Automobile Engineering

SATHYABAMA UNIVERSITY (Established under section 3 of UGC Act, 1956)

Course & Branch: B.E – Mechanical (Part Time) Title of the paper: Automobile Engineering Semester: V Max. Marks: 80 Sub.Code: 615PT502 Time: 3 Hours Date: 04-11-2008 Session: FN

PART – A (10 x 2 = 20) Answer All the Questions

1. State the safe level of pollutants for cars according to India 2000 norms. 2. Define the term ‘Engine Torque’. 3. List out the three advanced steering systems. 4. What is Torsion bar? 5. What are the functions of Transmission system? 6. Write short notes on four wheel drive. 7. What is locking of wheel during braking? 8. What is fuel cell? 9. Name various tests to check a fuel pump. 10. What is ‘Battery self – discharging’?

PART – B (5 x 12 = 60) Answer All the Questions

11. Explain briefly the various types of chassis construction with the help of suitable diagrams. Make a list of various components fixed of the chassis.

(or) 12. Enumerate the main parts of an automobile engine.

13. A) Discuss in detail the Ackermann steering mechanism. B) Write short notes on CASTER and CAMBER with suitable diagram.

(or) 14. Draw the schematic diagram showing the layout of an air suspension system and describe the same. 15. Explain the working principle of single plate clutch with the help of a neat sketch.

(or) 16. With the help of a neat diagram explain the construction of a propeller shaft. 17. Draw a simple diagram to show the layout of a hydraulically operated four wheel brake system and explain its working in detail.

(or) 18. (a) List out the advantages of CNG as an alternative fuel. (b) Write short notes on Hybrid vehicle. 19. Discuss the working of a simple single jet carburetor. Also discuss about various defects of it and remedies.

(or) 20. Explain briefly the working principle and functions of a Turbo charged engine.

Register Number

SATHYABAMA UNIVERSITY (Established under section 3 of UGC Act,1956)

Course & Branch :B.E - P-MECH Title of the Paper :Automobile Engineering Max. Marks :80 Sub. Code :615PT502 Time : 3 Hours Date :06/11/2009 Session :AN ______________________________________________________________________________________________________________________

PART - A (10 x 2 = 20) Answer ALL the Questions 1. List the types of common cylinder arrangements in automobile

engines. 2. Name the main sources of pollutants from gasoline engines.

3. What is wheel alignment? 4. State the requirements of a tyre. 5. State the purpose of clutch. 6. List different types of gear boxes. 7. Why are parking brakes always separate from the regular braking

system? 8. What is known as fuel cells? 9. What are the advantages of port fuel injection system? 10. What are the two types of refrigerants commonly used in

automobiles?


11. Explain briefly various parts of an automobile with the help of

simple sketch. (or)

12. Explain briefly the emission control approaches. 13. Explain the working principle of Steering linkages.

(or) 14. Describe the MacPherson strut assembly of independent

suspension system. 15. Explain the working of a diaphragm clutch. How does it differ

from a single plate clutch? (or)

16. Describe the working of the Epi-cyclic gear box and list its advantages.

17. With the help of a neat sketch explain the construction and

working of the disc brake. (or)

18. Write short notes on hybrid vehicle. 19. With neat sketch, explain the working principle of common rail

fuel injection system. (or)

20. Explain the principles and operation of air conditioning system.

SATHYABAMA UNIVERSITY CHENNAI – 600 119

DEPARTMENT OF MECHANICAL AND PRODUCTION ENGINEERING

25 16 7E5 - AUTOMOBILE ENGINEERING

UNIT – I VEHICLE STRUCTURE AND ENGINES

1. Explain the different types of chassis and frame used in the automobiles? (Refer R.K.Rajput, Page No: 405 - 415)

2. Explain the different parts of engine with neat sketch? (Refer R.K.Rajput, Page No: 23 - 45)

3. Describe the functions of the different parts of the engine? (Refer R.K.Rajput, Page No: 47)

4. Explain the various cooling system used in automobiles with neat sketch? (Refer R.K.Rajput, Page No: 384 - 398)

5. Explain the various types of Lubrication system used in automobiles with neat sketch? (Refer R.K.Rajput, Page No: 361 - 368)

