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    X20182 (At6501)

    Uploaded by

    P Mithun
    The document is a question paper for an Automotive Transmission examination covering various topics related to automotive transmissions. It includes: - Part A contains 10 short answer questions about clutch materials, transmission system requirements, overdrives, automatic transmissions, components of hydraulic control systems, advantages of epicyclic gearboxes, functions of CVTs, need for automatic transmissions, conventional transmissions, and disadvantages of electronic controlled transmissions. - Part B contains 5 long answer questions about diaphragm clutches, synchronizers, torque converters, fluid couplings, Wilson and Ford gearboxes, automatic transmissions, and early/modified Ward Leonard control systems. - Part C contains 1 long answer question

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    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd

    X20182 (At6501)

    Uploaded by

    P Mithun
    20 views2 pages
    The document is a question paper for an Automotive Transmission examination covering various topics related to automotive transmissions. It includes: - Part A contains 10 short answer questions about clutch materials, transmission system requirements, overdrives, automatic transmissions, components of hydraulic control systems, advantages of epicyclic gearboxes, functions of CVTs, need for automatic transmissions, conventional transmissions, and disadvantages of electronic controlled transmissions. - Part B contains 5 long answer questions about diaphragm clutches, synchronizers, torque converters, fluid couplings, Wilson and Ford gearboxes, automatic transmissions, and early/modified Ward Leonard control systems. - Part C contains 1 long answer question

    Original Title

    1640951804114_X20182(AT6501)

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    The document is a question paper for an Automotive Transmission examination covering various topics related to automotive transmissions. It includes: - Part A contains 10 short answer questions about clutch materials, transmission system requirements, overdrives, automatic transmissions, components of hydraulic control systems, advantages of epicyclic gearboxes, functions of CVTs, need for automatic transmissions, conventional transmissions, and disadvantages of electronic controlled transmissions. - Part B contains 5 long answer questions about diaphragm clutches, synchronizers, torque converters, fluid couplings, Wilson and Ford gearboxes, automatic transmissions, and early/modified Ward Leonard control systems. - Part C contains 1 long answer question

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    20 views2 pages

    X20182 (At6501)

    Uploaded by

    P Mithun
    The document is a question paper for an Automotive Transmission examination covering various topics related to automotive transmissions. It includes: - Part A contains 10 short answer questions about clutch materials, transmission system requirements, overdrives, automatic transmissions, components of hydraulic control systems, advantages of epicyclic gearboxes, functions of CVTs, need for automatic transmissions, conventional transmissions, and disadvantages of electronic controlled transmissions. - Part B contains 5 long answer questions about diaphragm clutches, synchronizers, torque converters, fluid couplings, Wilson and Ford gearboxes, automatic transmissions, and early/modified Ward Leonard control systems. - Part C contains 1 long answer question

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
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    *X20182*

    Reg. No. :

    Question Paper Code : X 20182


    B.e./B.Tech. Degree Examinations, NOVEMBER/DECEMBER 2020
    Fifth Semester
    Automobile Engineering
    AT 6501 – Automotive Transmission
    (Regulations 2013)

    Time : Three Hours Maximum : 100 Marks

    Answer all questions

    Part – A (10×2=20 Marks)

    1. What are the essential properties required for a clutch facing material and how
    these are met with in common materials ?

    2. List out the requirements of transmission system.

    3. Discuss overdrives used in automobiles.

    4. Define-Automatic transmission system.

    5. List the major components of hydraulic control system in automatic transmission.

    6. State the advantages of epicyclic gear box.

    7. What are the functions of CVT ?

    8. Discuss the need for automatic transmission.

    9. What is meant by conventional transmission ?

    10. Give the disadvantages of Electronic Controlled Transmission.

    Part – B (5×13=65 Marks)

    11. a) i) With a neat sketch, explain the construction and working of diaphragm
    type clutch. (8)
    ii) Discuss the need of synchronizer and explain its working with a simple
    sketch. (5)
    (OR)
    X 20182 *X20182*

    b) A motor car engine develops maximum torque at 2000 rpm and maximum
    power at 3500 rpm. if the bottom gear ratio is 4 : 1; find the approximate
    ratios of speed for a gear box having 4 forward speeds when the ratios are in
    geometrical progression.
    If the same car at top gear has speeds of near about 50 km/h and 80 km/h at
    the corresponding engine speeds at maximum torque and maximum power
    respectively and the effective diameter of the driving wheels is 0.6 m, find a
    suitable back axle ratio. (13)

    12. a) Explain the principle of operation of hydrodynamic torque converter with a


    polar diagram.
    (OR)
    b) Discuss the construction and performance of fluid coupling and its application.

    13. a) Discuss the construction and working principles of Wilson gear box with neat
    sketch.
    (OR)
    b) Explain the construction and working principles of Ford 7-model used in
    automobiles with neat sketches.

    14. a) Explain the construction and working principles of Automatic transmission


    system with sketch.
    (OR)
    b) Explain, the construction and working principles of continuously variable
    transmission with neat sketch.

    15. a) Briefly explains the construction and working principles of early and modified
    ward leonard control system.
    (OR)
    b) Explain the difference between hydrostatic drive and hydrodynamic drive.

    Part – C (1×15=15 Marks)

    16. a) Describe Chevrolet ‘Turboglide’ automatic transmission system with a neat sketch.
    (OR)
    b) With a basic Hydraulic circuit diagram, explain the functions of various valves
    while engaging second gear.

    –––––––––––––

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