ELECTRONICS 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 skill and competence in the fields of Electronics 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, 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 of basic electronic devices and circuits.
d) the knowledge of testing procedure of components and circuits by making use of different test instruments.nts.
e) the procedure of making P.C.B.
f) the concepts and principles used in radio, audio, television and video systems.
B. adequate professional skills and competencies in:
a) testing different electronic components
b) testing the performance of electronic circuits
c) locating the fault at component level and at the stage level.
C. A healthy and professional attitude so that he has
(a) an analytical approach while working on a Job,
(a) a 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 2 3 5 50 3 50 3 100
Course
4. Vocational Elective Paper
I. Basic Electrical 3 5 8 40 3 3 100
Engineering
II. Component and 3 5 8 40 3 60 3 100
Measuring
Instruments
III. Electronic Devices 3 5 8 40 3 60 3 100
Circuits
5. Physical & Health 2
Education
Additional (optional) Papers
I. Applied Mechanics 3 2 5 60 3 40 3 100
II. Engg. Drawing - 5 5 - - 100 3 100
III. Chemistry (043) 6 2 8 70 3 30 3 100
As per Academic Stream
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GENERAL FOUNDATION COURSE
3 Hours class XI Marks: 100
Part I : (Compulsory to all vocational courses) Marks: 30
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 efficiency, 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
1. Percentage, ratio & proportion, profit & loss, discount, simple and compound
interest, population,growth and depreciation of value of articles, using logarithms,
2. Area and volume : rectangle, parallelogram, circle, cube, cone, cylinder & sphere.4
C. ENVIRONMENTAL EDUCATION & RURAL DEVELOPMENT (10 marks)
I. ENVIRONMENTAL EDUCATION 5
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.
II. RURAL DEVELOPMENT 5
a) Agriculture the back bone of Indian Economy.
b) Rural Development projects in Indian including Integrated Rural Development
Programme.
c) Agro based rural industries.
d) Community approach to Rural Development.
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PART II: WORKSHOP PRACTICE
1. Carpentry Shop Introduction of new materials, demonstration of different types of timbers, identification and salient features. Introduction of carpentry tools and their application; care, maintenance of tools and safety measures to be observed.
Exercise No. 1 Marking and sawing practice.
Exercise No. 2 Planning practice.
Exercise No. 3 Chiselling practice
Introduction to wooden joints, their relative, advantages and uses (demonstration)
Exercise No. 4 Preparation of mortise and tennon joint.
Exercise No. 5 Preparation of Dovetail joint and glued joint.
Exercise No. 6 Preparation of any two utility jobs such as simple bench, book rack, letter rack, towel stand, table diary stand, pelmets, name boards, bangle stand, side table, simple pattern. 6
2. Fitting Shop Introduction to fitting, working materials used in fitting shop, identification by demonstration of pieces of various ferrous and non-ferrous and non-ferrous metals. Filling practice, Hacksaw practice (Exercise No. 1) making of jobs, use of marking and measuring tools, Filing a dimensioned rectangular or square piece to an accuracy of + 0.25 mm (exercise No. 2) what is chipping, where chipping is done, description of chisels, hammers by demonstration chipping practice (Exercise No. 3). Description of drills, selection of drills for taping types of taps, tapping and drilling and tapping operations (Exercise No. 4)
Precautions while drilling soft metals, specially lead, marking centre punching and drilling practice on various materials used in Electronics field (exercise No. 5 & 6)Study, use, care and maintenance of callipers, steel rules, tri-squares, vernier, micrometer, combination set, height guage etc. Handling of measuring instruments, checking of zero error, finding least count etc. (Exercise No. 7) Practice of filling on non ferrous metals (Exercise No. 8) 8
3. Sheet Metal Shop: Introduction to tools and equipment used in sheet metal shop. Sheet guages, working properties (exercise No. 1) Demonstration and use of hand sheare (exercise No. 2) Developing and exercise or making a simple job (exercise No. 3) Preparation of sheet metal job involving shearing creasing bending and corner making etc. (Exercise No. 4) Preparation of 2 sheet metal job involving circle cutting, folding and bending (exercise No. 5) Preparation of a job involving flanging and soldering (Exercise No. 6) Preparation of one Utility article such as box, funnel and tray etc (exercise No.7) 9
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4. Painting and Electronplating Introduction to tools and equipment used in painting shop (Exercise No. 1) Various constituents of paints, demonstration. (Exercise No. 2). Surface preparation before painting, (Exercise No. 3). Introduction to spray painting equipment, procedure for spray painting a job (Exercise No. 4). Spray painting of a job from electronic fields (Exercise No. 5). Introduction to equipment used in electroplating shop. Precautions to be observed. (Exercise No. 6). Demonstration and practice in electroplating a job. Practice in electroplating jobs from electronics field. (Exercise No. 7). 9
