Syllabus for the Post of Electrician Gr II
Kerala Public Service Commission
Total Marks: 100
Module 1: Basic Electronics (5 Marks)
- Active and Passive components
- Resistors
- Resistor types
- Resistor colour code
- Capacitors
- Types of capacitors
- Resistors in series
- Resistors in parallel
- Series and parallel connection of capacitors
- Inductors
Module 2: Power Supply Circuits (5 Marks)
- Intrinsic and extrinsic semiconductor
- PN junction diode
- Forward and Reverse characteristics
- Specification of diodes
- Special semiconductor diode:
- Zener diode
- Tunnel diode
- Rectifiers:
- Half wave rectifier
- Full wave rectifier (bridge & centre tapped)
- Filters:
- Introduction, purpose and use of ripple filter
- Types of filters: capacitor filter & Inductor filter
- Voltage regulators:
- Introduction & purpose
- Zener regulators
- Series regulators
Module 3: Transistor & Amplifiers (5 Marks)
- Transistors
- NPN & PNP transistor
- Symbol
- Operation
- Input and output characteristics
- Biasing of transistor
- Transistor CB, CC, CE configurations
- Current gain, voltage gain, and power gain
- Amplifiers:
- Classification of amplifiers
- Voltage amplifiers
- Single stage CE amplifier
- Emitter follower circuit
- RC coupled amplifier
- Voltage and power amplifier
Module 4: Oscillators (5 Marks)
- Oscillators:
- Basic working principle
- Introduction to positive feedback
- Requisites of an oscillator
- LC oscillators and RC oscillators
- Colpitts oscillator
- Hartley oscillator
- Crystal oscillator
- RC phase shift oscillator
- Wien bridge oscillator
- Multivibrators:
- Astable multivibrator
- Monostable multivibrator
- Bistable multivibrator
Module 5: Digital Electronics (5 Marks)
- Number systems:
- Decimal number system
- Binary number system
- Octal number system
- Hexadecimal number system
- BCD code
- Number system Conversions:
- Binary to decimal conversion
- Decimal to binary conversion
- Decimal to octal conversion
- Octal to binary conversion
- Hexadecimal to binary conversion
- Binary to hexadecimal conversion
- Logic gates:
- OR gate
- AND gate
- NOT gate
- NAND gate
- NOR gate
- XOR gate
- Logic families and their comparison
Module 6: Communication Electronics (5 Marks)
- Communication system
- Radio wave propagation
- Modulation and Demodulation
- Types of modulation
- Amplitude Modulation (AM)
- Modulation index
- Types of AM
- Bandwidth in AM
- Frequency Modulation (FM)
- Modulation index in FM
- Bandwidth in FM
- Phase Modulation (PM)
- Digital modulation techniques
- Superheterodyne AM receiver
- Basics of Mobile communication
Module 7: DTH & Cable TV (5 Marks)
- Satellite communication – introduction
- Electromagnetic spectrum and Frequency bands in Satellite communication
- DTH – introduction
- DTH Terminology and components
- Dish assembly
- Mount Assembly
- Basics of Digital cable technology
- Headend system & Distribution Network
- Multiplay digital services
- FTTH
Module 8: UPS and Inverters (5 Marks)
- UPS:
- Introduction
- Block diagram of UPS
- Working principle of UPS
- Types of UPS
- Inverter:
- Introduction to inverter
- Block diagram of inverter
- Working principle
- Applications
Module 9: Solar Power (5 Marks)
- Solar energy principles
- Solar cell
- Solar cell materials
- Types of solar cells
- Working of solar cell
- Photovoltaic module
- Photovoltaic array
- Solar Photovoltaic (SPV) system
- Safety precautions in solar electric system
- Maintenance of solar electric system
Module 10: Electronic Home Appliances (5 Marks)
- Basic principle, Working and operation of LCD TV and LED TV
- Home Theatre
- Audio speaker – type and features
- Bluetooth and Wireless connectivity
- LED light system
- LED bulbs
- Emergency lamp
- Induction cooktop
Module 11: Basic Electricity and Safety Practice (5 Marks)