6. Describe about Turbochargers and Super chargers? (Refer V.Ganesan, Page No: 705 & 719)

7. How to control the emission using three way catalytic converter in automobiles? (Refer V.Ganesan, Page No: 516 - 522)

8. Describe the Engine Management System (Refer V.Ganesan, Page No: 680)

UNIT-II STEERING AND SUSPENSION SYSTEMS

1. Explain the different types of wheels and tyres used in automobiles with neat sketch? (Refer R.K.Rajput, Page No: 439 - 450)

2. Describe about Steering Geometry with neat sketch? (Refer R.K.Rajput, Page No: 535 - 546)

3. Explain the different types of Steering gear box used in automobiles with neat sketch? (Refer R.K.Rajput, Page No: 531 - 535)

4. Describe about Power steering with neat sketch? (Refer R.K.Rajput, Page No: 546 - 550)

5. Explain the different types of Suspension used in automobiles with neat sketch? (Refer R.K.Rajput, Page No: 425 - 438)

UNIT-III TRANSMISSION SYSTEMS 1. Explain the different types of clutches used in automobiles with neat sketch?

(Refer R.K.Rajput, Page No: 464 - 473) 2. Explain the Manual Gear Box used in automobiles with neat sketch?

(Refer R.K.Rajput, Page No: 479 - 487) 3. Describe about Fluid Flywheel and Torque Converter?

(Refer R.K.Rajput, Page No: 474 - 477) 4. Describe about Propeller shaft and Slip Joint?

(Refer R.K.Rajput, Page No: 500 - 502)

5. Explain the working principle of Differential used in four wheelers? (Refer R.K.Rajput, Page No: 507 - 511)

6. Describe about Hotchkiss drive and Torque Tube drive? (Refer R.K.Rajput, Page No: 502 - 503)

UNIT - IV BRAKE SYSTEMS, ALTERNATIVE FULES & POWER PLANTS

1. Explain the different types of Braking system used in automobiles with neat

sketch? (Refer R.K.Rajput, Page No: 560 -575)

2. Describe about Antilock braking system with neat sketch? (Refer , Page No: )

3. Explain the trouble shooting in brake system? (Refer , Page No: )

4. Explain the following sources as alternate fuels for IC engines bringing out their merits and demerits?

a. Natural Gas (Refer V.Ganesan, Page No: 224 - 225) b. LPG (Refer V.Ganesan, Page No: 226 - 229) c. Biodiesel (Refer V.Ganesan, Page No: 212) d. Hydrogen (Refer V.Ganesan, Page No: 221)

5. Describe about Electric and Hybrid vehicle with neat sketch?

(Refer , Page No: ) 6. Describe about Fuel cells?

(Refer , Page No: )

