Junior Technician (Air Conditioning) Mock Test 2026
📅 Updated: August 2026
Mock test and syllabus for Junior Technician (Air Conditioning) recruitment at SPMCIL.
Junior Technician (Air Conditioning) Key Highlights
Key Highlights
- Total Questions:120
- Total Marks:120
- Duration:120 minutes
- Subjects:3 sections
- Negative Marking:Refer to official notification
Junior Technician (Air Conditioning) Exam Pattern 2026
Exam Pattern
| Subject | Questions | Marks |
|---|---|---|
| Professional Knowledge in respective trade | 85 | 85 |
| Quantitative Aptitude | 20 | 20 |
| Logical Reasoning | 15 | 15 |
Junior Technician (Air Conditioning) Latest Syllabus
Detailed Syllabusâ–¼
- Safety, Tools & Introduction to RAC: Introduction to RAC industry, General workshop safety, electrical safety, PPE, Fire safety, Classification of tools and equipment.
- Basic Thermodynamics & Refrigeration Principles: Concepts of heat, temperature, pressure, work, and energy, Units, Sensible heat, latent heat, Laws of thermodynamics, Refrigeration cycles.
- Electrical Fundamentals for RAC: Basic electrical quantities, Series and parallel circuits, Earthing, Electrical measuring instruments, Single-phase and three-phase systems.
- Electronics Fundamentals: Introduction to semiconductor devices, Diodes, transistors, capacitors, resistors, Rectifiers, Voltage regulation, Basics of ICs.
- Refrigeration System Components: Compressor, Condenser, Evaporator, Expansion devices, Refrigerants (properties, environmental impact), Lubricants and insulation materials.
- Domestic Refrigerators: Construction and working of direct cool refrigerator, Frost-free refrigerator system, Air circulation and defrosting, Common faults and troubleshooting.
- Air Conditioning Systems: Window AC, Split AC, Inverter AC technology, Package AC basics, Car AC system, Comparison of systems.
- Commercial Refrigeration Systems: Water coolers, bottle coolers, deep freezers, Ice plant, cold storage, walk-in coolers, Ice cube machine, Refrigeration load concept.
- HVAC Systems & Advanced Air Conditioning: Psychrometry, Air distribution systems and duct design basics, Fans, blowers, filters, Central AC systems, VRF/VRV systems, Chilled water systems.
- Workshop Calculation & Science: Basic arithmetic, Algebra, Geometry, Units, Density, pressure, force calculations, Heat calculations, Graphs.