Automobile Engineering - Dec 2013

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) Explain the principle of electronic ignition system.(5 marks) 1 (b) Describe the principle of operation of overdrive.(5 marks) 1 (c) Explain the principle of freewheel unit.(5 marks) 1 (d) Describe any one type of live axle.(5 marks) 2 (a) Describe the working of the multiplate dry friction clutches.(10 marks) 2 (b) Write about the necessity and describe the working of differential.(10 marks) 3 (a) Describe recirculating ball type of steering box. Also explain the function of the steering system.(10 marks) 3 (b) What is transfer box? Explain its construction and working.(10 marks) 4 (a) Explain the construction and working of McPherson strut type of suspension system.(10 marks) 4 (b) Explain the principle of operation and working of Shock absorber.(10 marks) 5 (a) Explain the working of the master cylinder. What is tandem master cylinder?(10 marks) 5 (b) Describe the working of a standard Bendix drive used in starter motor.(10 marks) 6 (a) With neat sketch explain working of constant mesh gear box (3 forward + 1 reverse speed )(10 marks) 6 (b) Describe any one engine sensor used in automobiles.(10 marks) 7 (a) Fluid Flywheel(5 marks) 7 (b) Types of stub axle(5 marks) 7 (c) Visibility and blind area(5 marks) 7 (d) Cutout relay(5 marks)