MU Mechanical Engineering (Semester 8)
Automobile Engineering
December 2014
Total marks: --
Total time: --
INSTRUCTIONS
(1) Assume appropriate data and state your reasons
(2) Marks are given to the right of every question
(3) Draw neat diagrams wherever necessary


1 (a) What are the function of final drive? Explain hotch kiss and torque tube drive with neat sketch.
10 M
1 (b) Define the following:-
(i) Camber (ii) Castor (iii) King pin inclination (iv) Toe-in Toe-out (v) Cornering power
10 M

2 (a) What are the requirements of a braking system? Compare drum and disc brakes. Name various component with sketch.
10 M
2 (b) Explain the working of an electronic ignition system and its advantages over conventional system.
10 M

3 (a) Discuss radial and cross ply tyres. Explain various factors affecting tyre life.
10 M
3 (b) What is the critical speed of a propeller shaft? Explain the significance. Also explain with neat sketch various joints used to connect propeller shaft to final drive.
10 M

4 (a) Compare rigid axle Suspension and independent Suspension. Explain with neat sketches. Also discus objects of Suspension.
10 M
4 (b) Suggest suitable suspension system for the following category of vehicles.
i) Passenger Car
ii) 50 Seater Luxury bus.
10 M

5 (a) Explain the working of Combined current and voltage Regulator.
10 M
5 (b) Explain various aerodynamic forces and moments acting on a vehicle while in motion. Also suggest suitable remedial measures to reduce the effect of these forces.
10 M

6 (a) What are open, semi integral vehicle structures? State their application and advantages.
10 M
6 (b) Describe Rack and pinion type of steering. Explain the requirement of steering
10 M

Write short notes on (any four)-
7 (a) Knock Sensor
5 M
7 (b) Oxygen Sensor
5 M
7 (c) Fluid Flywheel.
5 M
7 (d) Overall criterion for vehicle comparison
5 M
7 (e) Light weight materials for automotive application.
5 M



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