AUTOMOBILE TECHNOLOGY CLASS XI
COURSE OBJECTIVES After successfuly 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 Automobile Engineering, 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 the is able to understand the different vocational subjects,
(b) the basic concepts in engineering drawing
(c) The concepts, principles of working, constructional details, and functions of major components, assemblies, and sub-assemblies of automobiles, buses, trucks, motor cycles, and scooters.
(d) the proper method of using various tools and measuring equipment commonly used in garrage
(e) importance and procedurs of preventive, operating and break-down maintenance,
(f) preparing estimate of repair Jobs
(g) garrage procedure
(h) Major Vehicle Rules
(i) specifications of vehicles and their components.
B. Adequate professional Skill and competencies in: (a) use of hand tools, instruments, and garrage equipments,
(b) dismantling, repair and assembly of different components of vehicles.
(c) servicing and maintenance of vehicles,
(d) testing of sub-assemblices and vehicles - before as well as after repairs.
(e) organising and looking after a repair shop
(f) implementing of manufacturers repair and maintenance.
C. A healthy and professional attitude so that he has (a) an analytical approach while working on a vehicle, motor cycle or scooter.
(b) an open mind while locating/rectifying faults in vehicles, motor cycles or scooters.
(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
As per Academic Stream
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) - - - -
Technology
II. Auto Engineering 3 5 8 30 3 70 3 100
Ill. Auto Shop Repair 3 5 8 30 3 70 3 100
and Practice
5. Physical & Health - - 2 - - - - -
Education
Additional (optional) Papers
I. Applied Mechanic 3 2 5 60 3 40 3 100
II. Basic Electrical 2 3 5 60 3 40 3 100
Technology
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GENERAL FOUNDATION COURSE
3 Hours Class XI Marks: 100
(Syllabus contents of Part I and II are same as given in Electrical Technology Page No. 11)
ELECTIVE I
ENGINEERING SCIENCE
3 Hours Class XI Marks: 100
(Syllabus contents are same as given in Electrical Technology Page No. 13)
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ELECTIVE II
AUTO ENGINEERING
3 Hours Class XI Marks: 30
Theory
1. Introduction:
Introduction to Automobile, classification of vehicles on the basic of load, wheels, Final
drive, Fuel, axles, position of engine, transmission, body etc. 6
Layout of an automobile chassis, function of major components of vehicle and
introduction to their different system/utilisation such as frame, power plant,
transmission (clutch and gear box), final drive, braking system, front axle steering and
suspension system etc.
2. Power Plant:
Two stroke/Four stroke (comparison).
Types of automobile engines, working principles and construction details of petrol &
diesel engines, concept of engine terms, stroke, bore, compression ratio, clearance
volume, piston displacement etc. Valve timing Diagrams. 9
Lubrication system: Petrol Fuel line diagram, AC mech. pump, carburetror: types,
function and working principles of different circuits, air filter, fuel filters, diesel fuel
system, feed pump, fuel injection pump, injector, trouble shooting.
Cooling system: Types, water cooling-air cooling, water pump, pressure cap, radiator
trouble shooting.
3. Automobile Electrical System:
Wiring diagram of car, functions of various components used in electrical circuits of
automobile. Function & working principles of dynamo & sell starter. Alternator, three
unit regulator etc. Ignition, Sparkplugs-ranges, ignition timing, maintenence & charging
of batteries. 8
4. Transmission System:
Function & working of single & multiplates clutches used in Indian cars/Motor
Cycles/ Scooters etc. Clutch pedal/lever adjustment, function and working of a gear
constant Mesh & Synchromesh used in Indian scooters/trucks/cars etc. 7
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PRACTICAL
AUTO ENGINEERING 3 Hours Marks: 70
1. Identification and practice on usage of general tools and special tools for garages.
2. Chassis layout and identification of various components of Motor Cycle/Car/Truck.
3. Study of constructional details and working of petrol and diesel engines by using sectional models.
4. Flushing of water jackets, cleaning radiator and refitting.
5. Identification, function of each component and working of bush and bearing type water pumps by dismantling and assembling.
6. Identification, function of each component and working of A.C. fuel pump, by assembling and dismantling.
7. Clearing fuel lines, filters, tanks etc. and refitting. Identification, functions of various circuits in carburettor.
8. Identification, function of each component and working of lubricating system (oil pump etc.) adjustment of relief valve.
9. Identification, function of each component, and working of single plunger fuel injection pump.
10. Identification, function of each component, working, testing and adjustment of fuel injection pump (multi-cylinder engine).
11. Identification, function of each component working, testing, adjustment of fuel injector.
12. Identification, function of each component and working of various electrical circuits of vehicle.
13. Identification, function and working of self starter of car, truck by dismantling and assembling.
14. Identification, function and working of Dynamo by dismantling and assembling.
15. Identification, function and working of Regulator and its adjustments.
16. Identification, function of each component of battery ignition system of car-adjustment of CB. point gap, adjustment of ignition timing-advance and retard mechanism.
17. Identification, function of each component and working of single plate clutch assembly, adjustment of pedal play etc.
18. Identification, function and working of multiplate clutch Assembly by dismantling and assembling.
19. Identification, function of each component and working of gear box of scooter.
20. Identification, function of each component and working of gear box of car/truck.
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ELECTIVE III
AUTO SHOP REPAIR & PRACTICE
3 Hours Class XI Marks: 30
General layout of the shop-various sections in the shop. 7
Hand tools-use, specification and care.
Service Equipment used in servicing and overhauling.
Garage Equipment: 8
Construction working and application of air compressor- Hydraulic hoists, car washer, oil
pumps, Grease dispensers, tyre inflation Gauge, spark plug cleaner and tester. Preventive,
operative and breakdown maintenance schedules, wheel balancer (Dynamic), Brake tester.
