Thursday, July 30, 2015

Anna University AT6402-AUTOMOBILE CHASSIS 2015 Question Paper

Anna University Previous Years Question Papers
Question paper code: 77030
B.E, B.TECH DEGREE EXAMINATION,APRIL/MAY-2015
Fourth semester
Automobile Engineering
AT6402-AUTOMOBILE CHASSIS
(Regulation 2013)
Time- Three hour
Maximum mark-100
Answer all questions
PART A-10X2=20
1. What are the various forces and moment that act on a vehicle frame?

2. Define chamber and caster with sketches.

3. What are the advantages of radial ply tyres?

4. Why are universal joints required on propeller shaft?

5. What are the various loads that act on drive axle?

6. What are the purpose of differential in a vehicle?

7. What are the function of the suspension system?

8. List out the advantages of independent suspension system?

9. Differentiate drum and disc brakes.

10. What is the function of master cylinder in a braking system?

PART B-5X16=80MARKS

11.(a)(i)Sketch and explain Ackermann steering mechanisms.
(ii) List out various type of steering gear boxes. Explain the constriction and operation of any two of them with relevance sketches?

(or)

(b)(i)Sketch and explain the layout of a rear derive car .What are the advantages and limitation of the layout?
(ii) Briefly explain various tests being carrier out on a vehicle frame?

12.(a)(i)Explain the sketch both Hotchkiss and torque tube drive mechanisms.
(ii)Illustrate the function of final derive with a sketch.

(or)

(b)(i)What is meant by constant velocity joint? Illustrate it usages in a vehicle.
(ii)What is a non-slip differential? Explain the principle and operation of a non-slip differential with a sketch?

13.(a)(i)List out the function of rear axle housing.
(ii)Explain the construction of full-floating and semi-floating rear axles with sketches.

(or)

(b)(i)What are the different types of wheel? Discuss their relative merits.
(ii)Explain the constructional details of a cross ply type with a neat sectional view.

14.(a)(i)Distinguish between independent suspension and conventional rigid axle suspension.
(ii)Describe the construction and working of a telescopic shock absorber with a sketch.

(or)

(b)(i) What is meant by anti lock braking system? How does it work?
(ii)With a neat sketch explain the construction and operation of the hydraulic brake system?

(or)

(b)(i) With a neat sketch explain the construction and function of a simple wheel cylinder.
(ii)With a neat sketch explain the construction and operation of the air brake system.

Duraimani

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