UNIT-V ENGINE AUXILLARY SYSTEMS

1. Explain the Carburetor with different circuits used in the automobiles? (Refer V.Ganesan, Page No: 271 - 273)

2. Explain the Electronic fuel injection system used in the four wheelers? (Refer V.Ganesan, Page No: 329 - 336)

3. Describe about Monopoint and Multipoint fuel injection system? (Refer V.Ganesan, Page No: 336 - 341)

4. Explain the working principle of Lead Acid Battery? (Refer R.K.Rajput, Page No: 591 - 594)

5. Write notes on Maintenance of Lead Acid Battery? (Refer R.K.Rajput, Page No: 599)

6. Explain the working principle of Starting motor? (Refer R.K.Rajput, Page No: 608 - 611)

7. Explain the different types of starting drives used in automobiles? (Refer R.K.Rajput, Page No: 611 - 612)

8. Explain the different types of Ignition used in automobiles? (Refer R.K.Rajput, Page No: 626 - 636)

9. Explain the different Lighting used in automobiles? (Refer R.K.Rajput, Page No: 649 - 661)

10. Describe about Regulators and Cutouts? (Refer R.K.Rajput, Page No: 618 - 620)

Automobile Engineering Question Bank



25 16 7E5 - AUTOMOBILE ENGINEERING Part - A: Unit I: Vehicle Structure and Engines 1. What are the types of frame? 2. What is meant by integral frame? 3. What is firing order for 4 cylinder and 6 cylinder engines? 4. At what basis IC engines are classified? 5. Write the advantages of Gas turbine over an Engine? 6. What are the applications of an IC Engine? 7. What is the difference between pollution and emission? 8. What are the pollutants from an IC Engine? 9. What are the methods to control emission in the vehicles? 10. What is known as smog in an automobile? Unit II: Steering and Suspension Systems 1. What are the five important angles in steering? 2. What is a steering gear ratio? 3. What is the purpose of steering linkage? 4. Define Caster and camber? 5. What are plies in the tyre? 6. State three causes that reduce tyre life? 7. Why Kin pins are inclined? 8. What is pitching in the suspension system 9. What do you mean by Independent suspension? 10. What is a purpose of leaf spring in rear suspension? Unit- III: Transmission Systems 1. What is a transmission system? Name the units of transmission system? 2. What is a clutch? 3. What is the function of synchromesh gear box? 4. What is a transfer case? 5. Why is sliding mesh gearbox not preferred? 6. What is meant by semi floating and full floating rear axle? 7. What is the necessity of a propeller shaft? 8. What is a universal joint?


9. What is a purpose of slip joint in the drive line? 10. What is a differential? What happens when it is not working? Unit - IV Brake Systems, Alternative Fuels & Power Plants 1. What is the function of a braking system? 2. How many types of brakes are fitted in vehicle? 3. Why mechanical brakes used in parking? 4. What is the function of brake shoe? 5. What are power brakes? 6. What are the alternative fuels for I.C.engine? 7. State a difference between CNG fuel engine and gasoline engine 8. What are advantages of Biogas and Alcohol as a alternative fuel?’ 9. What is the specialization of bio gas? 10. What are advantages of LPG and CNG as a alternative fuel?’ Unit-V Engine Auxillary Systems 1. What is the purpose of carburetor? 2. What is the function of the fuel injection pump? 3. What is the difference between Mono and Multipoint injection? 4. What is capacity of a battery? 5. What is an electrolyte? 6. What is a function of a starting motor? 7. What is the purpose of an ignition system in a petrol engine? 8. What are the Four types of Fuel cell? 9. What are the components of AC system in vehicle? 10. What is meant by turbo charging super charging? Part - B:

Unit – I Vehicle Structure And Engines

1. Explain the different types of frame and chassis used in the automobiles? 2. Draw the layout of an automobile and list out the parts? 3. Explain the different parts of engine with neat sketch? 4. Explain the operation of 4-S and 2-S SI Engines? 5. Explain about different pollutants from an engine? 6. Explain different methods to control pollutants in an engine?


Unit-II Steering And Suspension Systems

1. Describe about Steering Geometry with neat sketch? 2. Explain the various components used in Steering system used in automobiles

with neat sketch? 3. Describe about Power steering with neat sketch? 4. Explain types of front axle and rear axle with neat sketch? 5. Explain the different types of wheels and tyres used in automobiles with neat

sketch? 6. Explain the different types of Suspension used in automobiles with neat

sketch? Unit-III Transmission Systems

1. Explain the different types of clutches used in automobiles with neat sketch? 2. Explain the Manual Gear Box used in automobiles with neat sketch? 3. Explain the Automatic Gear Box used in automobiles with neat sketch? 4. Describe about Propeller shaft and Slip Joint? 5. Explain the working principle of Differential used in four wheelers? 6. Describe about Hotchkiss drive and Torque Tube drive?