- Safety rules
- Fire, types of fire
- Fundamentals of electricity
- Soldering techniques and flux
- Conductor, Insulator, Semiconductor
- Types of wires and cables
- Ohm’s law
- Kirchhoff’s law
- DC series and parallel circuits
- Open and short circuits
- Laws of resistance
- Methods of measuring low, medium, high value resistances
- Effect of temperature on resistance
Module 12: Magnetism (5 Marks)
- Types of magnets
- Classification of magnetic substances
- Properties and different terms related to magnets
- Methods of magnetising
- Electromagnetism
- Right hand grip rule and palm rule
- MMF, flux, reluctance, flux density, permeability
- Hysteresis
- Inductance, counter EMF
- Faraday’s laws of electromagnetic induction
Module 13: Alternating Current and Earthing (5 Marks)
- Alternating current
- Inductive reactance, capacitive reactance, impedance, power factor
- RLC series and parallel circuits
- Series and parallel resonance circuits
- Power triangle, power factor improvement
- Wiring accessories
- Types of wiring both domestic and industrial
- Grading of cable and wires
- Current rating
- Testing of domestic installation
- Earthing, types of earthing
Module 14: DC Machines (5 Marks)
- DC Generators and Types
- EMF equation of DC generator
- DC series, shunt and compound Generator
- DC motors and types
- Back EMF
- DC motor starters 3 point, 4 point
- Speed control methods of DC machine
- Braking of DC motors
- Losses and efficiency
Module 15: AC Machines (5 Marks)
- Principle of induction motor
- Types of AC motors
- DOL, Star delta, rotor resistance motor starter
- Auto transformer starter
- No load and blocked rotor test
- Speed control of AC motors
- Types of Single phase motors
- Alternator
- EMF equation of Alternator
- Synchronous motor
Module 16: Measuring Instruments and Transformers (5 Marks)
- Measuring Instruments and classification
- Indicating, integrating, recording instruments
- Deflecting torque, Controlling torque and Damping Torque
- Two wattmeter method of power measurement
- Megger, earth tester
- Instrument transformers
- Range extension of meters
- Basic principle of Transformer
- Parts and classification of transformer
- EMF equation of transformers
- Parallel operation of Transformers
- Voltage regulation and efficiency
- Methods of Cooling
- Protective Devices
Module 17: Illumination and Domestic Appliances (5 Marks)
- Terms used in illumination
- Laws of illumination
- Types of lamps
- Domestic appliances:
- Geyser
- Electric iron
- Food mixer
- Cooking range
- Induction cooker
- Grinder
Module 18: Types of Relays and Circuit Breakers (5 Marks)
- Classification of relays
- Types of relay:
- Over current relay
- Over voltage relay
- Under voltage relay
- Differential relay
- Earth fault relay
- Distance relay
- Admittance relay
- Impedance relay
- Reactance relay
- Air circuit breaker
- Vacuum circuit breaker
- SF6 circuit breaker
Module 19: Power Generation and Transmission (5 Marks)
- Sources of energy Generation
- Various types of power generation
- Transmission and Distribution
- Electrical substation
- Non conventional sources of power generation
- Line insulators
- AC and DC transmission comparison
Module 20: Cells and Batteries – Control Panel Wiring (5 Marks)
- Chemical effect of electricity
- Faraday’s laws of electrolysis
- Types of Primary and secondary cells
- Cathodic protection in electroplating
- Grouping of cells
- Solar cells
- Control panel wiring accessories
- AC/DC drives
Note: It may be noted that apart from the topics detailed above, questions from other topics prescribed for the educational qualification of the post may also appear in the question paper. There is no undertaking that all the topics above may be covered in the question paper.
