ELECTRICAL TECHNOLOGY CLASS XI
COURSE OBJECTIVES After successfully completing the two year + 2 stage Vocational Course the student would have acquired relevant appropriate and adequate technical knowledge together with professional skills and competencies in the field of Electrical Technology so that he is properly equipped to take up gainful employment in this vocation.
Thus he should have acquired:
A. Understanding of
(a) the relevant basic concepts and principles in basic science subjects (Physics, Chemistry and Mathematics) so that he is able to understand the different vocational subjects.
(b) the basic concepts in engineering drawing,
(c) the concepts, principles of working, maintenance, constructional details and functions of electrical motors, electrical appliances, measuring and testing instruments and electrical circuits.
(d) testing, installation, fault identification and repairing of electrical motors, appliances and instruments,
(e) different types of electrical wiring.
B. Adequate professional skills and competencies in
(a) testing, installation, commissioning, fault location, repairing, servicing and major repairs of electrical motors, appliances and instruments,
(b) undertaking complete house wiring jobs, testing, location of faults and repairing of house wiring.
C. A healthy and professional attitude so that he has (a) an analytical approach while working on a Job,
(b) an open mind while locating/rectifying faults,
(c) respect for working with his own hands,
(d) respect for honesty, punctuality and truthfulness.
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Scheme of Studies: Class XI
1 2 3 4 5
S. No. Subject Periods/ Week Examination Total
Theory Prac. Total Theory Prac. Marks
Marks: Hrs. Marks: Hrs.
1. Language I 7 - 7 100 3 - - 100
2. Language II or 7 - 7 100 3 - - 100
Mathematics (041)
As per Academic Stream
3. General Foundation 4 1 5 80 3 20 3 100
Course
4. Vocational Elective Papers
I. Engg. Science 1 7 8 70 3 30 3 100
a. Engg. Drawing (0) (4) - (40) - - -
b. Workshop (1) (3) - (30) - (30) (3) -
Technology
II. Basic Electricity 3 5 8 40 3 60 3 100
III. Electrical Applicances 3 5 8 40 3 60 3 100
5. Physical & Health - - 2 -- -
Education
Additional Subjects (optional)
I. Applied-Mechanics 3 2 5 60 3 40 3 100
II. Civil Engg. 3 2 5 60 3 40 3 100
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GENERAL FOUNDATION COURSE
(Common for Automobile, Structure & Fabrication and Airconditioning &
Refrigeration Technology)
3 Hours Class XI Marks: 100
Part I: (Compulsory to all vocational courses) 50 marks
A. BUSINESS MANAGEMENT AND ENTREPRENEURSHIP (30 marks)
1. Entrepreneurship Orientation 05
Importance and Relevance in real life: Emphasis on self employment.
2. Entrepreneurial values and Attitudes 05
Innovativeness, Independence, risk taking, analytical ability.
3. Entrepreneurial Motivation 05
Achievement planning, personal efficacy, Entrepreneurial goal setting.
4. Launching of a Business-Venture 15
Identification of project, steps in setting up a business, Information about various
institutions providing assistance.
Project Formulation.
B. COMPUTATIONAL SKILLS (10 marks)
1. Percentage, ratio & proportion, profit & loss, discount, simple and compound
interest, population growth and depreciation of value of articles using logarithms.6
2. Area and volume: rectangle, parallelogram, circle, cube, cone, cylinder & sphere.4
C. ENVIRONMENTAL EDUCATION (5 marks)
(a) Environment and the society.
(b) Environmental properties/risks in different economic enterprises: in use of
raw materials, in processing/manufacturing and designing.
(c) Poverty and Environment.
D. RURAL DEVELOPMENT (5 marks)
(a) Agriculture the back bone of Indian Economy.
(b) Rural development projects in India including Integrated rural development
programme.
(c) Agro based rural industries.
(d) Community approach to rural development.
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Part II: APPLIED PHYSICS Theory 30 marks
1. Units & Dimensions: M. K. S. Fundamental & Derived units, S. I. base units, supplementary units and Derived units. Dimensions of various physical quantities, uses of Dimensional analysis. 6
2. Surface Tension and Viscosity: Molecular forces, Molecular theory of surface tension, surface energy, capillary action, concept of viscosity, coefficient of viscosity, principle and construction of viscometers. 5
3. Vibrations : Vibration of simple spring mass system, elementary and qualitative concept of free and forced vibrations, resonance, Effects of vibrations on building, bridges and machine members. 5
4. Heat: Temperature and its measurement, thermoelectric, platinum resistance thermometers and Pyrometers. Conduction through compound media and laws of Radiations. 5
5. Ultrasonics: Production of Ultrasonic waves by magnetostriction, and piezo-electric effect, application of ultrasonics in industry. 5
6. Optics: Nature of light, reflection and refraction of a wave from a plane surface. Overhead projector and Epidia scope 4
PRACTICAL
APPLIED PHYSICS 3 Hours Marks: 20
1. To determine the surface tension of a liquid by rise in capillary.
2. To determine the viscosity of a given liquid
3. To determine the frequency of tuning fork using a sonometer.
4. To determine the frequency of AC main using sonometer.
5. Time-period of a cantilever.
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ELECTIVE I
ENGINEERING SCIENCE
(Common for Automobile Tech., Structure & Fabrication and Airconditioning &
Refrigeration)
3 Hours Class XI Marks: 70
A. ENGINEERING DRAWING (40 marks)
Drawing, characteristics and types, Drawing instruments, their use and care. IS
specifications. Layout and fixing of drawing sheets according to ISI. Free hand sketching
and lettering of various sizes and types. 4
1. Conventions & Symbols and Materials: 4
Convention of lines, types, centre of focus line, various types of lines and their use.
