GUJARAT TECHNOLOGICAL UNIVERSITY
BE- SEMESTER-V (NEW) EXAMINATION - WINTER 2020
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Subject Code:2150207 Date:29/01/2021Subject Name: Automobile Transmission
Time:10:30 AM TO 12:30 PM Total Marks: 56
Instructions:
1. Attempt any FOUR questions out of EIGHT questions.
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2. Make suitable assumptions wherever necessary.3. Figures to the right indicate full marks.
Q.1 (a) Compare transmission system and power plant system of an automobile. 03
(b) Draw layout of four wheel drive. 04
(c) With the help of complete sketch locate and explain all the components of 07
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transmission system. Q.2 (a) Explain good requirements of clutch. 03
(b) Explain function of cushion spring and helical coil spring in clutch plate. 04
(c) Derive the equation of torque for multi plate clutch with suitable figure. 07
Q.3 (a) Enlist friction materials used in clutch plate with their coefficient of friction. 03
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(b) Explain need of double declutching. 04(c) Explain diaphragm clutch with neat sketch. 07
Q.4 (a) Explain objective of gear box in an automobile. 03
(b) Explain any two trouble shooting and remedies of gear box. 04
(c) Explain fluid coupling with construction detail. 07
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Q.5 (a) Explain the need of torque converter in transmission system of an 03
automobile.
(b) Compare hydrostatic drive with hydrodynamic drive. 04
(c) Explain synchromesh gear box with neat sketch. 07
Q.6 (a) Write merit and demerit of electric drive. 03
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(b) Explain in brief working principle of torque converter. 04(c) Explain construction and working of typical Janny hydrostatic drive. 07
Q.7 (a) Write limitation of hydrostatic drive. 03
(b) Explain in brief hydraulic actuation system. 04
(c) Explain series hybrid system with layout. 07
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Q.8 (a) Explain working principle of CVT drive. 03
(b) Explain in brief Ward Leonard Control system. 04
(c) Explain Chevrolet turbo glide transmission system. 07
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