Unit - IV Brake Systems, Alternative Fules & Power Plants

1. Explain the Mechanical Braking system used in automobiles with neat sketch?

2. Describe about Hydraulic Braking system used in automobiles with neat sketch?

3. Explain the Pneumatic Braking system used in automobiles with neat sketch? 4. Explain the following sources as alternate fuels for IC engines bringing out

their Characteristics, merits and demerits? a. Natural Gas b. LPG

c. Biodiesel d. Hydrogen

5. Describe about Electric and Hybrid vehicle with neat sketch? 6. Describe about Fuel cells?

Unit-V Engine Auxillary Systems

1. Explain the Carburetor with different circuits used in the automobiles? 2. Explain the Electronic fuel injection system used in the four wheelers? 3. Explain the working principle of Lead Acid Battery and Starting Motor? 4. Explain the different types of Ignition used in automobiles? 5. Explain the different Lighting used in automobiles? 6. Explain the working principle of Air conditioning system in automobile?




25 16 7E5 - AUTOMOBILE ENGINEERING Short Questions: Unit I: Vehicle Structure and Engines 1. Define frame. 2. What do you mean by a chassis? 3. What are parts mounted in chassis? 4. What are the types of frame? 5. What is meant by integral frame? 6. At what basis IC engines are classified? 7. What are the applications of an IC Engine? 8. List out some main parts of an IC Engine. 9. What is the difference between pollution and emission? 10. What is meant by Bharat and Euro norms? 11. What are the pollutants from an IC Engine? 12. What are the methods to control emission in the vehicles? 13. What is known as smog in an automobile? 14. What are the methods to clean the exhaust gas? Unit II: Steering and Suspension Systems 1. What are the five important angles in steering? 2. What is a steering ratio? 3. What is the purpose of steering linkage? 4. Why are king pins inclined? 5. What do you mean by turning radius? 6. What are plies in the tyre? 7. State three causes that reduce tyre life? 8. What are types of front axle and rear axle? 9. What is pitching in the suspension system 10. What do you mean by Independent suspension? 11. What is a semi elliptic spring? 12. What is drop arm? 13. What is wishbone? 14. What is a purpose of leaf spring in rear suspension?


Unit- III: Transmission Systems 1. What is a transmission system? 2. Name the units of transmission system? 3. What is a clutch? 4. Why is free play provided in clutch? 5. What is clutch slippage? 6. What is the function of gear box? 7. What is a transfer case? 8. Why is sliding mesh gearbox not preferred? 9. What is meant by dead axle and live axle? 10. What is the necessity of a propeller shaft? 11. What is a universal joint? 12. What is a purpose of slip joint in the drive line? 13. What are the various universal joints in use? 14. What is a differential? What happens when it is not working? 15. What are the functions of a front axle? Unit - IV Brake Systems, Alternative Fuels & Power Plants 1. What is the function of a braking system? 2. How many types of brakes are fitted in vehicle? 3. What are the causes of poor braking? 4. What is the function of brake shoe? 5. What are power brakes? 6. What is the use of gasohol in automobiles? 7. What is the use of hydrogen in automobiles? 8. What is the use of Natural gas in automobiles? 9. What is the use of LPG in automobiles? 10. What is the use of Biogas in automobiles? 11. What is fuel sensitivity? 12. What are the alternative fuels for I.C.engine? 13. State a difference between CNG fuel engine and gasoline engine 14. What is the specialization of bio gas Unit-V Engine Auxillary Systems 1. What are the two main classes of carburetor? 2. What is the function of the fuel injection pump? 3. What are the functions of a governor in an injection pump? 4. What is the difference between Mono and Multipoint injection? 5. What is capacity of a battery? 6. What is an electrolyte? 7. What is a function of a starting motor? 8. For what purpose is the solenoid used in a starting circuit? 9. What is the purpose of an ignition system in a petrol engine?


