- Principal of Refrigeration & Electrical Controlling Devices.
- Type of Compressor & Compressor Repairing Reciprocating & Rotary
- Type of Refrigerant, Oil & Lubrication & Type of Condenser, Oil Separator
- Type of Receiver, Filter, Refrigerant, Control Devices & Refrigerator Wiring
- Type of Evaporator, Type of Refrigerator & Refrigerator Gas Charging & Refrigerator Fault Finding
- Type of Water Cooler & Electrical Wiring, ICE Candy Plant, ICE Plant & 3 Phase Panel Control Wiring
- Air-Conditioning System & Type of Air-Conditioning System Window & Split A.C. Repairing & Wiring of all Domestic A.C. System
- Commercial A.C. System, Package A.C., Ductable A.C., Tower A.C., Casset A.C.
- Basic Electrical, Types of Wiring & Electrical Equipments, Commercial Panel Wiring, Starter
- Commercial Panel Wiring & Starter
- Stabilizer Manual & Automatic, Iron, Geyser & Washing Machine
