Automobile Engineering - Jun 2014

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.

Attempt the following questions.

1 (a) Explain advantages and disadvantages of a passenger car with the engine mounted at the front and rear engine mounting with neat sketch.(7 marks) 1 (b) Describe the construction and working of wind screen wiper, Speedometer Odometer and Fuel Gauge(7 marks) 2 (a) Explain the working of multi plate clutch with neat sketch.(7 marks)

Answer any two question from Q2 (b) or Q2 (c)

2 (b) Explain construction and working of differential unit with neat sketch(7 marks) 2 (c) Write short note on non-slip type differential(7 marks)

Answer any two question from Q3 (a), (b) or Q3 (c), (d)

3 (a) Define (1) castor (2) camber (3) toe in and toe out State their effect on steering geometry with neat sketch.(7 marks) 3 (b) Describe the rack and pinion type steering gear box with neat sketch.(7 marks) 3 (c) Designate the tyre with example. Differentiate between tube and tubeless tyre.(7 marks) 3 (d) What are the difference between Hotchkiss and torque tube drive describe with the help a neat sketch.(7 marks)

Answer any two question from Q4 (a), (b) or Q4 (c), (d)

4 (a) Explain the working of constant mesh gear box with diagram.(7 marks) 4 (b) Explain the need of suspension system and state its objective.(7 marks) 4 (c) Give the classification of automobile brake. Explain with neat sketch the working of master cylinder used in hydraulic brake.(7 marks) 4 (d) State the function of battery and explain construction of automobile battery with sketch .(7 marks)

Answer any two question from Q5 (a), (b) or Q5 (c), (d)

5 (a) What are the different types of rear end suspension ? How does a rigid axle front end suspension differ from an independent front end suspension?(7 marks) 5 (b) Explain the typical lighting circuit diagram of a car(7 marks) 5 (c) Enlist the various types of tools and equipment required in service station.(7 marks) 5 (d) Write short note on Euro norms.(7 marks)