1. Introduction
Basic structure, general layout and type of automotive vehicles, Frameless and unitary
construction; position of power unit.
2. Power Unit
Power requirements - motion resistance and power loss, tractive effort and vehicle performance
curves; selection of power unit and engine performance characteristics; pollution due to vehicle
emission and exhaust emission control system, silencers, types of pistons and rings
3. Fuel Supply System
Air cleaner and fuel pumps; Air fuel requirements and carburation; constructional details of
Carter carburetors and fuel injection systems; MPFi (Petrol), Diesel fuel system - cleaning,
injection pump, injector and nozzles, Common Rail fuel supply system
4. Lubrication and Cooling Systems
Necessity of lubrication; Desirable properties of lubricants; various types of lubricants and oil
additives; different systems of lubrication - oil filters, oil pumps and oil pressure indicator; crank
case ventilation and dilution. Purpose of cooling, air and water cooling systems; radiator,
thermostat, pump and fan.
5. Chassis and Suspension
Loads on the frame, considerations of strength and stiffness, engine mounting, independent
suspension systems (Mac Pherson, Trailing Links, Wishbone), shock absorbers and stabilizers;
wheels and tyres, tyre wear types, constructional details of plies
6. Transmission system
Basic requirements and standard transmission systems; constructional features of automobile
clutch, gear box, differential, front and rear axles; overdrives, propeller shaft, universal joint and
torque tube drive; Rear wheel vs front wheel drive, principle of automatic transmission
7. Steering System
Requirement and steering geometry; castor action, camber and king pin angle, toe-in of front
wheels, steering linkages and steering gears; wheel alignment; power steering, Ball re-circulating
mechanism
8. Braking System
General braking requirements; Mechanical, hydraulic, vacuum power and servo brakes; Weight
transfer during braking and stopping distances
9. Electric System
Classification, Introduction to Conventional and transistorized ignition systems; Charging,
capacity ratings and battery testing; starter motor and drive arrangements: voltage and current
regulation
10. Maintenance
Preventive maintenance, trouble shooting and rectification in different systems; engine tuning
and servicing, major tools used for maintenance of automobiles