WAEC Refrigeration and Air-Conditioning Syllabus
Every section, topic and candidate objective in the official WAEC Refrigeration and Air-Conditioning outline — 1 sections, 3 topics and 3 objectives.
- Sections
- 1sections
- Topics
- 3topics
- Objectives
- 3objectives
- Category
- Technical & Vocationalcategory
Syllabus sections
1 sectionTap a section to open it, then tap a topic to see its content and objectives.
1Detailed Syllabus
3 topics · 3 objectives
1Safety, Energy/Matter Fundamentals, Temperature, Pressure, and Gas Laws
1 content item · 1 objective
Content
Workshop safety rules, PPE equipment, fire extinguishers, first aid, energy forms/conversion, internal energy, enthalpy, pressure-enthalpy (p-h) diagrams, states/changes of matter, compressor power calculations, thermometry, temperature scale conversions, pressure measurement devices (manometers, Bourdon gauges), suction/discharge pressure gauges, and gas laws (Boyle's, Charles', Dalton's, General)
Objective
Enforce safety regulations, operate fire extinguishers, and administer first aid; demonstrate mechanical to heat energy conversion and phase changes of matter; compute compressor power consumption in watts/kilowatts; convert temperature scales (Celsius, Fahrenheit, Kelvin, Rankine) and identify fixed temperature points; measure pressure using barometers, manometers, and Bourdon gauges; solve numerical calculations using general gas laws.
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2Refrigeration Cycles, Refrigerants, Air-Conditioning Processes, and Components
1 content item · 1 objective
Content
Basic refrigeration cycle (evaporation, compression, condensation, expansion), layout diagrams, system components/accessories (relays, thermostats, solenoids, capacitors), refrigerant types/classifications/cylinder colour codes, chemical formulae, flow controls (TEV, AEV, capillary tube), psychrometric properties of air, psychrometers, sensible/latent heat, compressor types/constructions, condenser types/servicing/heat load, liquid receivers, service valves, and evaporator types/construction/servicing
Objective
Explain the vapor compression refrigeration cycle and system accessories; identify refrigerants by chemical names, formulae, properties, and cylinder color codes; operate expansion devices (TEV, AEV, capillary); measure air psychrometric properties using sling psychrometers and distinguish latent vs sensible heat; evaluate construction and working principles of compressors, condensers, and evaporators; service condensers and evaporators and compute heat load estimates.
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3Workshop Practices, Installation, Insulation, and Entrepreneurship
1 content item · 1 objective
Content
Basic RAC hand tools, window unit AC servicing, systematic fault diagnosis, leak detection, electrical continuity/polarity testing, compressor/motor/condenser/evaporator repairs, condenser/evaporator piping, ducting/trunking installation, split unit AC installation, electric motors/generators installation and maintenance, cold room principles/installation, insulating materials (glasswool, polystyrene foam, bitumen) and procedures, business enterprise types, startup funding, marketing protocols, and basic accounting records (ledgers, balance sheets)
Objective
Use basic RAC tools for cutting, reaming, flaring, and bending tubes; service window and split unit air-conditioners; execute leak testing, insulation continuity, pressure testing, and fault troubleshooting; perform piping, ducting, trunking, and motor/generator maintenance; explain cold room operations and installation procedures; select and apply thermal insulating materials correctly; formulate business plans, conduct market surveys, source capital, and prepare ledgers and balance sheets.
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