- Demonstrate knowledge of human resource requirements in building construction
- Explain the stakeholders involved in a building construction project
- Describe the roles of stakeholders in a building construction project
- Identify the professionals involved in a building construction project
- Describe the roles of professionals (e.g. architects, quantity surveyors, structural and electrical engineers) in building construction projects
- Analyse mobilisation and determine the schedule of works involved in site preparation
- Discuss the reasons for mobilisation before starting construction work
- Differentiate clearly between site preparation and hoarding of a site to facilitate construction works
- Explain how the locations of temporary structures, services, welfare facilities and equipment at a new construction site are specified to ensure order, safety, progress of work and security
Electrical Systems Design
- Outline safety principles for using electricity, analyse the key steps in power transmission and link them to power distribution to substations, homes and industries
- Discuss safety in the use of electricity
- Describe the process of electrical power transmission and distribution
- Apply the concept of power transmission and distribution in electricity supply, including companies responsible for power distribution in Ghana such as ECG and NEDCo
Electronic Devices and Circuits
- Employ knowledge of the construction and operation of diodes to design and construct electronic circuits
- Explain the concept of electrical and electronic circuits
- Describe the principles and operation of the various types of diodes
- Apply the principles of diodes in designing circuits
Engineering Materials, Tools and Machines
- Apply health and safety to the use of tools and machines, and use properties of metals and non-metals to select the right material for a given application
- Explain health and safety related to the workshop, tools, materials and machines
- Explain the uses of various types of measuring, marking out, holding, striking and cutting tools
- Explain ferrous and non-ferrous metals with engineering applications and state the uses of non-metallic materials such as plastics
Welding Technology
- Apply the principle of gas and arc welding to produce artefacts and solve problems in sheet metal and metal plate fabrication
- Identify and explain the use of various tools and equipment for gas welding
- Describe various tools and equipment for electric arc welding
- Indicate the various applications of gas and electric arc welding
- Compare the advantages and disadvantages of gas and electric arc welding
Tools and Machines in Woodwork Industry
- Demonstrate knowledge and understanding of health and safety and apply the appropriate safety measures in the woodworking environment
- Apply the appropriate safety measures in the woodwork shop, including personal safety, workshop safety and material safety
Materials and Artefact Production in Woodwork Industry
- Demonstrate knowledge and understanding of the classification of timber and its processing phases in the woodwork industry
- Classify the two main types of timber (softwoods and hardwoods)
- Outline the processing phases of timber in the woodwork industry
- Demonstrate knowledge and understanding of manufactured boards and their uses in the woodwork industry
- Explain the types of manufactured boards made from wood and non-wood residues
- Discuss the advantages of manufactured boards over solid wood
- Outline the uses of manufactured boards made from wood and non-wood residues
Year 2
11 topicsIntroduction to Engine Technology
- Perform engine cooling and lubrication system inspection, maintenance, diagnosis and repairs with limited supervision
- Explain engine cooling systems and describe the construction and operation of air-cooling systems
- Describe the construction and operation of thermosyphon and pump-assisted water-cooling systems
- Describe the construction and operation of thermostat and pressurised water-cooling systems
- Examine the parts of lubrication systems and identify the engine components to be lubricated
- Describe types of lubrication systems (mist, wet sump and dry sump), oil pumps and oil filters
- Explain the properties and classifications of engine lubricating oil and crankcase ventilation
Introduction to Vehicle Technology
- Perform steering and suspension system inspection, maintenance, diagnosis and repairs with limited supervision
- Explain front axle and stub axle, their types and functions
- Describe the main components of the steering system and explain steering geometry and the angles involved
- Describe the layout of vehicle suspension systems
- Explain leaf, coil and air suspension systems
- Describe an independent suspension system and its working principles
- Describe vehicle wheels and tyres
Engineering Materials, Tools and Machines
- Develop and apply skills of heat treatment to a particular metal and perform operations using grinding, drilling, lathe and shaping machines