10. Name the three principle components of a coil ignition system? 11. What is a hot and cold plug? 12. What are the components of AC system in vehicle? 13. What is meant by turbo charging? 14. What is meant by super charging? 10 marks Questions:

UNIT – I VEHICLE STRUCTURE AND ENGINES

1. Explain the different types of frame used in the automobiles? 2. Explain the different types of chassis used in the automobiles? 3. Explain the different parts of engine with neat sketch? 4. Describe the functions of the different parts of the engine? 5. How the IC Engines are classified? Explain? 6. List of various applications of an engine and explain? 7. Explain about different pollutants from an engine? 8. Explain different methods to control pollutants in an engine? 9. How to control the emission using three way catalytic converter in

automobiles?

UNIT-II STEERING AND SUSPENSION SYSTEMS

1. Describe about Steering Geometry with neat sketch? 2. Explain the different types of Steering gear box used in automobiles with neat

sketch? 3. Describe about Power steering with neat sketch? 4. Explain types of front axle and rear axle with neat sketch? 5. Explain the different types of wheels used in automobiles with neat sketch? 6. Explain the different types of types and their terms used in automobiles with

neat sketch? 7. Explain the different types of Suspension used in automobiles with neat

sketch? UNIT-III TRANSMISSION SYSTEMS

1. Explain the different types of clutches used in automobiles with neat sketch? 2. Explain the Manual Gear Box used in automobiles with neat sketch? 3. Explain the Automatic Gear Box used in automobiles with neat sketch? 4. Explain the Epicyclic Gear Box used in automobiles with neat sketch? 5. Describe about Fluid Flywheel and Torque Converter? 6. Describe about Propeller shaft and Slip Joint? 7. Explain the working principle of Differential used in four wheelers? 8. Describe about Hotchkiss drive and Torque Tube drive?


UNIT - IV BRAKE SYSTEMS, ALTERNATIVE FULES & POWER PLANTS

1. Explain the Mechanical Braking system used in automobiles with neat sketch?

2. Describe about Hydraulic Braking system used in automobiles with neat sketch?

3. Explain the Pneumatic Braking system used in automobiles with neat sketch? 4. Explain the trouble shooting in brake system? 5. Explain the following sources as alternate fuels for IC engines bringing out

their merits and demerits? a. Natural Gas b. LPG c. Biodiesel d. Hydrogen

6. Describe about Electric and Hybrid vehicle with neat sketch? 7. Describe about Fuel cells?

UNIT-V ENGINE AUXILLARY SYSTEMS

1. Explain the Carburetor with different circuits used in the automobiles? 2. Explain the Electronic fuel injection system used in the four wheelers? 3. Describe about Monopoint and Multipoint fuel injection system? 4. Explain the working principle of Lead Acid Battery? 5. Write notes on Maintenance of Lead Acid Battery? 6. Explain the working principle of Starting motor? 7. Explain the different types of Ignition used in automobiles? 8. Explain the different Lighting used in automobiles? 9. Explain the working principle of Air conditioning system in automobile? 10. Describe about turbo chargers and super chargers in automobile?

SATHYABAMA UNIVERSITY Title of the paper: Automobile Engineering Date: 03-04-2007 Session: FN

PART – A (10 x 2 = 20) Answer ALL the Questions 1. Differentiate between conventional frame and integral frame in automobile chassis

construction. 2. What are the materials suitable for cylinder head and liner? 3. What are the objectives of vehicle suspension? 4. Name the three types of springs that could be used for rear end suspension. 5. Describe the composition of the several materials used for clutch facings. 6. What is an over running clutch? Where it is used in an automobile? 7. State any two brake defects and suggest the remedies for them. 8. List the advantages of pneumatic brakes. 9. Give the electrical accessories used in automobiles. 10. State the limitations of a coil ignition system.


11. (a) Discuss the classification of different types of automobiles.