Petrol, oil and lubricants used-specific trade brands.
Inspection of various components : factors involved in repair, reconditioning and replacement.
Importance of clearances, matching of components. 7
Garage Procedures: 8
Layout of garages,functions of garage personnel, safety procedures of garage/service stations.
Diagnostic sheet estimate of repairs, jobcards, jobloading, timebooking, inspection & final
reports, billing of repairs, waranty procedures.
PRACTICAL
AUTO SHOP REPAIR & PRACTICE 3 Hours Marks: 70
1. Dismantling, cleaning and assembling of petrol engine/diesel engine.
2. Overhauling of valve and valve operating mechanism, valve seat cutting, Grinding, Refacing, Lapping etc.
3. Overhauling of lubrication system of engine-oil pump, filters and passages etc.
4. Inspection of cylinder, piston and piston rings.
5. Inspection of crank shaft & cam shaft for bending and Twisting and rectifying other defects.
6. To find the taper and ovality of crank pin and decide its suitability for reconditioning/replacement.
7. Inspection of connecting rod with the help of connecting rod aligner.
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8. Inspection and refacing of cylinder Head and cylinder Block surfaces.
9. Setting of Tappet clearance.
10. Overhauling of A.C. fuel pump/ Electrical fuel pump.
11. Engine tuning.
12. Decarbonising of an engine with the help of de-carbonising kit.
13. Bleeding of fuel system of Diesel engine.
14. Mounting of fuel injection pump on the engine and setting of fuel injection timing.
15. Overhauling of single plate Dry clutch and adjustment of car/Truck;
16. Overhauling of Multiplate wet clutch of scooter/motor cycle.
17. Overhauling of gear box of a scooter.
18. Overhauling of gear box of Motor Cycle.
19. Overhauling of gear box of a car.
20. Overhauling of gear box of a Truck.
21. Overhauling of gear shifting mechanism of a car.
22. Over-hauling of gear shifting mechanism of a Truck.
23. Re-conditioning of Dynamo and its testing after reconditioning.
24. Study of alternators and general maintenance, care and adjustments, removing, checking, cleaning & fitting of alternators in the vehicles.
25. Reconditioning of self starter and its testing.
26. Re-building of Terminal post of Batteries and charging of batteries.
27. Fault diagnosis, trucking, rectification and final testing in respect of following:
(a) Petrol engine.
(b) Diesel engine.
(c) Fuel system-lubrication system and cooling system of an engine.
(d) Clutch Assembly.
(e) Gear Box.
Note: (Above jobs to be done on different Vehicles/components). No. of periods for each job to be decided by the teacher and jobs to be done on different vehicles.
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ADDITIONAL SUBJECT (OPTIONAL)
I. APPLIED MECHANICS Class XI
(Syllabus contents are same as given in Electrical Technology Page No. 21)
II. BASIC ELECTRICAL TECHNOLOGY
3 Hours Class XI Marks: 60
Basic Concept of Electricity:
Ohm's law, effect of temp. on resistance, electrical power, electrical energy, kirchoff's law,
related problems. 6
Electromagnetic Inductions:
Laws of electromagnetic induction, self inductance & self induced e.m.f. mutual inductance &
mutually, induced e.m.f., simple problems. 7
Fundamentals of A.C. & A.C. Circuits:
Concept of alternating voltage & current, cycle, frequency, period, instantaneoous value,
maximum value, average value & R.M.S. value. Concept of phase & phase difference, equation
of sinusodal wave from, A.C. applied to pure resistance, pure inductance & pure capcitance,
R. L. series circuit, power & power factor-simple problems. 7
3-Phase Supply System:
Star & Delta connections, relation between line voltage & phase voltage, line current & phase
current (No derivation) power in 3-Phase system. 7
Transformer:
Definition, construction & principle of working of single phase core type transformer, E.M.F.
equation' losses & efficiency. Auto transformer. Use of transformer in automobiles. 7
D.C. Motors:
Definition of motor & generator, Motor action, construction of d.c. motor, types of d.c.
motors, Back E.M.F. equation, use of lap winding, speed control of d.c. shunt motor by
armature & field control methods, applications. 7
A.C. Motors:
Types of 3-phase Induction motors - construction & principle of working. Slip, necessity of
starter, D.O.L. starter & Star-Delta starter, single phase capacitor motor, shaded pole motor,
applications. 6
Measuring Instruments:
Working principles & construction of Moving iron & moving coil instruments, difference
between voltmeter & ammeter, extension of range of instruments. Connection of voltmeter,
ammeter, wattmeter & energy meter in an electric circuit. 7
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Miscellaneous Topic: Single line diagram of power system. Importance of earthing, general safety precautions. Treatment of electric shock 6
PRACTICAL
BASIC ELECTRICAL TECHNOLOGY 3 Hours Marks: 40
1. Practical instructions regarding electrical safety precautions & study of electric shock treatment chart. Identification of electric wires & cables.
2. Starting of D.C. shunt motor with the help of starter.
3. Starting of 3-phase induction motor with D.O.L. starter.
4. Starting of 3-phase induction motor with Star-Delta starter.
5. Determination of efficiency of a single phase transformer by direct loading method.
6. Speed control of D.C. shunt motor by armature control method.
7. Speed control of D.C. shunt motor by field control method.
8. Torque speed characteristics of D.C. shunt motor.
9. Measurement of power & power factor of a single phase inductive load.
10. Trouble shooting of 3-phase induction motor.
11. Demonstration on armature winding of a dynamo.
12. Performance of short circuit test to find out full load copper losses of the given transformer.
13 to 15. Jobs on domestic wiring.
16. Internal test.
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