- Describe various heat treatment processes with engineering examples and explain equilibrium diagrams
- Describe twist drills and use drilling and grinding machines
- Demonstrate the use of lathe and shaping machines
- Demonstrate the use of the milling machine and cutting fluids
- Explain the various machining processes and relate them to the manufacturing industry
- Apply the principles of sand casting to produce articles
Welding Technology
- Apply knowledge of key processes and tools in welding technology and fabrication to carry out tasks on sheet metal projects
- Explain basic metal forming processes with engineering products
- Demonstrate forging, rolling and extrusion operations in sheet metal
- Perform basic cutting and bending operations in sheet metal fabrication
- Use a die and press to cut and form sheet metal to a desired shape
- Generate and outline the sequence of operations involved in making artefacts
- Explain and use the various tools and equipment for soft and hard soldering
Substructure and Superstructure
- Categorise and describe foundations used under various soil conditions
- Explain the substructure of buildings and its functions
- Explain what setting out is and discuss methods of setting out
- Discuss methods of excavating foundation trenches
- Discuss the various types of foundation used given the soil condition
- Explain foundation footing and the materials used in laying the footing course
- Discuss formwork and the materials and functions of formworks
- Discuss floor construction, including the composition and functions of a floor (including basement floors)
- Differentiate load-bearing from non-load-bearing components and explain their functions in the superstructure
- Explain load-bearing and non-load-bearing members of the superstructure
- Discuss wall construction, including types and functions of walls
- Discuss doors, windows and their frames, including types and materials used
- Discuss roofs, including types, functions and materials used in roofing
- Discuss ceilings, including materials and functions of ceilings in the superstructure
Tools and Machines in Woodwork Industry
- Demonstrate knowledge and understanding of hand tools and machines and select the right tool and machine for a specific woodwork operation
- Select and use appropriate hand tools for a specific woodwork operation, including geometrical tools, abrading cutting tools, paring and shaving tools, boring tools, impelling tools and holding tools
- Explain how to care for and maintain hand tools
- Select and use appropriate machines for a specific woodwork operation, including circular saw, crosscut saw, band saw, dimension saw, surface planer and thicknesser
- Explain how to care for and maintain hand tools and machines
Materials and Artefact Production in Woodwork Industry
- Apply knowledge and understanding in the design and making of artefacts, translate ideas into drawings using Computer Aided Design (CAD), produce working drawings from the final solution and generate a model
- Apply Computer Aided Design (CAD) in designing and making artefacts
- Produce working drawings from the final design solution
- Select appropriate materials suitable for producing the final solution
- Produce a model from working drawings
- Apply knowledge and understanding of joints, adhesives and finishes in woodwork artefact production
- Select and use appropriate joints for a specific woodwork operation
- Explain the uses of different types of adhesives
- Explain the uses and application of different types of finishes (e.g. staining, varnishing, painting, spraying and polishing)
- Apply an appropriate finish to an artefact
Electrical Systems Design
- Apply appropriate tools and wiring systems to carry out key wiring processes
- Explain house wiring and provide reasons for doing good wiring
- Describe tools and equipment used for house wiring (e.g. pliers, side cutters, laser level, multimeter)
- Identify the various materials and accessories used for house wiring (e.g. cables, protective devices)
- Describe the sequence of supply-control equipment in a consumer's premises (service fuse, meter, mains switch, distribution board)
- Describe how a circuit is protected against excess current using fuses and circuit breakers
- Describe the various methods of house wiring (surface, conduit and trunking)
- Wire final circuits in accordance with Institute of Electrical Engineers (IEE) regulations
- Apply knowledge of final circuits in a practical situation
Electronic Components and Circuits
- Demonstrate knowledge and understanding of electronic components and use them to design and construct electronic circuits
- Describe resistors as passive electronic components, including types (wire wound, carbon) and calculate values using colour codes
- Describe capacitors as passive electronic components, including types (electrolytic, ceramic) and calculate values using colour codes