(5) (b) Explain fully the construction of a poppet valve? Discuss various valve actuating mechanisms that are in current use. (7) (or)

12. Mention three types of cylinder head that are commonly used with sketches, indicating the location of valves. Explain the main features of each type.

13. Sketch and explain any one power steering mechanism and discuss its merits.

(or) 14. What is meant by an independent suspension system? Describe the construction

details of one such system. 15. Draw a neat sketch of a clutch plate and name the various parts and briefly explain

their functions and use. (or)

16. Explain clearly the necessity of a transmission in a vehicle. Explain with the help of a neat sketch the working of a contestant mesh gear box.

17. What are the various kinds of power brakes? Discuss their merits and demerits.

(or) 18. Discuss how various defects are caused in the braking system of automobiles?

Suggest also suitable remedies. 19. With a neat sketch explain the lighting system of an automobile.

(or) 20. Explain with the help of suitable sketch, the working of a complete battery ignition

system.

SATHYABAMA UNIVERSITY

Title of the paper: Automobile Engineering Date: 20-09-2007 Session: FN


1. Define compression ratio. How does it affect the horse power of an IC engine? 2. What is the difference between a dry liner and wet liner? 3. What are the main differences in construction of full floating and semi floating rear

axles? 4. How over running clutch works? 5. Why is an idler gear used? Why four wheel drive is used in some vehicles? 6. What is tractive effort? Why four wheel drive is used in some vehicles? 7. List the name of the components of an Epi-cyclic gear box. 8. What is the significance of brake shoe clearance in a drum brake? 9. What is meant by air pollution? What are the pollutants emitted by an automobile? 10. What is the difference between a dynamo and an alternator?


11. (a) Describe with a diagram, the flow of power form engine to the wheels in a

commercial vehicle. (b) Brief the function of each component.

(or) 12. (a) Explain with suitable sketches the working of a four stroke diesel engine. (b) List the essential parts of a diesel engine with their function. 13. (a) Describe the construction and working of a front wheel independent suspension

system. (b) Analyze its merits and demerits with rigid axle conventional suspension system.

(or) 14. (a) Explain the various basic functions of the differential unit with a sketch. (b) Explain the difference in construction between Reverse Elliot and Elliot stub

axles. 15. Explain the construction of a single clutch disc with coil spring type pressure plate.

Describe the function of each part. (or)

16. With the help of a neat sketch, explain the construction and operation of a 3-speed constant –mesh gear box.

17. With a neat sketch, explain the construction of a tandem master cylinder and its operation in vacuum assisted hydraulic braking system.

(or) 18. (a) What is a Hybrid vehicle? (4)

(b) Describe the working of polymer electrolyte membrane fuel cell with a neat sketch. (8)

19. Sketch a simple carburetor, name its difference parts and explain their functions. (or)

20. Explain the working of a typical electronic ignition system with a circuit diagram.

SATHYABAMA UNIVERSITY Date: 13-03-2008


1. What are the functions of frames? 2. What happens if cylinder liner is (i) too loose and (ii) too tight? 3. What is the significance of torsion bar? 4. List out the amount of steering ratio provided in cars and heavy vehicles. 5. Compare fluid flywheel and toque converter. 6. What is the function of Hooke’s joint? 7. Write about a ‘leading shoe’. 8. What are the cause for long pedal travel of brake system? 9. What do you meant by Dual headlight system? 10. Name three types of car heaters.

PART – B (5 x 12 = 60)

Answer All the Questions 11. Explain briefly the various types of chassis construction with the help of suitable

diagrams. (or)

12. (a) Explain clearly various methods to improve engine performance. (10)

(b) What is pumping loss? (2) 13. Explain the construction and working of a telescopic type of shock absorber with the

help of a neat diagram. (or)

14. Explain the following (a) Caster angle (4) (b) Camber angle (4) (c) Toe-in (4) 15. (a) With the help of a neat sketch explain the principle of

Epicyclic gear box. (10) (b) What are the difference between centrifugal and semi-centrifugal clutches.

