GTU Mechanical Engineering (Semester 7)
Automobile Engineering
May 2016
Total marks: --
Total time: --
INSTRUCTIONS
(1) Assume appropriate data and state your reasons
(2) Marks are given to the right of every question
(3) Draw neat diagrams wherever necessary


1 (a) Define the term 'Automobile' and classified it.
7 M
1 (b) Classify the gearbox and explain constant mesh gear box with figure.
7 M

2 (a) Draw the layout plan of automobile chassis. Name the various components.
7 M
Solve any one question from Q2(b) & Q2(c)
2 (b) Explain the working of single plate clutch with the help of simple diagram.
7 M
2 (c) A car weighing 21 kN has a static weight distribution on the axles of 50:50. The wheel base is 2.5 m and the height of center of gravity above ground is 0.5 m. if the coefficient of friction on the highway is 0.6 , calculate the advantage of having rear wheel drive rather than front wheel drive as far as gradiability is concerned , if engine power is not a limitation.
7 M

Solve any two question from Q3(a), Q3(b) & Q3(c), Q3(d)
3 (a) Differentiate Hydraulic and Air braking system.
7 M
3 (b) State the objectives of employing a suspension system on an automobile.
7 M
3 (c) Explain with the help of neat sketch the construction of propeller shaft.
7 M
3 (d) Explain the working of Automatic transmission gear box.
7 M

Solve any two question from Q4(a), Q4(b) & Q4(c), Q4(d)
4 (a) Battery is the heart of electric system in automobile. Explain.
7 M
4 (b) What is tyre rotation and its purpose? Explain in detail.
7 M
4 (c) Draw and explain the simple layout of car wiring.
7 M
4 (d) Explain Convectional tube tyre & Tubeless tyre in detail.
7 M

Solve any two question from Q5(a), Q5(b) & Q5(c), Q5(d)
5 (a) Explain about Air bag as a safety provisions in cars.
7 M
5 (b) What is engine decoking? Why is it required? Also explain various methods of engine decoking.
7 M
5 (c) Describe briefly driving and conductor Licence. Also explain the process of renewal of driving licenses.
7 M
5 (d) Explain briefly the layout of Electric vehicle with Advantages and Disadvantages compared to a convectional vehicle.
7 M



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