Wednesday, January 9, 2008

AUTOMOBILE ENGINEERING PAPER

DOWNLOAD MECHANICAL ENGINEERING PREVIOUS YEARS QUESTION PAPERS B.TECH PTU

AUTOMOBILE ENGINEERING ME 305 5th Sem May 2k5
Max Marks 60

Note: Section A is compulsory. Attempt any Four questions from Section B and any Two questions from section C.

Section A Marks: 2 each

1.
(a) State the functions of an automobile transmission system.
(b) List the defects in a simple single jet carburetor.
(c) What do you understand by crank case dilution?
(d) Cooling beyond optimum limits is not desirable. Why?
(e) What are the loads coming on a chassis frame?
(f) What are the various requirements of an automobile wheel?
(g) Why can’t you use wire wheel to mount tubeless tyre?
(h) Why is synchromesh device usually not employed for the reverse gear?
(i) How do you define the capacity of a storage battery and on what fators the capacity depends?
(j) What is the basis of defining brake efficiency?


Section B Marks: 5 each

2. With the help of sketch explain the construction and working of a.c. mechanical fuel pump.

3. Explain the various types of water cooling systems.

4. Explain in detail how specific gravity test and open volt test is performed on battery.

5. Discuss in detail the Ackermann steering mechanism.

6. In case of brakes, explain transfer of weight during application and discuss how it affects wheel skidding

Section C Marks: 10 each

7. (a) What is the function of anti-roll device in vehicles?
(b) Define the terms Camber and Castor.

8. Distinguish between ‘semi-floating’ and ‘fully floating’ rear axles with the aid of suitable sketches and explain their relative merits and demerits.

9. (a) Write short notes on shock absorber.
(b) List down some of the causes and remedies for vehicle pulls to one side.

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