Electrician Theory 1st Year (1)

S.No.	Theory Topics Click any one topic to read
1	Scope of the electrician trade  Safety rules and safety signs. What Is Fire and Types Of Fire  Types and working of fire extinguishers.
2	First aid safety practice Hazard identification and prevention.  Personal safety and factory safety.  Response to emergencies e.g. power failure, system failure and fire etc.	COMING SOON
3	Concept of Standards and advantages of BIS/ISI. Trade tools specifications. Introduction to National Electrical Code-2011.	COMING SOON
4	Allied trades:  Introduction to fitting tools, safety precautions. Description of files, hammers, chisels hacksaw frames, blades, their specification and grades.  Marking tools description and use.  Types of drills, description & drilling machines. Various wooden joints.	COMING SOON
5	Marking tools; calipers Dividers, Surface plates, Angle plates, Scribers, punches, surface gauges Types, Uses, Care and maintenance. Sheet metal tools: Description of marking & cutting tools. Types of rivets and riveted joints. Use of thread gauge. Description of carpenter’s tools Care and maintenance of tools.	COMING SOON
6	Fundamentals of electricity, definitions, units & effects of electric current. Conductors and insulators. Conducting materials and their comparison.	COMING SOON
7	Joints in electrical conductors. Techniques of soldering. Types of solders and flux.	COMING SOON
8	Underground cables: Description, types, various joints and testing procedure. Cable insulation & voltage grades Precautions in using various types of cables.	COMING SOON
9	Ohm’s Law; Simple electrical circuits and problems. Kirchoff’s Laws and applications. Series and parallel circuits. Open and short circuits in series and parallel networks.	COMING SOON
10	Laws of Resistance and various types of resistors. Wheatstone bridge; principle and its applications. Effect of variation of temperature on resistance. Different methods of measuring the values of resistance. Series and parallel combinationsof resistors.	COMING SOON
11	Magnetic terms, magnetic materials and properties of magnet. Principles and laws of electromagnetism.Self and mutually induced EMFs. Electrostatics: Capacitor-Different types, functions, grouping and uses. Inductive and capacitive reactance, their effect on AC circuit and related vector concepts.	COMING SOON
12	Comparison and Advantages of DC and AC systems. Related terms frequency, Instantaneous value, R.M.S. value Average value, Peak factor, form factor, power factor and Impedance etc. Sine wave, phase and phase difference. Active and Reactive power. Single Phase and three-phase system. Problems on A.C. circuits.	COMING SOON
13	Advantages of AC poly-phase system. Concept of three-phase Star and Delta connection. Line and phase voltage, current and power in a 3 phase circuits with balanced and unbalanced load..Phase sequence indicator (Meter)	COMING SOON
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