B12501 Automobile Chassis & Transmission DAE Question Paper Model : psgpolytech.ac.in

College : PSG Polytechnic College
Degree :DAE (Diploma in Automobile Engineering)
Semester : V Sem
Year : III Year
Subject : B12501 Automobile Chassis & Transmission
Document Type : Model Question Paper
Website : psgpolytech.ac.in

Download Model/ Sample Question Papers : https://www.pdfquestion.in/uploads/psgpolytech.ac.in/6237-B12501.pdf

PSG Automobile Chassis Question Paper

PSG POLYTECHNIC COLLEGE, COIMBATORE – 641 004
DIPLOMA ODD SEMESTER EXAMINATIONS – NOV 2014
Instructions :

Related : PSG Polytechnic College B12403 Production Technology DAE Question Paper Model : www.pdfquestion.in/6219.html

1. Group A and Group B questions should be answered in the Main Answer book.
2. Answer any TEN questions in Group A. Each question carries three marks.
3. Answer ALL questions either (a) subdivision or (b) subdivision in Group B. Each question carries 14marks.
B12501 Automobile Chassis & Transmission
MODEL QUESTION PAPER
Time : 3 Hours Max.Marks: 100
Group – A Marks : 10 x 3 =30
1. Draw the layout of transmission system.
2. What is sub frame- Write their advantages.
3. List the requirements of clutch.
4. Mention the purpose of gear box and write their types.
5. What are the various resistance offered to the motion of the vehicle-
6. What are the functions of universal joint and slip joint-
7. What is final drive- List the types of gears used in final drive.
8. Explain the semi floating type rear axle support.
9. What are the types of stub axle-
10. Explain Ackerman steering principle.

11. Draw a simple sketch of leaf spring.
12. What is meant by rigid suspension and independent suspension-
13. Compare drum brake and disc brake.
14. Write short notes on wheel cylinder.
15. Write short notes on antilock braking system.

Group– B Marks : 5 x 14 =70
16. a) What are the loads acting on the frame? Explain the construction of frame with simple sketch.
(OR)
b) Describe the construction and working of multi plate clutch with a neat sketch.
17. a) Explain the construction and working of synchromesh gear box with a neat sketch.
(OR)
b) Explain the construction and working of transfer case with neat sketches.

18. a) What is the necessity of differential unit? Explain its construction and working with neat sketch.
(OR)
b) Explain the Hotchkiss drive and Torque tube drive with neat sketches.
19. a) Describe the construction and working of re circulating ball type steering gear box with a
sketch.
(OR)
b) Explain the Wishbone type and Mac Pherson strut type suspension with simple sketches.

20. a) Draw the layout of air brake system and explain its main units in detail.
(OR)
b) Explain the construction and working of tandem master cylinder with a neat sketch.

Automobile Engines Question Paper :
Time : 3 Hours
Max.Marks : 100
Group – A Marks : 10 x 3 = 30
1. State the functions of oil pan.
2. Compare dry liner and wet liner.
3. Write the functions of crankshaft and cam shaft.

4. Define detonation.
5. What is pre-ignition-
6. What is cetane number-

7. State the necessities for cooling of an engine.
8. Mention the advantages of using pressure cap on the radiator filler neck.
9. List the properties needed for lubricating oil.

10. Draw a simple layout for fuel feed system in petrol engine.
11. What are the functions of carburetor-
12. Mention the advantages of port injection in SI engine.

13. What is CRDI- Write its advantages.
14. List the functions of injector.
15. What are the purposes of governors used in diesel engines-

Group– B Marks : 5 x 14 = 70
16. a) Describe clearly the functions and constructions of crankshaft and connecting rod with neat sketches.
(OR)
b) With the help of a neat sketch, explain the constructional features and working of side valve mechanism.

17. a) Describe the features of any two shapes of combustion chambers for petrol engines with the help of neat sketches.
(OR)
b) Explain the stages of combustion in diesel engine with the help of a neat graph.

18. a) What is the necessity of using thermostat in the engine? Describe the construction and working of wax type thermostat with the help of simple sketch.