Rajasthan Technical University 2009 B.Tech Mechanical Engineering Automobile Engineering - Question Paper
Rajasthan tech. University
B.tech four sem (Main/back)
Year 2009
Automobile Engineering
Roll No.
Total No. of Questions: 5j [Total No. of Pages : 2
[2079]
B. Tech. IVtb Semester(Main/Back) Examination - 2009 Mechanical Engineering Automobile Engineering 4E2050
Time : 3 Hours Maximum Marks : 80
Instructions to Candidates:
Attempt overall Five Questions selecting one question from each unit. AH questions carry equal marks. (Schematic diagrams must be shown wherever necessary. Any data you feel missing may suitably be assumed and stated clearly. Units of quantities used'calculated must be stated clearly.)
1. a) Draw a neat sketch of an automobile chassis and discuss various loads on
its frame (8)
b) Describe fluid coupling and list its advantages and disadvantages. (8)
OR
tiy What are the functions and requirements of chassis, frame and bodies? (8) Discuss the principal of operation of a vacuum clutch. (8)
2. a) Describe the working of a synchromesh gear box with the help of a neat
sketch. Why is a synchroniser ring sometimes used in these gear boxes?(8) b) Describe the principle of a torque converter. Discuss its advantages and disadvantages. (8)
, OR
ay Explain the necessity of a differential in an automobile. Discuss in detail the 'construction and operation 9f the differencial. " (8)/
b) Describe clearly the constructional details and operation of various rear axle drives. Illustrate your answer with neat and simple sketches. (8)
3. a) What is Retreading of tyre? classify various types of tyre, also differentiate
between Radial and Biasply tyre. (8)
b) Explain the terms: camber, castor, steering axis inclination and toe-in. What are the effects of each on the steering characteristics of a vehicle? (8)
4E2050/4.000 (1) [Contd.~.
OR
What is the purpose of independent suspension? Explain various methods to achieve the same in front and rear axles of cars. (8)
Describe any type of mechanical brake with the help of neat sketches. (8) $
&
Describe briefly the construction of lead acid battery with a neat sketch.{8)
b)
Discuss the troubles commonly experienced in the lighting system of an automobile, suggest also suitable remedies. . (8)
Describe battery ignition system for a 4-strake 4 cylinder SI engine. ? (8) i Write short note on charging and testing of a lead acid battery. y (8)/
&
Sy/a) Describe the different components of an automobile air condition system.
What are the properties of good refrigeration oil? Why is R-12 used as the refrigerant in automotive air conditioners? (8)
b)
OR-
Write short notes on safety features in automobiles. (8)
4E2050
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Attachment: |
| Earning: Approval pending. |
