DRAFTS SYLLABUS FOR THE

TRADE OF ELECTRICIAN UNDER CTS

                                                             Week Number:1-26

Weekwise syllabus:- 1, 2, 35, 6, 7&8, 9, 10, 11&12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23&24, 25, 26

Week No.

Trade theory

Trade practical

Engineering drawing

Workshop calculation & science

1

Familiarisation with trade instructor, supervisor, foreman, principal.

Activities, of the institute, importance of the trade, future prospect etc. Duties and responsibilities of trainees, safety measures to be observed.

Elementary first aid. concept of standard and standardization.

Visit to the different sections of the institute.

Demonstration on elementary first aid. Artificial respiration.

   

2.

Matter, Atoms-structure, importance of physics-basic principles-work, power, energy .

Identification of trade, hand-tools – specifications and uses. Care and maintenance of hand tools.

 

 

 

Demonstration on trade hand tools. Identification of simple types-screws, nuts and bolts, chasis, clamps, rivets etc.

Freehand sketching of straight lines, rectangles, squares circle, polygons etc.

Electricity and its uses, electric current positive. Use of switchs and fuses. Conductors and insulators.

Applied workshop problems involving multiplication and division common fractions, add, subtract, multiplication and division. Application of friction to shop problems.

3

Fundamental of electricity electron theory- solar system-elements, free electrons- fundamental terms, definitions, units & effects of electric current.

practice in using steel rules, cutting pliers, screw drivers etc. skinning the cables, and joint practice on single strand.

Demonstration & practice on bare conductors such as- Britannia, straight, Tee, Western union.

Proportionate free hand sketching with dimensions.

 

 

 

Reading of simple blue prints

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Properties and uses of copper, zinc, lead, tin, aluminium, brass, bronze, solder, bearing metals, timber rubber.

5

Solders, flux and soldering technique. Resistors types of resistors & properties of resistors.

Practice in soldering

-Measurement of ‘R’ and measurement of specific ‘R’.

Conventional symbols of electrical installation

 

6

Expl. Definition and properties of conductors, insulators and semi-conductors.

Types of wires & cables standard wire gauge.

Classification of wires & cables-insulation and voltage grades

-Low, medium and high voltage

precautions in using various types of cables

Demonstration and identification of types of cables

 

Demonstration & practice on standard wire gauge

Safe use of cables and wires

 

As per I.S 732-1963-APP-D.

Practice in crimping Thimbles, lugs .

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Properties & uses of cast iron, wrought iron, plain carbon steel, high speed steel and alloy steel.

Decimals-add, subtraction, multiplication, conversion of decimals of to common fractions shop problems.

7 & 8

Common electrical accessories, their specifications, Common insulating material as per B.I.S.

Concept of ckts.-types of ckts as per property as per current flow

Ohm’s law, series and parallel ckts. Kirchhoff’s Law Reading of Analogy digital Ammeter and voltmeters only use-of protective devices of ckts-Fuses & their types Earthling etc.

-Simple problems on ckts.

-Conception of developments of domestic ckts, Alarm & a switch, A lamp, A fan with individual switches etc./Two way switch

Demonstration and practice on fixing common electrical accessories.

 

 

Building/Layout/assemble of small electrical ckts. with common electrical accessories-reading & ammeter voltmeters

-Verification &Ohm’s Law

-do- of series ckt.

-do- of parallel ckt

 

 

Practice in testing and connecting domestic appliances

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Brief description of manufacturing process of pig iron & cast iron.

 

 

Reduction of common fractions to decimal fractions shop problems.

ACHIEVEMENTS: The trainees should be able to make ckts with common electrical accessories with domestic electrical appliances for a specified voltage and current.

9

Chemicals effect of electric current-principles of electrolysis. Faraday’s Law of electrolysis. Electro- chemicals equivalents. Explanation of Anodes and cathodes.

Assembly of a Dry cell-Electrodes-Electrolytes.

Grouping of dry cells for a specified voltage and current.

Drawing the typical diagram of D-type cartridge fuse, H.R.C. type fuse

C.G.S. & F.P..S. systems of units of forces, weights etc. their conversion problems.

10

Rechargeable dry cell-description advantages and disadvantages

Care and maintenance of cells.

Grouping of cells of specified voltage and current. Lead acid cell-description methods of charging- precautions to be taken & testing equipment.

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Preparation of battery charging

-Testing of cells

Draw of the typical diagram of plug and socket out lets.

Graphical symbols used in electric technology, ckt. Elements.

Ratio & proportion shop problems plotting and reading of simple graphs.

Mensuration areas of rectangles squares, Triangles, circles, regular polygons etc. Calculation of areas.

11 & 12

Lead Acid cells general defects & remedies.

Nickel Alkale cell-description charging. Power & capacity of cells. Efficiency of cells.

Wheat stone bridge and its application.

-Charging of a lead acid call, filling of electrolytes – testing of charging checking of discharged and fully charged battery.

Simple isometric drawing, isometric views of simple objects – squares rectangles cubes. Rectangular blocks etc detailed diagram of calling bell electromagnet etc.

Algebra- algebraic symbols add, subtract multiplication & division of expression involving algebraic symbols. Simple equation & transpositions problems.

 

ACHIEVEMENTS:- TRAINEES SHOULD BE ABLE TO CARRY OUT THE NECESSARY STEPS FOR CHARGING ING SECONDRY BATTERIES INDIVIDUALLY.

13.

ALLIED TRADES

Marking use of chisel and hacksaw on flats, sheet metal filling practice, filling true to line

Introduction of fitting trade

safety precautions to be observed description of files hammers, chisel, hacksaw, frames & blades- their specification & grades. Care. Maintenance of steel rule try square and files.

