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

Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2018 Winter 5th Sem New 2150207 Automobile Transmission Previous Question Paper

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Seat No.: ________ Enrolment No.___________

GUJARAT TECHNOLOGICAL UNIVERSITY

BE - SEMESTER ?V (NEW) EXAMINATION ? WINTER 2018
Subject Code:2150207 Date:04/12/2018

Subject Name:Automobile Transmission

Time: 10:30 AM TO 01:00 PM Total Marks: 70

Instructions:

1. Attempt all questions.

2. Make suitable assumptions wherever necessary.

3. Figures to the right indicate full marks.

MARKS

Q.1 (a) What is need for transmission system in automobile? 03
(b) Which are different resistances to motion of a vehicle. 04
(c) Explain working of single plate clutch with neat sketch showing
constructional details.
07

Q.2 (a) List out requirements of friction lining materials for clutch. 03
(b) Which are different mode of operation of clutch explain in brief. 04
(c) Derive equation of torque for single plate clutch as per uniform pressure
theory.
07
OR
(c) Derive equation of torque for cone clutch as per uniform wear theory. 07
Q.3 (a) List objectives of the gear box for automobiles. 03
(b) What is need for double declutching in constant mesh gear box? 04
(c) Draw neat sketch of synchronizing unit also explain working of the
same.
07
OR
Q.3 (a) What do you mean by overdrives? Explain in brief. 03
(b) Prepare sketch of Transfer box showing constructional details. 04
(c) Draw sketch of fluid coupling. Explain how power is being transmitted
from driving shaft to driven shaft in its part by part.
07
Q.4 (a) What do you mean by torque multiplication in case of torque convertor? 03
(b) Explain working of free wheel with its line diagram. 04
(c) Explain working of torque convertor with its torque characteristics
curve.
07
OR
Q.4 (a) What is the principal of hydrostatic drive? 03
(b) List advantages hydrostatic drive over hydrodynamic drive. 04
(c) Explain construction and working of typical Janny hydrostatic drive. 07
Q.5 (a) Discuss performance characteristics of electric drive for automobile in
short.
03
(b) List advantages and limitation of Electric drive. 04
(c) Write short not on an electric-hybrid vehicle. 07
OR

Q.5 (a) What is Transaxles? Explain. 03
(b) Explain Hydraulic Actuation system in brief. 04
(c) Explain Chevrolet "Turbo glide" Transmission 07
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