(2) (or)

16. Write short notes on (a) Hotchkiss drive (b) Torque tube drive 17. (a) Describe with neat diagram Hydraulic brake system. (10) (b) Compare mechanical brakes and Power brakes. (2)

(or)

18. (a) List out the merits of CNG as a alternate fuel for automobiles. (b) Write short notes on Fuel cells. 19. Draw the layout of the air conditioning system for a car and explain its working.

(or) 20. Describe briefly the electronic fuel injection system.

SATHYABAMA UNIVERSITY Date: 30-03-2009 Session: FN

PART – A (10 x 2 = 20) Answer ALL the Questions

1. What is the function of cylinder liners? 2. What are the different types of frames? 3. Explain the terms toe-in and toe-out. 4. Name the different types of stub axles. 5. What is the function of a clutch? 6. Justify the need for providing a differential for the vehicle. 7. What is the function of master cylinder in hydraulic brakes? 8. Write short notes on octane value. 9. What faults usually occur in a carburetor? 10. What is the purpose of a separator in battery?

PART – B (5 x 12 = 60)

Answer All the Questions 11. What is the function of a chassis and body of a car? What types of bodies are in use?

(or) 12. (a) Explain various devices on engine top control air pollution.

(b) How is pollution from engines measured with instrumentation? 13. Describe typical power steering system of cars. What is the importance of wheel

alignment? What safety features are in corporate in steering systems? (or)

14. Describe independent rear wheel suspension and its advantages. 15. With a suitable sketch, explain the working and performance of a multi plate clutch.

(or) 16. What are the different types of gearboxes? With the help of neat diagram explain the

construction and working of sliding mesh gearbox. 17. With a suitable sketch explain the principle and working of hydraulic brake.

(or) 18. Write short note on: (a) Hybrid vehicle (b) Alternate fuels. 19. Sketch a simple plain tube carburetor with idling system and acceleration system.

(or) 20. Describe with a neat sketch the starting device as used in any Indian make car.

SATHYABAMA UNIVERSITY Title of the paper: Automobile Engineering Date: 17-09-2008 Session: FN


1. What are the advantages of integral body construction over a conventional frame

body? 2. Write the significance of the performance curves of a SI Engine. 3. What are the functions of a slip joint and universal joints in a propeller shaft? 4. What are the benefits of using a turbo charger in a diesel engine? 5. What do you mean by wheel castor and camber? 6. List the various types of wheels. 7. List the advantages of using hydrogen as an alternate fuel. 8. What is over running clutch? 9. Name the components of an epicyclic gear box. 10. Differentiate mono point and multi point fuel injection system.


11. Explain the chassis layout of a 4X2 front engine, rear wheel drive vehicle with a sketch and write the functions of each component.

(or) 12. Explain the construction of a typical diesel engine, indicating the functions of various

parts. 13. List out the different types of independent front suspension system for a passenger

car and explain the construction and working of any one type. (or) 14. What are the different types of steering gears used in an automobile and explain with

a sketch the construction and working of re-circulating ball type steering gear. 15. (a) Explain Hotchkiss drive with a sketch. (b) With a neat sketch explain the working of a typical differential used in final

drive assembly. (or) 16. (a) Write the advantages of the fluid coupling over a conventional firctionalc

clutch (4) (b) Explain the construction of a fluid coupling with a neat sketch.

(8) 17. (a)What is the corrective action for brake gabbing complaint? (4) (b) Explain the construction and working of a vacuum assisted hydraulic

braking system. (8) (or)

18. (a) Briefly explain the working of a fuel cell. (4) (b) Describe the working of an electric hybrid vehicle with a sketch.

(8) 19. Describe with a neat sketch the electronic fuel injection system of a petrol car (or) 20. Describe the construction and working of a carburetor with a neat sketch.