Symbols indicating the method of operation of the instrument and accessories.

IS: 1248- 2968 /APP. A.A-6

Brief description of manufacturing process of steel copper and aluminum.

14

Drilling practice in hand drilling % power drilling machines. Grinding of drill bits.

Marking tools description & use. Types of drills description & drilling machines, proper use, care and maintenance.

Free hand sketching of nuts & bolts with dimensions from samples.

Metric systems metric weights & measurements units-conversion factors.

15

Practice in using tapes and dies, threading hexagonal and square nuts etc. cutting external threads on stud and on pipes riveting practice.

Description of taps and dies types in rivets and riveted joints. Use of thread gauge.

Free hand sketching of rivets and washer with dimensions from samples.

Meaning of tenacity elasticity, malleability and ductility examples.

16

Sawing and planning practice. Practice in using firemer chisel and preparing simple half lap joint.

Description of carpenter’s common hand tools such as saws planes, chisels mallet claw hammer, marking, dividing and holding tools their care and maintenance.

Free hand sketching of keys and screw threads with dimensions from samples.

Shop problems on metric system or weight and measurement.

17

Practice in using snips, marking and cutting of straight and curved pieces in sheet metals. Bending the edges of sheets metals. Reviting practice in sheet metal. Practice in marking different joints in sheet metal in soldering the joints.

Description of marking & cutting tools such as snibs shear punches and other tools like hammers, mallets etc. used by sheet metal workers. Types of soldering irons-their proper uses. Use of different bench tools used by sheet metal worker. Soldering materials, fluxes and process.

Explanation of simple orthographic projection 3rd angle.

Mass-unit of mass force, absolute unit of force. The weight of a body unit of weight shop problems.

ACHIEVEMENTS :

  1. The trainee should be able to mark according to the given sketch, to file thee given job with an accuracy of +/- 0.25 mm, be able to drill and tap hole.
  2. Should be able to use simple carpenter’s hand tools.
  3. Should be able to use simple sheet metal workers hand tools.

 

18

Define-magnetism &classification of magnets. Properties, care and maintenance, methods of magnetising magnetic material and Ferro magnetic substances.

Tracing the magnetic Field of a needle & bar magnet.

Practice in magnetising mg. Materials.

Draw the typical symbols used in electrical ckts.

Simple problems on work, power energy.

19

Principles of Electro-magnetism corkscrew rule, right and left hand rules. Mg. Field of current carrying conductors and loop. Earth magnetism, solenoid its property.

Magnetic terms

Principle of Electro-magnetic Induction, Faraday’s Law, Lenz’s law.

Tracing the magnetic field set up by a current carrying conductor and a loop.

Tracing the field of an Electro-magnet and study the variation of field strength by varying current number of turns etc.

Assembly/winding of a simple Electro magnet.

Graphical symbol used in electrotechnology, kinds of currents, distribution systems and methods of connections.

Standard algebraic formula (a+b)2 (a-b)2 Simultaneous equations with two unknown quantities.

20

Expl. types of resitsors used in electrical ckts. Factors controlling the ‘R’ of a material. Specific resistance variation of ‘R’ with change of temperature.

of a metal with the change of temperature.

  • Expl. to demonstrate variation of ‘R’ Concept development Expl. on specific resistance of a metal.
  • Connection of a calling bell.
  • Assembly of a calling bell/buzzer and rewinding of its Electro magnets.
  • Measure of ‘R’ by drop method.
  • Series & shunt ckts.-use of Ohm meter.

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Meaning of friction, Examples, meaning of C.G. Example specific gravity- Unit of work power and energy applied problems.

21

Principle of generator. Fleming’s right hand rules. Use of slip-ring & slit rings. Use of commutator.

Expl./Demonstration on Fleming’s rule

Sketching of brush and brush and gear of D.C. Panel board arrangement.

Simple problem on straight and bell cranked levers.

22

Principle of D.C. generator-function types-parts. E.M.F. equation-self excitation and separately excited Generators-practical uses. Use of Ohm meter and Megger.

Identification and testing of the parts of D.C. Generators.

-Demonstration and use of Ohm meter.

-Demonstration and use of Megger.

Lettering-Numbering Alphabets.

Calculation of volume and weight of simple solid bodies cubes squares and hexagonal prisms and shop problems.

23 &24

Types and characters of D.C. generators

-Series Generators and types

-Shunt Generators and types

-Their applications

-Simple problems on generator types, capacity etc.

-Practice indismantling the D.C. generators.

-Study of parts of the D.G. generators

-Voltage Building.

-Connection with panel Board

  • measurement of series. Shunt field resistance
  • -Identification of terminals of D.C. Generators
  • -testing by megger

Sketching of D.C. 3 point face plate starter to scale

Heat and temperature. Thermometric scales- centigrade. Fahrenheit scale and their conversion. Name and uses of temperature measuring instruments used in workshop

25

Define and expl. arm armature reaction, interpoles and their uses, connection of interpoles, commutation. Electromagnetic drag.

Fleming’s left hand rule .Principle of D.C. motor

  • connection of shunt generators, Measurement of voltage. No load & character.
  • -demonstration on field excitation
  • -load character of series Gen.
  • -connection of a compound Generator-Voltage measurement –commulative and differential – controlling and protecting equipment, No load & load ch. Of a compound Gen.
   

26

Terms used in D.C. motor Torque, speed , Back -e.m.f. etc. their relation practical application, Related problems

Demonstration and practice in identification and testing of D.C. motor parts & terminals. Running, speed control & reversing

 

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