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Automobile Engineering : Question Paper May 2012 - Mechanical Engineering (Semester 8) | Mumbai University (MU)
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Automobile Engineering - May 2012

Mechanical Engineering (Semester 8)

TOTAL MARKS: 100
TOTAL TIME: 3 HOURS
(1) Question 1 is compulsory.
(2) Attempt any four from the remaining questions.
(3) Assume data wherever required.
(4) Figures to the right indicate full marks.
1(a) With the help of neat sketch,explain:
Scrub radius
Caster
Camber
Tow-in,Toe-out
Under steer and Over steer.
(10 marks)
1(b) Explain with neat sketch working of Vacuum-servo brakes.(10 marks) 2(a) Explain the various sources of vibration in vehicle and steps taken to minimize these vibration.What is its effect on a comforts human body?(10 marks) 2(b) Differentiate between Fluid fly wheel and Torque converter.(10 marks) 3(a) What are the different types Steering gears?What is the purpose of Steering gear?Explain with sketch re-circulating ball type of steering gear.(10 marks) 3(b) What is the necessity of gear box?Explain the working of constant mesh gear box.(10 marks) 4(a) Explain with sketch working of mac-person strut type independent suspension,with its advantages and disadvantages.(10 marks) 4(b) Explain with a sketch working of distributor less electronics ignition system(10 marks) 5(a) Explain with sketch the importance of driver seat.what are the basic parameters involved in design of driver's seat?(10 marks) 5(b) Discuss the overall criteria for vehicles comparison in the same category.(10 marks) 6(a) Explain in detailed the position and working of Sensors:
MAP
Lambda
SAW
(10 marks)
6(b) Explain in detailed the working of ECM in a vehicle.(10 marks)


Any four.

7(a) Write short notes on the following (Any four):
Comparison of semi-integral and integral structure.
(5 marks)
7(b) Leading shoe and trailing shoe.(5 marks) 7(c) Factors affecting tyre life(5 marks) 7(d) battery ratings(5 marks) 7(e) Visibility and blind area.(5 marks)

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