GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER-V (NEW) EXAMINATION - SUMMER 2019
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Subject Code: 2150207 Date: 19/06/2019Subject Name: Automobile Transmission
Time: 02:30 PM TO 05:00 PM Total Marks: 70
Instructions:
1. Attempt all questions.
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2. Make suitable assumptions wherever necessary.3. Figures to the right indicate full marks.
Q.1 (a) Explain various resistances to motion of a vehicle. 03
(b) Write brief note on two and four wheel drive systems. 04
(c) Explain typical Janny hydrostatic drive with sketch. 07
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Q.2 (a) Explain principle of operation of clutch. 03
(b) Write difference between electric and hybrid drive system. 04
(c) With neat sketch explain fluid coupling. 07
OR
(c) With neat sketch explain torque convertor. 07
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Q.3 (a) Compare hydrostatic and hydrodynamic drive. 03
(b) Write the classification of transmission systems. 04
(c) Explain construction and working of transfer box with sketch. 07
OR
Q.3 (a) Discuss about requirements of clutch. 03
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(b) Brief note on types of hydrostatic drive. 04(c) Explain centrifugal clutch in detail with neat sketch. 07
Q.4 (a) Write short note on determination of gear ratios for vehicles. 03
(b) Short note: Hybrid drive system. 04
(c) Discuss the principle of early and modified Ward Leonard Control system. 07
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ORQ.4 (a) Compare single plate clutch and multi plate clutch. 03
(b) Explain hydraulic mode of operation clutch with sketch. 04
(c) Explain hydraulic actuation system for automatic transmission with neat sketch. 07
Q.5 (a) Define double declutching and synchronizing. 03
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(b) Explain any four points of gear maintenance. 04(c) With neat sketch explain construction and working of sliding-mesh gear box. 07
OR
Q.5 (a) Write requirements of clutch facing materials. 03
(b) Write short note on freewheel clutch. 04
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(c) Explain clutch maintenance in detail. 07--- Content provided by FirstRanker.com ---
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