5. Welding Shop Introduction to welding: its use in electronics field, types of welding, common materials that can be welded, introduction to gas welding equipment, adjustment of different types of flames. (Exercise No. 1). Preparation of job on gas welding equipment introduction of common welding joints in gas welding. Preparation of a butt joint on gas welding, (Exercise No. 2 & 3). Introduction to electric arc welding process, equipment, electrodes used, precautions to be observed while: welding a job. Preparation of a welding joint with electric are welding equipment. (Exercise No. 4 & 5). Practice on spot welding equipment. (Exercise No. 6) 9
6. Machine Shop Introduction to tathe, lathe tools precautions to be observed, demonstration of operations that can be performed on a lathe machine. Centreing job, simple turning on a centre Lathe. (Exercise No. 1) Preparation of cylinder job. (Exercise No.2). Preparation of stepped turning job (Exercise No. 3). Preparation of turning job with a drilled hole. (Exercise no. 4). Introduction to milling machine-demonstration of simple operations that can be performed on a milling machine. Preparation of simple job on milling machine. Die and punch work (Preparation of punch and corresponding die) press work (upto deep drawn job). 9
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ELECTIVE I
BASIC ELECTRICAL ENGINEERING
3 Hours Class XI Marks: 40
1. Basic Electricity: Concept of current, potential difference, resistance, power and energy
and their units. Ohm's Law, Resistivity, effect of temp, on resistance. Conversion of electrical
units into Mechanical and Thermal units. 2
2. D.C. Circuits: Series, parallel circuits. Kirchoff's Laws and their application. Star Delta
conversion. 3
3. Batteries: Construction of Lead Acid and Alkaline batteries. Their chemical action,
Methods of charging, efficiency, testing of battery. Idea of button cells. Series/parallel
grouping of cells. 3
4, Magnetic Circuits: Concept of MMF. Flux, Reluctance and premeability, Analogy
between Electrical and Mechanical Circuits, Simple problems of magnetic circuits. 2
5. Electromagnetism: Faradays's Laws of Electromagnetic Induction, self and mutually
induced EMF, Energy stored in a magnetic circuit. Hysteresis and eddy current loss and their
significance, concept, Force between two, parallel current carrying conductors and its
significance. Force experience by a current carrying conductor placed in a magnetic field and
its significance. 6
6. A.C. Fundamentals: Concept of alternating voltage and current, cycle, frequency, time
period amplitude, Average value and RMS valve, equation of sinusoidal Wave. 2
7. A.C. Circuits: Alternating voltage applied to Resistance, Inductance Capacitance, RL,
RC and RL series circuits. Parallel circuits; their phasor diagrams. Problems on series and
parallel A.C. circuits. Power and p.f. in A.C. Circuit. 6
8. Construction and working principle of moving iron and moving coil voltmeters and
ammeters, Dynamometer type wattmeter, Inductor type single phase energy meter, Ohm
meter, megger, earth tester and multimeter. 8
9. Introduction to 3 supply system, star connection and Delta connection, relation between,
line voltage and phase voltage, line current and phase current in star connection & Delta
connection. 8
PRACTICAL
BASIC ELECTRICAL ENGINEERING 3 Hours Marks: 60
1. To find for a filament lamp.
(a) Variation of Resistance with temperature.
(b) Variation of Resistance with voltage.
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(c) Variation. of power and voltage.
2. To-verify Kirchhoff's first law.
3. To verify Kirchhoff's second law.
4. To find the ratio of inductance values of a coil having air core and iron core.
5. To verify that in an A.C. circuit Vector sum (not algebric sum) of current at any junction is zero.
6. In an RLC circuit find the values of:
(a) Impedance. (b) Current. (c) Power. (d) Power factor. and compare the results with theoretical values.
7. Measurement of resistance by ammeter and, voltmeter method and ohmmeter.
8. Calibration of ammeter, voltmeter and wattmeter with the help of standard meters.
9. Calibration of single phase energy meter with the help of standard wattmeter and stop watch.
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ELECTIVE II
COMPONENTS AND MEASURING
INSTRUMENTS
3 Hours Class XI Marks: 40
Theory
I. Components (10 Marks)
(1) Resistors:
Carbon film, metal film, carbon composition, wire wound and variable types
(Present and potentiometer), their construction, important specifications and
applications.
(2) Capacitors:
Ceramic, paper, mica and electrolytic types, their construction, important
specifications and applications.
(3) Inductors:
Air cored, iron cored and ferrite cored, their important specifications and
applications.
(4) Printed circuits Boards:
Brief ideas of fabrication techniques and their applications.
II. Instruments (30 Marks)
(1) Ammeters and Voltmeters:
(a) Working principles and construction of moving coil and moving iron
galvanometers.
(b) Conversion of a galvanometer into an ammeter.
(c) Conversion of a galvanometer into a voltmeter.
(d) Simple numerical problems on the extension of range
(2) Wattmeter and Energy meter:
(a) Construction and working principle of dynamometer type of wattmeter.
(b) Construction and working principle of induction type of energy meter.
(3) Multimeter:
(a) Principles of measurement of DC voltage, DC current, AC voltage and
resistance in various ranges of a multimeter.
(b) Specifications of a multimeter and their significance.
(c) Limitations with ragard to frequency and impedance.