Time: 2 Hours; Marks: 40

1. Electric Room Heater (2)

Construction and working principle of reflector type room heater, common defects, testing and repairs.

2. Electric Iron (2)

Types of electric iron – ordinary type and automatic / thermostat control type – construction and working principles of electric irons. Common defects testing and repairs.

3. Electric Stove (3)

Types of electric stoves- coiled type, covered type, hot plate, grill/oven, cooking range – construction and working principle of electric stoves, common defects, testing and repairs, induction heater, OTG & microwave oven.

4. Electric Toaster (3)

Types of toasters – ordinary and automatic. Construction and working principle of electric toasters. Common defects, testing and repairs.

5. Immersion Heater and Geyser (2)

Construction, working principle and use of immersion heater. Common faults – their causes, testing and repairs. Construction, working principles and use of geyser and thermostat, common defects, their causes, testing and repairs. Testing and installation of geyser. Precautions in using immersion heater and geyser.

6. Electric Kettle and Coffee Percolator (2)

Working principle and use of electric kettle (all types) and coffee percolator. Common faults, their causes, testing and repair.

7. Electric Room Heater (2)

Construction and working principle of blower type room heater. Heat convector – common defects, their causes, testing and repair.

8. Electric Fans (2)

Types of fans – ceiling fan, pedestal fan, table fan, bracket fan, exhaust fan, construction, working principles. Characteristics and applications of electric fans. Common faults, their causes testing and repairs, installation of all purpose fan and exhaust fan.

9. Electric Mixer, Grinder and Blender (3)

Construction, working principles, characteristics and applications of electric mixer, grinder and blender. Common faults, their causes, testing and repairs, servicing, maintenance and over.

10. Electric Washing Machine (2)

Construction, working principles, special features and applications of washing machine, Common faults, their causes, testing and repair, repairing, servicing, maintenance and overhauling of washing machine.

11. Hair Dryer/Curler (2)

Construction and working principles of hair dryer/curler, Common faults, their causes testing and repair.

12. Room Cooler (2)

Construction and working details of room cooler, desert cooler, Common cooler faults, their causes, testing and repair, Installation of room cooler/desert cooler.

13. Vacuum Cleaner (2)

Construction and working principles of vacuum cleaner, common faults, their causes, testing and repair.

14. Emergency Light and Voltage Stabilizer (3)

Construction and working principles of emergency light and voltage stabilizer (manual and automatic), Common faults – their causes, testing and repair.

15. Electric Hand Drill (2)

Construction and working principles of electric hand drill, common faults, their causes, testing and repair. 

16. Electric Motor Used in Domestic Appliances (4)

Split phase, capacitor start, capacitor-run, shaded-pole motors, two speed motors, reverse motors, universal motors, components testing, trouble shooting, and servicing.

17. Basic Occupational and Safety Practices (2)

Safety signs, lighting and handling loads, moving heavy equipments, Electrical safety- safety practices- first aid, Practice safe methods- lifting and handling of heavy objects, Rescue a person from live wire, Artificial respiration- Nelson’s arm and Schafer’s Method.