ME-802-A Automobile Engineering - May 2024 Question Paper

Under each question, How to answer lists the points an answer should cover, outlined by CampusPrep from the syllabus. Check the details against your textbook.

1. 7 Marks
   aWhat are the main components of a chassis and their functions?
   How to answer

   • Define chassis as supporting frame structure
   • List main components: frame, engine, transmission, suspension, steering, brakes, wheels
   • State function of each component
2. 7 Marks
   bDiscuss the materials commonly used in chassis construction and their respective advantages and disadvantages.
   How to answer

   • List common materials: steel, aluminium alloy, composites, carbon steel
   • Advantages: strength, cost, formability, weight
   • Disadvantages: weight, corrosion, cost, repairability
   • Conclude suitability for chassis construction
3. 7 Marks
   aDefine vehicle aerodynamics with layout. Discuss various possible locations of engine in a vehicle while design.
   How to answer

   • Define vehicle aerodynamics and drag, lift
   • Show typical vehicle layout with engine locations
   • Discuss front, rear, mid-engine locations
   • Merits/demerits of each location for design
4. 7 Marks
   bWhat are the challenges associated with designing chassis for electric vehicles compared to conventional internal combustion engine vehicles?
   How to answer

   • Contrast IC engine chassis vs EV skateboard needs
   • Battery packaging, weight and crash safety
   • Stiffness, NVH, thermal and electrical safety challenges
   • Cost and manufacturing considerations
5. 7 Marks
   aDescribe the basic components of a steering system in an automobile and their functions.
   How to answer

   • Define steering system purpose
   • List components: steering wheel, column, gearbox, linkages, knuckle
   • Explain function of each component
6. 7 Marks
   bDefine centre point steering. Explain over steer and under steer with suitable sketches.
   How to answer

   • Define centre point steering geometry
   • Define oversteer vs understeer behaviour
   • Illustrate with sketches of turning paths
   • Mention causes and effects on stability
7. 7 Marks
   aExplain briefly with a neat sketch the construction and working of multiple clutch.
   How to answer

   • Define multiple plate clutch and its need
   • Describe construction: multiple friction plates, pressure plate, springs
   • Explain engagement/disengagement working with sketch
   • Mention applications
8. 7 Marks
   bDiscuss various types of gear boxes with applications.
   How to answer

   • List types: sliding mesh, constant mesh, synchromesh, epicyclic, CVT
   • Explain construction/working briefly
   • Give vehicle applications for each type
9. 7 Marks
   aWhat is a Torque converter? Explain its characteristics.
   How to answer

   • Define torque converter as hydrodynamic drive
   • Describe pump, turbine and stator elements
   • Explain torque multiplication and efficiency characteristics
10. 7 Marks
    bWhat do you understand by power brakes? Explain the operating principle of pneumatic power brake.
    How to answer

    • Define power brakes and need for assistance
    • Explain pneumatic system layout and components
    • Describe operating principle during apply and release
11. 7 Marks
    aDiscuss different types of wheels and tyres used commercially in India.
    How to answer

    • List wheel types: pressed steel, wire, alloy, split
    • List tyre types: tube, tubeless, radial, bias
    • Discuss commercial usage in India with examples
12. 7 Marks
    bDefine 'shock absorber' used in suspension system. Discuss its types.
    How to answer

    • Define shock absorber as damping device
    • Explain need in suspension system
    • Discuss types: telescopic, lever arm, gas-filled, hydraulic
13. 7 Marks
    aState the function of battery and explain construction of automobile battery with sketch.
    How to answer

    • State functions: starting, ignition, lighting power
    • Describe construction: plates, electrolyte, separators, casing with sketch
    • Explain charging/discharging briefly
14. 7 Marks
    bDraw a typical lighting system for a modern vehicle and describe its operation.
    How to answer

    • Draw circuit layout: battery, switches, fuses, lamps
    • Describe head, tail, indicator and interior circuits
    • Explain operation and safety devices
15. 7 Marks
    aDiscuss environmental management systems for automotive vehicles.
    How to answer

    • Define environmental management in automotive context
    • Discuss emission control, waste, recycling systems
    • Mention ISO 14001 and regulatory compliance
16. 7 Marks
    bWrite short notes on :

    1. i)Euro I and II Norms
    2. ii)Fuel additives
    How to answer

    • Explain Euro I and II emission norms and limits
    • Explain fuel additives purpose and types
    • Mention effects on emission and performance