Thursday, November 19, 2015

AT6501 Automotive Transmission Nov Dec 2015 Important Questions

Those who are searching for important questions of AT6501 Automotive Transmission can make use of the following important questions Nov Dec 2015 for Anna University Chennai Examinations. It's 5th Semester examination in Automobile Engineering.

Anna University Chennai
Department of Auto Engineering
Fifth Semester
AT6501 Automotive Transmission Important Questions Nov Dec 2015
November / December 2015 Exam Important Questions
(Regulation 2013)

UNIT I CLUTCH AND GEARBOX
1. Different types of clutches, principle & Construction of Single plate coil spring and Diaphragm spring clutches.
(OR)
2. Need and Objectives of Gear box. Construction and operation of Sliding mesh, Constant mesh and Synchromesh gearboxes.
3. Determination of gear ratios for vehicles. Performance characteristics in different speeds.
4.Problems on performance of automobile such as Resistance to motion, Tractive effort, Engine speed & Power and acceleration.
NOTE: Some times asked 1 and 2 mingle questions, so must read 2 questions
3,4 are rare (but 4 is time ask, is possible)

UNIT II HYDRODYNAMIC TRANSMISSION
1. what is Fluid coupling,Principle-Constructional details, Performance characteristics.
Reduction of drag torque in fluid coupling.
2. Torque converter-Principle-constructional details, performance characteristics.
(OR)
3. Multistage torque converters and Polyphase torque converters.

UNIT III EPICYCLIC GEARBOXES USED IN AUTOMATIC TRANSMISSION
1. EPICYCLIC GEARBOXES -
2. Wilson Gear box,
(OR)
3.Cotal electromagnetic transmission-
4. Hydraulic control system for Automatic Transmission.

UNIT IV AUTOMATIC TRANSMISSION APPLICATIONS
1. Need for automatic transmission,
2.Four speed longitudinally mounted automatic transmission -
(OR)
3. Continuously Variable Transmission (CVT) ‒Types ‒ Operations of a typical CVT.
NOTE: 3 is compulsory

UNIT V HYDROSTATIC AND ELECTRIC DRIVE
1. What is Hydrostatic drive, Various types of hydrostatic systems, Principles of Hydrostatic
drive system.Advantages and limitations.

2. Comparison of hydrostatic drive with hydrodynamic drive, construction and working of typical Janny hydrostatic drive.
(OR)
3.Electric drive-types- Principle of early and modified Ward Leonard Control system-Advantages & limitations.

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