AE (Diploma Mechanical Engineering 6th)

1. Introduction (04 hrs)

1.1 Automobile and its development

1.2 Various types of automobiles manufactured in India.

1.3 Layout of chassis

2. Power System (06 hrs)

2.1 Fuel systems for petrol and diesel engines including multi point fuel

injection (MPFI), common rail direct injection (CRDI), Fuel injectors

and nozzles.

2.2 Comparison of MPFI with carburetor system.

2.3 Concept of double overhead cam, single overhead cam, Twin cam 16

valve technology in 4 cylinder engine.

3. Transmission System (08 hrs)

3.1 Clutch - Function, Constructional details of single plate and multiplate

friction clutches, Centrifugal and semi centrifugal clutch, Hydraulic

clutch

3.2 Gear Box - Function, Concept of sliding mesh, constant mesh and

synchromesh gear box, Torque converter and overdrive,

3.3 Types of drives – Front wheel, Rear wheel, Four Wheel.

3.4 Function of Propeller shaft, Universal joint, Differential and Different

types of Rear axles and Front Axles.

3.5 Wheels and Tyres - Types of wheels, Types and specifications of tyres

used in Indian vehicles, Wheel balancing

4. Steering System (08 hrs)

Function and principle of Ackerman and Davis steering mechanism, types of

steering gear boxes – Worm and nut, worm and wheel, worm and roller, rack

and opinion, Power steering system and alignment of wheels – Toe in, toe out,

camber, caster, kingpin inclination.

5. Braking system (06 hrs)

Constructional details and working of mechanical, hydraulic brake. Concept of

air and vacuum brake, brake adjustment, Introduction to Anti lock brake system

and its working.

6. Suspension System (08 hrs)

Function, Types, Working of coil spring, leaf spring. Concept of Air suspension

and Shock absorber.

7. Auto Electrical System: (08 hrs)

7.1 Constructional details of lead acid cell battery. Maintenance of batteries,

checking of batteries for voltage and specific gravity, Magnato and

Battery coil ignition system.

7.2 Concept of Dynamo

7.3 Alternator - Construction and working, Charging of battery by Alternator

and Regulator.