- Describe inductors as passive electronic components, including types and functions in a circuit
- Describe the types of cells and their functions in circuits
- Illustrate the construction of transistors (BJT, FET and unijunction transistors)
- Illustrate the principles of operation of the various transistors (BJT, Junction FET, MOSFET and unijunction transistor)
- Apply the principles and operation of transistors in designing circuits such as amplifiers
- Describe the types of control systems (open loop and closed loop) and give practical examples
Electrical Machines and Appliances
- Demonstrate knowledge and understanding of electrical machines and appliances and apply the knowledge in servicing electrical appliances and circuits
- Describe the construction and principle of operation of AC motors (induction and synchronous types)
- Describe the construction and principle of operation of DC motors (series, shunt and compound types)
- Describe the construction and principle of operation of AC generators (revolving field and stationary field types)
- Describe the construction and principle of operation of DC generators (series, shunt and compound types)
- Describe the construction and principle of operation of a transformer
- Explain losses that occur in a transformer (core losses, bearing friction loss) and how they affect transformer performance
- Describe the methods of cooling transformers (air cooling, oil cooling, water cooling and artificial cooling)
- Calculate voltage regulation of transformers
Electronic Components and Advanced Circuits
- Demonstrate knowledge and understanding of advanced electronic components and use them to design and construct electronic circuits
- Describe the features and principles of operation of integrated circuit timers (555 and 556)
- Apply the principle of operation of timers in designing circuits (e.g. multivibrators)
- Describe the features and principles of operation of operational amplifiers (op-amps 741 and 4558)
- Apply the principle of operation of op-amps in designing circuits (comparators, inverting and non-inverting amplifiers)
- Describe types of logic gates (AND, NAND, OR, NOR, NOT)
- Solve problems on Boolean Algebra using elements, operations and basic axioms
- Describe the truth table for the various logic gates and determine the output function of the various gates
- Manipulate and simplify Boolean Algebra using the redundancy theorem, race-hazard theorem and De Morgan's theorem
Year 3
9 topicsIntroduction to Engine Technology
- Analyse fuel supply, air intake, exhaust, supercharger and turbocharger systems for both spark ignition (SI) and compression ignition (CI) engines
- Describe the main components of the fuel supply system for spark ignition (SI) engines (fuel tank, fuel filter, fuel pump, carburettor, petrol injection system)
- Describe the main components of the fuel supply system for compression ignition (CI) engines (fuel tank, fuel filters, fuel injection pump, injectors)
- Explain the air intake system of the engine and state the functions of the main components
- Describe the principle of supercharger and turbocharger systems
- Describe the main components of the vehicle exhaust system (exhaust manifold, oxygen sensor, catalytic converter, muffler, exhaust pipes)
- Discuss the function and types of catalytic converter (two-way and three-way)
Introduction to Vehicle Technology
- Perform diagnosis and repair on vehicle electrical and electronic systems, and analyse the air conditioning system and safe motoring
- Describe batteries, ignition and starting motor systems of the vehicle
- Describe charging system, lighting, auxiliary and instrument panel systems of the vehicle
- Explain basic automotive electronics and engine management systems (transistorised and electronic ignition)
- Explain offboard and onboard diagnostics (OBD I and OBD II) and the use of scan tools for vehicle diagnosis
- Examine and describe the operation of the electric vehicle (EV)
- Describe the basic operation of the automotive Heating, Ventilation and Air Conditioning (HVAC) system and safe motoring practices
Engineering Materials, Tools and Machines
- Be able to use selected manual and computerised machines
- Describe computing coding language used in Computer Numerical Control (CNC) machines (e.g. G-code)
- Describe the main features and perform operations using CNC turning machines
- Describe the main features and perform operations using CNC milling machines
- Describe the main features and perform operations using CNC drilling and grinding machines
- Describe and perform operations using 3D printers
- Describe and perform operations using lasers
Welding Technology
- Outline the basic techniques applied in design for manufacture
- Explain and perform the stages in design for manufacture (problem identification, generating solutions, selecting and making the artefact)
- Describe the entrepreneurial skills in metal work
- Describe and apply a simple soldering and brazing joint design for manufacture