Regular

SATHYABAMA UNIVERSITY (Established under section 3 of UGC Act, 1956)

Course & Branch: B.E .- Mechanical Title of the paper: Automobile Engineering Semester: VII Max. Marks: 80 Sub.Code: 15702(2002/2003/2004) Time: 3 Hours Date: 13-03-2008 Session: FN


1. What are the functions of frames? 2. What happens if cylinder liner is (i) too loose and (ii) too tight? 3. What is the significance of torsion bar? 4. List out the amount of steering ratio provided in cars and heavy vehicles. 5. Compare fluid flywheel and toque converter. 6. What is the function of Hooke’s joint? 7. Write about a ‘leading shoe’. 8. What are the cause for long pedal travel of brake system? 9. What do you meant by Dual headlight system? 10. Name three types of car heaters.

PART – B (5 x 12 = 60)

Answer All the Questions 11. Explain briefly the various types of chassis construction with the help of suitable diagrams.

(or) 12. (a) Explain clearly various methods to improve engine

performance. (10) (b) What is pumping loss? (2) 13. Explain the construction and working of a telescopic type of shock absorber with the help

of a neat diagram. (or)

14. Explain the following (a) Caster angle (4) (b) Camber angle (4) (c) Toe-in (4) 15. (a) With the help of a neat sketch explain the principle of

Epicyclic gear box. (10) (b) What are the difference between centrifugal and semi-centrifugal clutches.

(2) (or)

16. Write short notes on (a) Hotchkiss drive (b) Torque tube drive 17. (a) Describe with neat diagram Hydraulic brake system. (10) (b) Compare mechanical brakes and Power brakes. (2)

(or) 18. (a) List out the merits of CNG as a alternate fuel for automobiles. (b) Write short notes on Fuel cells.↓ 19. Draw the layout of the air conditioning system for a car and explain its working.

(or) 20. Describe briefly the electronic fuel injection system.

SATHYABAMA INSTITUTE OF SCIENCE AND TECHNOLOGY DEEMED UNIVERSITY

Course: B.E./B.Tech. Semester: VII Title of the paper: Automobile Engineering Max. Marks: 80 Sub. Code: 15702 (2001) Time: 3 Hours

PART – A (10 x 2 = 20)

Answer ALL the Questions 1. On what basis the automobiles are classified? 2. Name few engine trouble shooting & their remedies. 3. What is the purpose of steering linkage? 4. What is the purpose of the tie rod in the rear end suspension? 5. What is the object of the Clutch? 6. What is tractive effort? 7. Why is an internally expanding brake preferred in automobiles? 8. What is the principle of hybrid vehicle? 9. Explain the principle of electronic fuel injection system.

10. What are the major elements included in automobile air-conditioning?

PART – B (5 x 12 = 60) Answer ALL the Questions 11. Explain with neat sketches the different parts of the Chassis layout.

(or) 12. What are the different methods adopted to control pollution by exhaust emissions? 13. (a) What are three most common types of steering gears? What are the essential

differences between them? (b) Discuss the merits and demerits of an independent front suspension system.

(or) 14. (a) Explain with a neat sketch the working of a four wheel steering used in an automobile.

(b) Write briefly about “Rubber Suspension” employed in suspension system. 15. (a) Describe the sliding mesh gear box giving its necessary functions. (b) Explain the functions of propeller shafts and their types.

(or) 16. (a) Explain Hotch Kiss drive with neat sketch.

(b) Explain the functions of a differential with a neat sketch. 17. (a) Explain the function of a hydraulic brake system with neat sketch. (b) How do you adjust the brake? What are the various defects in braking system? 18. (a) Explain with neat sketch the working principle of electric hybrid vehicle. (b) Explain with neat sketch the working principle of fuel cell.

(or) 19. (a) With neat sketch explain the lightning system of an automobile.

(b) Describe the construction and working of any battery used in automobile.

20. (a) Explain with neat sketch the working principle of automobile air-conditioning.

(or)

(b) Explain with neat sketch the working principle of electronic fuel injection system.

Documents

Automobile Engineering