GUJARAT TECHNOLOGICAL UNIVERSITY
BE- SEMESTER-VII (NEW) EXAMINATION - WINTER 2020
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Subject Code:2170207 Date:21/01/2021
Subject Name:Two and Three Wheeler Technology
Time:10:30 AM TO 12:30 PM Total Marks: 56
Instructions:
- Attempt any FOUR questions out of EIGHT questions.
- Make suitable assumptions wherever necessary.
- Figures to the right indicate full marks.
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MARKS
Q.1 (a) Draw the layout of two wheelers. 03
(b) Write a short note on cooling system in two wheeler. 04
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(c) Explain selection criteria and design considerations for two wheeler 07
Q.2 (a) What are the possible causes of more fuel consumption in two 03 wheeler and give its remedies.
(b) Explain front and rear lightning system of three wheeler. 04
(c) Explain preventive maintenance in two and three wheelers. 07
Q.3 (a) Differentiate between tube tyre and tubeless tyre. 03
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(b) Draw the valve timing diagram for 4 stroke petrol engine and port 04 diagram for 2 stroke petrol engine.
(c) Explain shock absorber construction and working principle. 07
Q.4 (a) Differentiate between spoke wheel and alloy wheel. 03
(b) Explain in detail with diagram Disc brake for two wheelers. 04
(c) Define scavenging? Explain any one method with neat sketch. 07
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Q.5 (a) What are the Special requirements for Racing bikes 03
(b) Which modification is required to use CNG in three wheeler. 04
(c) Explain Kick start mechanism for two wheeler. 07
Q.6 (a) Differentiate between Single plate and multi plate clutch. 03
(b) Explain construction of handle bar used in motorcycles. 04
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(c) Explain construction of handle bar used in motorcycles. Also list 07 down some of the standard size parameters.
Q.7 (a) Explain warning indicator used in two wheeler. 03
(b) Write a short note on CVT-Continuously Variable Transmission of 04 Two-wheeler.
(c) Explain Hand Lever & Rope drive type starting mechanism for three 07 wheeler.
Q.8 (a) Explain gear shifting mechanism in bike. 03
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(b) Discuss the working of electric horn used in two wheelers. 04
(c) What is the purpose of helmet and explain different types of helmets. 07
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