- Describe and apply mechanical fasteners and finishes in design for manufacture
- Explain special welding techniques used in design and manufacture (e.g. spot welding and Gas Metal Arc Welding)
- Explain special welding techniques used in the oil and gas industry
Substructure and Superstructure — Building Services and Finishes
- Outline the purpose of services and determine the schedule of works involved in installing electricity, cold water and waste disposal in a typical three-bedroom self-contained house
- Discuss the reasons for providing services (electricity, cold-water supply and waste disposal) in buildings
- Distinguish electricity supply, cold-water installation and waste disposal as different forms of building services
- Explain the schedule of works involved in installing electricity in a building
- Explain the schedule of works involved in installing cold-water supply in a building
- Explain the schedule of works involved in installing waste disposal (liquid and solid waste) in a building
- Explain surface drainage systems and discuss their types and benefits
- Determine the basic finishes used for the different building components of a simple three-bedroom self-contained house
- Discuss finishes — their meaning, types and functions in buildings
- Discuss finishes applied to floors (e.g. sand cement screed, tiles, terrazzo, wood flooring and paint)
- Discuss finishes applied to walls (types of wall finishes, construction technology for applying them, adhesives and tools required)
- Discuss finishes applied to roof carcasses (e.g. micro concrete roofing tiles, wooden shingles, translucent roofing sheets, thatch, corrugated aluminium or galvanised sheets)
- Discuss finishes applied to ceiling joists (e.g. plywood, soft boards, timber tongue-and-groove, paint and plaster of Paris)
- Discuss finishes applied to fascias, railings and plinths of a building
Tools and Machines in Woodwork Industry
- Be able to select and use appropriate machines for a specific operation independently
- Select an appropriate woodwork machine for a specific operation independently (mortising machine, router shaping machine, grinding machine, lathe machine, drum sander machine)
- Use an appropriate woodwork machine for a specific operation independently
- Demonstrate how to care for and maintain woodwork machines
Materials and Artefact Production in Woodwork Industry
- Demonstrate knowledge and understanding of the sustainable timber industry in Ghana
- Determine the availability and sources of Lesser-Known Timber Species (LKS) and Lesser-Used Timber Species (LUS)
- Classify Lesser-Known Timber Species (LKS) and Lesser-Used Timber Species (LUS)
- Discuss the uses of Lesser-Known Timber Species (LKS) and Lesser-Used Timber Species (LUS)
- Identify the sources of Non-Timber Forest Products (NTFPs) using research tools
- Classify Non-Timber Forest Products (NTFPs)
- Discuss the uses of Non-Timber Forest Products (NTFPs)
- Demonstrate knowledge and understanding of mass production, environmental impact and entrepreneurship in the woodwork industry in Ghana
- Describe basic techniques in mass production in the furniture industry
- Discuss the impact of the woodwork industry on the environment
- Describe basic entrepreneurship skills and opportunities in the woodwork industry
Electrical Systems Design
- Demonstrate knowledge and understanding of electrical machines and appliances and apply the knowledge in servicing electrical appliances and circuits
- Describe the construction and principle of operation of AC motors
- Describe the construction and principle of operation of DC motors
- Describe the construction and principle of operation of AC generators
- Describe the construction and principle of operation of DC generators
- Describe the construction and principle of operation of a transformer
- Explain losses in a transformer and how they affect transformer performance
- Describe the methods of cooling transformers
- Calculate voltage regulation of transformers
Electronic Components and Circuits
- Demonstrate knowledge and understanding of advanced electronic components and use them to design and construct electronic circuits
- Describe the features and principles of operation of integrated circuit timers (555 and 556)
- Apply the principle of operation of timers in designing circuits such as multivibrators
- Describe the features and principles of operation of operational amplifiers (op-amps 741 and 4558)
- Apply the principle of operation of op-amps in designing circuits (comparators, inverting amplifiers and non-inverting amplifiers)
- Describe types of logic gates (AND, NAND, OR, NOR, NOT) and their symbols
- Solve problems on Boolean Algebra
- Describe the truth table for the various logic gates and determine the output function of the various gates
- Manipulate and simplify Boolean Algebra using the redundancy theorem, race-hazard theorem and De Morgan's theorem
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