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Reg No.:_ Name:

APJ ABDUL KALAM TECHNOLOGICAL UNIVERSITY
SEVENTH SEMESTER B.TECH DEGREE EXAMINATION(S), MAY 2019

Course Code: ME463
Course Name: Automobile Engineering
Max. Marks: 100 Duration: 3 Hours
PARTA
Answer any three full questions, each carries 10 marks. Marks

1 ஐ Distinguish between supercharged engine and turbocharged engines with neat (6)

sketches.
b) What is turbo lag, how can turbo lag be reduced in turbo charged engines? (4)
2 ஐ) List out the functions of the following IC engine parts (6)

(i) Piston (ii) Piston ring (ili) Flywheel (iv) Connecting rod (൦ Crankshaft
(vi) Camshaft
0) What is the purpose of front wing and rear wing in F1 racing car? (4)
3 ஐ List out the factors affecting the maximum torque transmitting capacity of a (4)
friction clutch.
b) With the help of a neat sketch explain the working of an overdrive unit used in (6)
automobiles.
4 a) Explain the working of synchromesh gear box engaged in any gear using a neat (6)
diagram.
b) List out the different resistive forces a vehicle must overcome to keep moving 36 (4)
different driving conditions.
PART 13
Answer any three full questions, each carries 10 marks.
5 9) Explain the working of rack and pinion steering mechanism with a neat sketch (6)
b) What are the advantages of power assisted steering system with the other (4)
systems?
6 9) Derive for the perfect rolling condition in Ackerman steering mechanism witha (6)

neat sketch

b) What is ‘Under Steer’ and ‘Over Steer’ in automobiles? (4)
7 2) Explain the features of McPherson Strut suspension system with a sketch (6)
b) What are the functions and advantages of independent suspension systems? (4)

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