STUPIDSID
1(a)
Give classification of engine classic on the basis of number of wheels fitted in the vehicle and number of driving wheels.
2 M
1(b)
Explain following terminologies in relevance to the body of a vehicle;
i) Legroom
ii) Headroom
iii) Shoulder room
i) Legroom
ii) Headroom
iii) Shoulder room
2 M
1(c)
What is transfer case. With the help of schematic figure show the position of transfer case in 4-wheel drive vehicle.
3 M
Solve any one question from Q.1(d) & Q.1(e)
1(d)
With the help of neat sketch explain function of followings:
i) Bumpers
ii) Frames
i) Bumpers
ii) Frames
7 M
1(e)
A truck having a projected area of 12 square meters travel ling at 60 Km/hr has a total resistance of 2943N. Rolling friction accounts for 25% of the total resistance, while 15% is due to surface friction. The rest is due to form drag. Calculate the coefficient of form drag if the density of air=1.25kg/m3.
7 M
2(a)
Explain the role of kingpin inclination in reduction of steering effort.
2 M
2(b)
What is trans-axle. Briefly describe it's working.
2 M
2(c)
Explain the effects of following caster angles.
i) Zero caster angle
ii) Inadequate caster angle.
i) Zero caster angle
ii) Inadequate caster angle.
3 M
Solve any one question from Q.2(d) & Q.2(e)
2(d)
Explain the following terms:
i) Toe-in and Toe-Out
ii) Camber
iii) Caster
iv) Under steer and over-steer
i) Toe-in and Toe-Out
ii) Camber
iii) Caster
iv) Under steer and over-steer
7 M
2(e)
Describe working of power steering with neat sketch.
7 M
3(a)
Enlist main parts of a friction clutch. Also write function of each part.
2 M
3(b)
Write advantages of synchromesh transmission system over constant mesh transmission system.
2 M
3(c)
Discuss in brief the two of rear axle drive.
3 M
Solve any one question from Q.3(d) & Q.3(e)
3(d)
Explain the following clutch troubles with their respective probable causes:
i) Slipping clutch
ii) Grabbing chattering clutch
iii) Rapid wear of lining
i) Slipping clutch
ii) Grabbing chattering clutch
iii) Rapid wear of lining
7 M
3(e)
Explain working of fluid coupling. How does it differ from a torque converter.
7 M
4(a)
What are different types of rear end suspension?
2 M
4(b)
Give the expression for any three efficiency associated with I.C. engine.
2 M
4(c)
Explain the need of self-energizing brakes.
3 M
Solve any one question from Q.4(d) & Q.4(e)
4(d)
With the help of neat sketch explain various components of a cross ply type tyre.
7 M
4(e)
Describe layout of a pneumatic brake system used on a bus, name parts and explain he workings.
7 M
5(a)
What is battery rating? Enlist commonly used battery
2 M
5(b)
What is the function and requirement of starting swiches1?
2 M
5(c)
With near sketch explain various part of headlight assembly of a car.
3 M
Solve any one question from Q.5(d) & Q.5(e)
5(d)
Enlist various advantages of microprocessor based control system for automobiles. Explain any one system.
7 M
5(e)
With the help of a line diagram, explain the construction and working of a wiper and horn in an automobile.
7 M
6(a)
List the emissions that are considered significant for measurement and performance study.
2 M
6(b)
Give a brief overview of Euro emission norms.
2 M
6(c)
What is crankcase blowby? How it is controlled?
3 M
Solve any one question from Q.6(d) & Q.6(e)
6(d)
What is catalytic converter, explain. Explain the working principle of three-way catalytic converter.
7 M
6(e)
Explain the need and working of EGR system for controlling NOx formation.
7 M
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