SYLLABUS FOR THE TRADE OF ELECTRONIC MECHANIC

UNDER CRAFTSMANSHIP TRAINING SCHEME

(Week Number:1-26)

Weekwise Syllabus: 1, 2-3, 4, 5-6, 7, 8-9, 10-11, 12, 13, 14, 15-16, 17, 18-19, 20, 21-23, 24-26 

No. of Weeks

Syllabus List

Theory

Practical

Equipment Required

Engineering Drawing

Workshop Calculation & Science

1.

Know your Institute

(a) Organization of the Institute, Departments various trades & functions

(a) Visit to the Institute.

Power Supply switchers, Fire extinguishers. First Aid Kit First Aid Chart Artificial Respiration Chart. Instrument boxes and Drawing materials.

What is Engineering Drawing? Importance, - free hand sketching of St. lines, rectangles square, circles, polygons etc.

Introduction to electricity supplies systems.

   

(b) Types of work, responsibility to be undertaken, incentives and future. Planning of profession.

(b) Introduction with the Principal & other teaching staffs.

 

 

 
   

(c) Safety precautions to be observed in the trade oath during ‘The oretical Periods’ and ‘Practical hours/ workshop hours’.

(c) Demonstration of various systems of the ‘Trade’ likes Radio, Tape, T.V. Controls etc.

     
   

(d) Elementary First Aid.

(d) Care & Safe working habits, safety precautions to be demonstrated to the trainees.

Student’s tool kits and workshop tools.

Free hand sketching of tools. Reading of simple drawings and concept of dimensions and dotted lines, chain line etc. Magnifying glass.

Properties and uses metals and non metals related to trade. Copper, Zinc, Tin. Aluminum, Brass, Bronze.

   

(e) Earthing types and importance.

(e) Elementary First Aid’ practice, ‘Artificial respiration’ practice.

     

2. & 3

Hand Tools

Identification, specifications, uses and maintenance of hand tools.

Demonstration & uses of trade hand tools-Screw-driver, plier etc. Simple mechanical fixtures, types of screws, bolts, washers, clamps, rivets, taps, connectors.

Simple fitting practice, fitting and drilling practice.simple threading practice

Simple sheet metal works.

Demonstration on Phenumatic screw driver.

     

4.

Introduction to Electricity

Matter, molecule atom, conductor, Insulator, Semi-conductor, Classifications. Voltage, current, resistance, Ohm’s Law, specific resistance & O.S.W.G.

Identification of conductors, Insulators, with specifications.

Use S.W.G. demonstration of different soldering iron. Practice of soldering & de-soldering. Practice of simple series and parallel ckts & mixed.

Verification of OHM’s Law.

S.W.G. Multimeter soldering iron.

Temp. controlled soldering station.

Reading of simple drawing, Free hand sketching of simple solids with dimension.

Solder Timber, Rubber Diff. Types of P.V.C. materials used in Electronic Industry.

5 & 6

Resistors

Classification of resistors with specifications & use. Construction of resistors, Colour Code. Kirchhoff'’ Law and its application. Explanation and only use of multimeter.

Identification of resistors. Colour code practice. Use of multimeter measurement of voltage, current and resistance. Experiments on P.T.C. resistors.

Experiment on N.T.C. resistors.

Experiment on Thermister resistors.

Experiment on V.D.R. resistors.

Experiment on L.D.R. resistors.

Tests on and use of classified resistors Carbon (Various W), W/W, Potentiometer Carbon Type (Log & Linear) Pre-set etc.

S.W.G. Multimeter soldering iron.

Lead acid battery, cells, Multimeter.

Free hand sketch of solids viewed perpendicularly to their surface and axes.

Use of diff. Sheets, ferrous and non ferrous. Decimals addition, subtraction, multiplication, division, conversion of decimals to common fractions and vice versa.

7.

Battery

Explanation of cells. Leclanches cell. Primary cells, Secondary cells, Battery construction – charging rate. Efficiency Amp.hr. capacity. Types of charging Silver oxide L.C.R. bottom cells. Alkali cells – construction-charging efficiency – use, advantages.

Testing of primary and secondary cells. Use of cells and battery in ckts.

Preparation of Electrolyte, Preparation of Charging by a charger.

Use of Sp. Gr. tube/ hydrometer.

Assorted cells and batteries Assorted rheostat, Hydrometer. Battery charger, Battery tester, Cells Testor.

Free hand sketches of nuts & bolts with dimensions from samples. Ckts and wiring diagram.

