Showing posts with label Automobil Engineering lecture notes PPT. Show all posts
Showing posts with label Automobil Engineering lecture notes PPT. Show all posts

Tuesday, 4 April 2017

Automobile engineering question bank

This post covers the important questions of the subject ME6602 Automobile Engineering.This will help you to get more marks in university examinations.

ME 6602 Automobile Engineering

Unit -1 Vehicle Structure and Engines

Part-A

1. What is chassis and how it's design is related to vehicle aerodynamics?
2. List out the components of chassis.
3. What are the materials used in the construction of chassis frames?
4. What are the functions of frames in automobiles?
5. State the advantages of frame less construction.
6. What are the types of automobiles?
7. List the Importance of vehicle body design.
8. Mention any four requirements of the vehicle body.
9. Name the resistances to vehicle motion.
10. What is the purpose of flywheel in IC engine? Where is it located?
11. Define variable valve timing.
12. What are the advantages and applications of VVT?

Unit -1 Vehicle Structure and Engines
Part-B

1. Draw the layout of an automobile and indicate it's various components.
2. Draw the layout of conventional chassis with a neat diagram and explain about the various parts on it.
3. Explain the construction of various frames used in automobile with neat sketch.
4. Explain the various components of an engine with a neat sketch and also mention the engine parts, materials and methods of manufacture.
5. Explain in detail about various types of VVT diagram with advantages and disadvantages.
6. Write short notes on vehicle aerodynamics.


Unit-2 Engine Auxiliary System

Part- A

1. State the purpose of turbocharger.
2. What are the advantages and disadvantages of electronic control unit?
3. What do you understand monopoint and multi point injection system?
4. What is gasoline injection system?
5. State how turbo charging is different from super charging?
6. What is a catalytic converter?
7. What are the advantages and disadvantages of battery coil ignition system?
8. What are the advantages of CRDI?
9. What are the different types of electronically controlled diesel injection system?
10. What are the advantages of transistorized ignition system?

Unit-2 Engine Auxiliary System
Part-B

1. Explain with neat sketch explain about gasoline injection system for SI engines.
2. Explain the following.
(i) Transistorized coil ignition system
(ii) capacitive discharge ignition system
3. Explain about engine emission control by three way catalytic converter.
4. Write short notes on various types of electronically controlled diesel injection system.
5. Briefly explain the working of turbocharger with neat sketch.

Unit-3 Transmission systems

Part-A

1. What are the functions of clutch?
2. What are the various types of clutches used in automobile?
3. Mention any four requirements of a clutch.
4. Differentiate single plate and multi plate clutches.
5. What is the need of gearbox? Classify it.
6. Why synchroniser is required in the automotive transmission systems?
7. State the various functions of propeller shaft.
8. What is the use of slip joint in transmission systems?
9. What do you understand by hotchkiss drive?
10. What is the function of differential unit?
11. What is the function of fluid flywheel? What are the merits and demerits of it?
12. What are the advantages of constant  mesh gearbox over sliding mesh gearbox?

Unit-3 Transmission systems

Part-B

1. Discuss about the working of single plate clutch with advantages and disadvantages.
2. Explain the working of multi plate clutch with neat sketch.
3. Explain in detail about sliding mesh gearbox with neat sketch.
4. Explain in detail about constant mesh gearbox with neat sketch.
5. Explain in detail about synchromesh gearbox with neat sketch.
6. Write short notes on Hotchkiss drive and Torque tube drive.
7. Explain about fluid flywheel working with neat sketch.
8.Briefly explain about differential unit with eat sketches.


Thursday, 4 February 2016

Chassis,Frame and Body construction notes PDF/ PPT

This post covers the construction of chassis, frame and body of the vehicle which is the one of the contents of vehicle structure and engines of the subject Automobile Engineering.


Chassis


Click: Types of frame construction

Ø      To construct any automobile, chassis is the basic requirement.
Ø        French term
Ø        A vehicle without body is called “chassis”. (A carrying unit)
Ø       Back bone of the vehicle
Ø       The components of the vehicle such as power plant, transmission system, axles, wheels and tyres,  suspension, controlling systems such as braking, steering etc.,
Ø  Electrical system parts are mounted on the chassis frame.
Ø       It is the main mounting of all components including the body. So it is called “carrying unit.”

Main components of chassis

  ž  Frame
        ž  Front suspension
ž  Steering mechanism
ž  Engine, clutch and gearbox
ž  Radiator
ž  Propeller shaft
ž  Wheels
ž  Rear and front springs & Shock absorbers
ž  Differential unit
ž  Universal joint
ž  Braking systems
ž  Storage battery
ž  Fuel tank
ž  Electrical systems
ž  Silencer 





žCharacteristics of good Chassis

 Fast pickup
ž   Strength
ž  Safety
ž  Durability
ž  Dependability
ž  Ease of control
ž  Quietness
ž  Speed
ž  Power accessibility
ž  Economy of operation
ž  Low centre of gravity
ž  Stability
ž  Load clearance
ž  Braking ability
ž  Good springing
ž  Simplicity of lubrication 

 Layout of Chassis

ž                    ž  In this layout, the engine location is at the front end of the vehicle.

      The drive of the engine can be connected or disconnected fro the gear box by using clutch assembly.

 ž         The clutch pedal provided at the vicinity of the driver             facilitates to engage or disengage the clutch with gearbox whenever required.

 From gearbox, power is transmitted to the differential through a propeller shaft and universal joints and finally to the wheels via rear axles.

ž  The radiator is placed at the front side of an engine. 












Components and drive systems in chassis

Frame:
Ø                  Frame is the foundation for carrying the engine and body of the vehicle.

Ø                  The frames are made of box, tubular, channel or U-shaped section, welded or riveted together. 





Click video:Chassis frame construction 


Suspension system

Ø  To insulate the wheel and axles from the frame in order to avoid the transmission of road effects to passengers while travelling on uneven road.

Ø    To provide comfortable ride to passengers.

Ø    To avoid additional stresses in the motor car frame.








  Steering System

Ø       Enable the driver to accurately control the direction taken by the vehicle under all operating conditions.

Ø        The system must be light and easy to operate, free from shock and vibration as direct as possible.

Ø       The steering system also helps to convert the rotary motion of the driver’s steering wheel into the angular turning of the front wheels as well as to multiply the driver’s effort with the leverage or mechanical advantage of turning wheels.



 Braking system

Ø  A brake is a mechanical friction device that inhibits motion, slowing or stopping a moving object (vehicle) or preventing its motion.

Ø  The most vital factor in running and controlling the modern vehicle.

Ø  Most brakes commonly use friction between two surfaces which can be pressed together to convert the kinetic energy of the moving vehicle into heat.






























Click: Types of frame construction