Conventions for materials.
Civil Engineering Sanitary fitting symbols.
Electrical fittings symbols and domestic installations.
Building plan drawing with electrical and civil Engineering symbols.
2. Lettering Techniques and Practice: 4
Requirements of good lettering. Freehand printing and numericals in 3, 5, 8 and 12
mm sizes vertical and inclined at 75 degrees, General composition of alphabets.
Instrumental lettering in single and double stroke in 12 mm.
3. Dimensioning Techniques: 4
Necessity of techniques, methods and principles, dimensioning of chamfered
portions, hatched figures, countersunk holes, irregular figures, scales.
4. Principles of Projections - I 5
Third angle projections - principles of orthographic projections.
Three views of given object.
Six views.
Exercise in auxiliary views.
Centre Line and extension lines.
5. Sections: 4
Importance, methods of representing, conventional sections of various materials,
classification of sections, conventions.
6. Pictorial and Isometric Views: 5
Isometric axis, oblique drawing axonometric views.
Pictoral view from two or three views.
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Isometric view (introduction) and exercise.
Conical projections.
Tracing, blue printing and ammonia printing.
7. Working Drawing/Details and Assembly 5
Principle of detailed and assembly drawings.
Detailed working drawing by actual measurement of a job already prepared.
Practical exercise in drawing from detailed assembly and vice versa using actual job
prepared in workshop.
8. Rivets, Riveted Joints and Welded Joints: 5
Nuts and bolts, proportioning and views.
Types of rivet heads, riveted joints, spigot and socket joints.
Welded joints, IS welding symbols, butt joints, lap joints, comer joints, T-Joints,
B. WORKSHOP TECHNOLOGY (30 marks)
1. Pipes and Pipe Fittings: Classification of pipes according to their material and use.
ISI specifications of pipes. Various types of pipe fittings and their application. Pipe
Vice, Pipe threads and thread cutting. 9
2. Metal Sawing: Power Hack Saw and Band Saw, their applications, specifications of
blades used in above machines. 6
3. Drilling: Introduction, types of drills, portable and bench type drilling machines,
drilling speed and feeds; Drill, Chucks and other accessories used in drilling
machines. 7
4. Soldering & Brazing: General characteristics of soldering, brazing joints, Processes
and their characteristics. Brief description of soldering and brazing tools
equipment. Types of solders and fluxes and their uses. Soldering defects and their
remedies. Brazing materials. Advantages and disadvantages of soldering &
brazing. 8
PRACTICAL
WORKSHOP TECHNOLOGY
3 Hours Marks: 30
1. Carpentary Shop: Identification of wood, introduction of tools, safety precautions.
Practical exercises involving practice of sawing, planning, chiselling, joining various
joints. To make some utility jobs such as brackets, office tray. 7
2. Fitting Shop: Introduction to tools and measuring instruments, their safe keeping, safety
precautions, practical exercises involving sawing, filing, marking, squareness, 8
chipping.
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Description of work bench, work holding devices, rare and maintenance of various tools
used in fitting.
Fitting Practice, checking by straight edge and tri square.
Specifications of files, Precautions while filing.
Jobs on Drilling and Tapping.
3. Forging Shop: Introduction and demonstration of tools, equipment and operations used
in smithy and forging. 8
Upsetting operation, production of a blank for a bolt from a round bar.
Excercise on drawing down operation.
Excercise involving use of Power Hammer.
Excercise in the making of D.E. Spanner/ Hook.
4. Sheet Metal Shop: Description of tools and operations involved in sheet metal
fabrication such as shearing, bending, joining (locked groves joint, Riveting, soldering
Brazing) Exercise like tray, Mug, Funnel etc. 7
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ELECTIVE II
BASIC ELECTRICITY 3 Hours Class XI Marks: 40
1. Current Electricity: Electricity as a source of energy. Definition of Resistance, Voltage, Current, Power, Energy and their units. Relation between electrical, mechanical and thermal units. Factors affecting resistance of a conductor, temperature co-efficient of resistance. Difference between AC and DC voltage and current. 3
2. D.C. Circuits: Ohm's Law, Series-parallel resistance circuits, calculation of equivalent - resistance. Kirchoff's Laws and their applications. 4
3. Electric Cells: Primary cell, wet cell, dry cell, battery, series and parallel connections of cells. Secondary cells, Lead Acid Cell, discharging and recharging of cells, common charging methods, preparation of electrolyte, care and maintenance of secondary cells.4
4. Heating and Lighting Effects of Current: Joule's Laws of electric heating and its domestic applications, heating efficiency, lighting effect of electric current, filaments used in lamps, and gaseous discharge lamps, their working and applications. 4
5. Capacitors: Capacitor and its capacity. Concept of charging and discharging of capacitors. Types of capacitors and their use in circuits. Series and parallel connection of capacitors. Energy stored in a capacitor. 3
6. Electromagnetic Effects: Permanent magnets and Electromagnets, their construction and use. Polarities of an electromagnet and rules for finding them. Faraday's Laws of Electromagnetic Induction, Dynamically induced e.m.f., its magnitude and direction. Static induction, self-induced e.m.f., its magnitude and direction, inductance and its unit. Mutually induced e.m.f., its magnitude and direction. Energy stored in an inductance.