Reduction of common fraction to decimals fractions. Brief description of manufacturing process of Steel, Copper Aluminium.

8 & 9

Electro-Magnetism.

Explanation of magnetism. Classification of magnets and their materials. Properties of magnets. Uses and preparation of artificial magnets. Magnetic needle. Magnetic keepers. Explanation of Electro-magnetism. Properties advantages, disadvantages-application-types of cores. E.M. relays- types – uses. Concept of generators & motors only. Principle classification. To build up E.M.F. in a generator only starting of a D.C. motors only miniature motors.

Demonstration on the properties of P.M.

Use of magnetic needle.

Simple practice of converting a magnetic material into a magnet by a bar magnet.

Preparation of a solenoid. Use of magnetic needle.

Preparation of electro-magnets for a calling bell/ buzzer. Preparation of E.M. relay. Testing of types of relays.

Rewinding of E.M. relays & small repairs.

Building of E.M.F. in a Generator starting of a D.C. Shunt motors.

Smart assorted D.C. motors.

   

10 & 11

Alternating Current.

Explanation of A.C. Comparison with D.C. Expl. Of Induction & induced E.M.F. Faraday’s Law, Lenz’s Law A.C. Generator – Left hand and Right hand rules.

Instantaneous values R.M.S. values – Phase – cycle – Time period – frequency. Single phase motor. Three phase motor. Principle classification uses Fractional H.P. Motors … Capacitor motor.

Demonstration of A.C. & D.C. Demonstration on Induced E.M.F. Demonstration on L.H. & R.H. Rules. Demonstration on Instantaneous values and R.M.S. values. Demonstration on phase, cycle, ‘f’ Measurement A.C. voltages and current.

Oscilloscope A.C. Auto var. Models on L.H. & R.M. rules. Low frequency oscillator Multimeter ‘f’ – counter.

Expl. Of simple or thographic projection 3rd angle.

Meaning of tenacity elasticity malleability brittleness hardness compressibility and ductility with examples.

12.

Inductance

Define – Inductance. Explanation of Inductive reactance, - types specification. Behavior with A.C. Impedance.

Coil concept – power factor. Self & mutual induction co-efficient of coupling. Expl. Of Transformer-types-turns-ratio-uses-losses-efficiency.

Hysterisis & eddy current – types of cores to be used for L.F.H.F. & V.H.F. transformer.

Identification of assorted inductive reactances – checking, testing & rewinding upto a specification. Impedence & P.F. measurements.

Demonstration on self and mutual induction.

Identification of assorted transformers-testing and rewinding upto a specification.

Oscilloscope A.C. Auto Var Models on L.H. & R.H. rules. Low frequency oscillator. Multimeter 'f’ counter.

Assorted Inductive reactances. Assorted Transformers.

Expl. Of simple orthographic projection 3rd angle.

The weight of a body, Units of weights & shop problem percentage & its application. Shop problems.

13.

Capacitance.

Expl. Of capacitance & capacitive reactance. Classification of capacitors with specification Electrostatic action dielectric constants, materials used. Seris and parrallel connection Colour cores uses.

Identification and testing of difernet types capacitors. Colour code practice. Behavior of capacitor at different frequencies.

Bridges-RCL or Digital Multimeter. Power supply, Oscillator, E.V.M.

Expl. Of simple orthographic projection 3rd angle.

C.G.S.M.K.S. and their conversion problem.

14

Resonance

Expl. of resonance. Importance – equations Series and parallel resonance. Ckt. Elements – natural resonance, tuning, voltage gain Anti – resonance ckt. Of faster.

Uses in electronic ckts.

Determination of resonance. Characters for series and E.V.M. parallel.

Tuning to a given ‘f’.

Oscilloscope, signal generator E.V.M.

Simple iso-metric drawings, isometric views of simple objects such as square, cube rectangular blocks, Detailed diagram of Electro magnets.

Ratio and proportion shop problems, plotting and reading of simple graphs. Works unit of work, energy power.

15 to 16

Simple Analogue Meter

What is meter? Importance of meter. Classification of meter. Forces necessary to work a meter. M.C. Instruments. M.I. Instruments. Universal Instruments. Range Extension of meters. Need of calibration. Multimeter.

Characteristics of meters. Use of meters in different ckts use of Multi meters servicing , care and maintenance use of insulation meter

Demonstration on the function of M.C & M.I. meters.

Measurement of resistance, voltage, current frequency, etc. by Am-meter, Voltmeter, frequency meters. Expts on ‘range extension’ of meters. Use of multimeters

Servicing of multimeters.

