ME-802-A Automobile Engineering - May 2026 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 do you mean by Driver's visibility in automobile vehicles? Discuss Safety aspect related to commercial vehicle.
   How to answer

   • Define driver's visibility - direct and indirect vision, blind spots, field of view
   • Factors affecting visibility - windshield, pillars, mirrors, seating position, lighting
   • Safety aspects for commercial vehicle - mirrors, cameras, wipers, defogging, ergonomics
   • Regulatory and design measures - standards, cab design, blind-spot minimization
2. 7 Marks
   bDefine vehicle aerodynamics with layout. Discuss various possible location of engine in a vehicle while design.
   How to answer

   • Define vehicle aerodynamics - drag, lift, flow effects on performance and economy
   • Vehicle layout concept with sketch - front/rear engine, FWD/RWD
   • Various engine locations - front, rear, mid, transverse/longitudinal
   • Merits/demerits of each location on space, cooling, traction
3. 7 Marks
   aDescribe the basic component of a steering system in automobile and their function.
   How to answer

   • List basic steering components - wheel, column, gearbox, linkages, knuckle
   • Function of each component in transmitting motion
   • Steering geometry linkage arrangement
   • Role in directional control and stability
4. 7 Marks
   bDescribe the different types of steering gear used in vehicle.
   How to answer

   • Need for steering gear reduction
   • Types - worm and sector, rack and pinion, recirculating ball, cam and lever
   • Construction and working of each type
   • Application and comparison
5. 7 Marks
   aExplain types of gear boxes with neat sketches.
   How to answer

   • Purpose of gearbox in torque-speed variation
   • Types - sliding mesh, constant mesh, synchromesh, epicyclic/automatic
   • Neat sketches of each gearbox
   • Working and merits/demerits
6. 7 Marks
   bDiscuss the working principal of torque converter used in automobile.
   How to answer

   • Definition and location of torque converter in automatic transmission
   • Components - pump, turbine, stator and fluid coupling
   • Working principle with fluid flow and torque multiplication
   • Characteristics and applications
7. 7 Marks
   aExplain briefly with a neat sketch the construction and working of multiplate clutch.
   How to answer

   • Construction - multiple friction and pressure plates, springs, housing
   • Neat labelled sketch of multiplate clutch
   • Engagement/disengagement working
   • Applications in two-wheelers and heavy vehicles
8. 7 Marks
   bWhat do you understand by power brake? Explain the operating principal of pneumatic power brake.
   How to answer

   • Define power brake - assisted braking to reduce effort
   • Types and need for pneumatic system in heavy vehicles
   • Operating principle - compressor, reservoir, valves, brake chamber
   • Working sequence and advantages
9. 7 Marks
   aDescribe the construction and working of a telescopic shock absorber.
   How to answer

   • Construction - cylinder, piston, valves, oil and outer tube
   • Neat sketch of telescopic shock absorber
   • Working in compression and rebound strokes
   • Damping function in suspension
10. 7 Marks
    bExplain briefly the Conventional tube tyre and Tubeless tyre.
    How to answer

    • Construction of conventional tube tyre with tube
    • Construction of tubeless tyre and sealing
    • Comparison of merits, safety and maintenance
    • Applications
11. 7 Marks
    aDiscuss Environmental management system for Automobile vehicle.
    How to answer

    • Concept of environmental management system in automobiles
    • Pollutants - exhaust, evaporative, noise and waste
    • Control measures - engine tuning, after-treatment, recycling
    • Standards and implementation
12. 7 Marks
    bDiscuss Indian Standards for automobile emissions.
    How to answer

    • Sources of automobile emissions - CO, HC, NOx, PM
    • Evolution of Indian emission norms - Bharat Stage
    • Limit values for petrol/diesel vehicles
    • Testing and enforcement
13. 7 Marks
    aExplain the different fuel additives and discuss with their effects on engine performance.
    How to answer

    • Types of fuel additives - octane/cetane improvers, detergents, antioxidants
    • Function of each additive
    • Effects on combustion, efficiency, emissions and engine life
    • Examples and usage limits
14. 7 Marks
    bExplain the working principal of three-way catalytic converter. State its advantages.
    How to answer

    • Purpose of three-way catalytic converter
    • Construction - catalyst metals, honeycomb structure
    • Working principle - simultaneous oxidation and reduction of CO, HC, NOx
    • Advantages and operating conditions
15. 14 Marks
    Explain the following: (Any Two)

    1. i)Caster angle & Camber angle
    2. ii)Advantage of coil spring over leaf spring.
    3. iii)Clutch lining and bonding
    4. iv)Constant velocity universal joint
    How to answer

    • Definition and diagram for caster and camber angles
    • Effects on steering stability and tyre wear
    • Comparison of coil vs leaf spring, clutch lining materials
    • Construction/working of CV universal joint