Automobile Engineering - May 2015
Mechanical Engineering (Semester 7)
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) Give the detail classification of automobiles.(7 marks) 1 (b) Explain the terms: Camber, Castor, and steering axis inclination. What are the effects of each on steering characteristics of a vehicle?(7 marks) 2 (a) Explain construction and working of differential unit with neat sketch.(7 marks)
Answer any two question from Q2 (b) or Q2 (c)
2 (b) Explain the working principal of two universal joints to obtain constant velocity.(7 marks) 2 (c) What is chassis? What are the components of a chassis? Indicate their functions.(7 marks)
Answer any two question from Q3 (a), (b) or Q3 (c), (d)
3 (a) Explain the effect of various factors on the performance of a tyre. In respect, justify the importance of tyre rotation.(7 marks) 3 (b) Write a short note on torque convertor and overdrive.(7 marks) 3 (c) With neat sketch explain construction and working of Master cylinder.(7 marks) 3 (d) Explain construction and working of telescopic type shock absorber.(7 marks)
Answer any two question from Q4 (a), (b) or Q4 (c), (d)
4 (a) State the functions of the following.
(1) Central Locking System (2) Vehicle Tracking System (3) Tachometer (4) Windscreen wiper (5) Direction Indicators(6) Hazard Flashes (7) safety belts.(7 marks) 4 (b) Discuss in detail the Ackermann steering mechanism.(7 marks) 4 (c) Classify automobile garages and explain the services carried out in a Garage.(7 marks) 4 (d) Explain anti-lock brake systems.(7 marks)
Answer any two question from Q5 (a), (b) or Q5 (c), (d)
5 (a) Write brief notes on Motor Vehicle Act.(7 marks) 5 (b) Explain Registration of Motor vehicles in detail.(7 marks) 5 (c) What are the advantages and disadvantages of Nitrogen gas in tyre.(7 marks) 5 (d) Explain the lighting circuit diagram of a car.(7 marks)