Demonstration on calibration of Demonstration on insulation tester.

Assorted analogue meters. Multimeters. Models/Kits for assorted ckts. Shunt & series resistors. Standard meters.

Familiarising and sketching the details of components.

Applied problems. Algebraic symbols addition, subtraction, multiplication division. Standard algebraic formula (a+b)2, (a-b)2. Simple simultaneous equations with two unknown measuring of friction examples, meaning of C.G.

17.

Semi-Conductor

Define ‘Semi-conductor’

Intrinsic & Extrinsic semi-conductors.

Temperature co-efficients.

Definition of ‘P’ and ‘N’ types of semi conductor. Development of P.N. Junction – Barrier potential symbol.

Symbols as per B.I.S./ graphic.

Film on Semi-conductor. Film on P.N. Junction.

Demonstration on Barrier – potential for G & Si.

Video Films on Semi-conductor Video films on P.N. Junction Digital multimeter

Use of drawing instruments ‘T’ squares, drawing board construction of simple figures s. & solids with dimensions

Specification gravity Balancing examples.

18to 19

DIODE

Expl. of Diode Classifications of Diodes Characters of diodes. Varactor diode. Zener diode. Temperature effect. Diode as rectifier – Half wave – Fullwave Bridge.

Coding of Diodes. Study of the diode junction parameter.

Testing of a Diode. Characteristics of Diode. Characteristics of Zener-diode. Half wave rectifier ckt.

Full wave rectifier ckt.

Bridge rectifier ckt.

Multimeter E.V.M. Oscilloscope.

Use of different types of scales in inch & millimeters. Lettering numbers and alphabets.

Areas of rectangles, circles, regular, polygons. Calculation of areas, volume, weight of simple solids – cubes squares, hexagonal prisms shop problems.

20.

Filter Circuits

What is a filter circuit?

Types of Filter circuits.

Expl. of Xc, XL. Hipass, Low pass, Band pass filters.

Demonstration on various filter ckts. Assembly, testing & ‘L’ ‘T’ & PAI filters.

Demonstration on H.P., L.P. & B.P. filter circuits.

Multimeter oscilloscope.

 

Heat and temperature thermometric scales – Fahren-heit, centigrade and their conversion Kelvin Reamer Celsius.

21 to 23.

Transistor

Bi-polar junction Device.

Expl. of transistor Types of transistor.
Tests of transistor.

Symbol as per B.I.S. Biasing of Transistor & mode of application.

Arrangements of a transistor in a ckt. Conditions for the use of a transistor. Current flow in a transistor. ALPHA & BETA of a transistor. Thermal run way, Transistor CB, CC, CE amplification.

Identification and testing of a transistor. To study alpha & Beta of a transistor/ characteristics of a transistor (Static and Dynamic). To study the function of a transistor as an amplifier.

Multimeter milli-ammeter, micro-ammeter, milli-voltmeter. Transistor tests. Signal Generator Oscilloscope.

Drawing of various electrical ckts., with B.I.S. symbols of ckt. series and parallel ckt. power transformer instrument transformer etc.

Meaning of stress, strain modules of elasticity, ultimate strength B-11 curve.

24 to 26

Amplifier

Explanation of Amplifier. ‘f’ spectrum. Classification of Amplifiers. Class A.B.C. A-B.

A.F. amplifier Wave-length, propagation, Val. Of sound Hi-fi. R.F. amplifier. Voltage amplifier. Small signal. Large signal, Signal to noise ratio. Power amplifier-types Push-Pull, Complementary symmetry (transformeters out put).

Thermal stability and heat dissipation. Biasing and couplings Frequency compensation, pre-amplifier. Cascading of amplifiers. FC of amplifier. Vol. coape control, Bass control. Treble control and master control P.a. system.

Demonstration, assembly and testing of a transistor amplifier in Class A,B,C, P-P complementary symmetry modes.

Assembly, testing and frequency response of a single stage A.F. amplifier and R.F. amplifier. Assembly, testing and frequency response of a five stage amplifier with voltage amplifier and power amplifier. Study of P.C.B. of an amplifier. Fault location and servicing of a amplifier. Study of Vol. Tone, Bass, Treble and master control ckts.

Multimeter. D.C. Low voltage power supply. Signal generator. A.F. –do- R.F. HF oscilloscope output meter.

Free hand sketching of plan & elevation of simple objects – hexagonal bar, Sq. bar, circular bar, tapard bar, hollow bar etc.

Simple problems on Lines, angles, triangles and circles.