Download GTU BE/B.Tech 2018 Winter 5th Sem New 2150207 Automobile Transmission Question Paper

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Subject Code:2150207

GUJARAT TECHNOLOGICAL UNIVERSITY

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Instructions:

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1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.

1. 1. What is need for transmission system in automobile? [03]
   2. Which are different resistances to motion of a vehicle. [04]

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   3. Explain working of single plate clutch with neat sketch showing constructional details. [07]
2. 1. List out requirements of friction lining materials for clutch. [03]
   2. Which are different mode of operation of clutch explain in brief. [04]
   3. Derive equation of torque for single plate clutch as per uniform pressure theory. [07]

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   OR

   1. Derive equation of torque for cone clutch as per uniform wear theory. [07]
3. 1. List objectives of the gear box for automobiles. [03]
   2. What is need for double declutching in constant mesh gear box? [04]

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   3. Draw neat sketch of synchronizing unit also explain working of the same. [07]

   OR

   1. What do you mean by overdrives? Explain in brief. [03]
   2. Prepare sketch of Transfer box showing constructional details. [04]

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4. 1. Draw sketch of fluid coupling. Explain how power is being transmitted from driving shaft to driven shaft in its part by part. [07]
   2. What do you mean by torque‘multiplication in case of torque convertor? [03]
   3. Explain working of free wheel with its line diagram. [04]
5. 1. Explain working of torque convertor with its torque characteristics curve. [07]

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   OR

   1. What is the principal of hydrostatic drive? [03]
   2. List advantages hydrostatic drive over hydrodynamic drive. [04]
   3. Explain construction and working of typical Janny hydrostatic drive. [07]

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6. 1. Discuss performance characteristics of electric drive for automobile in short. [03]
   2. List advantages and limitation of Electric drive. [04]
   3. Write short not on an electric-hybrid vehicle. [07]

   OR

   1. What is Transaxles? Explain. [03]

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   2. Explain Hydraulic Actuation system in brief. [04]
   3. Explain Chevrolet "Turbo glide" Transmission [07]

Date:04/12/2018
Total Marks: 70

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