AE (B-TECH Mechanical Engineering 5th)

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