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  • Question
  • The octane rating of petrol commerically available is


  • Options
  • A. 85-95
  • B. 95-100
  • C. 100-110
  • D. 110-125

  • Correct Answer
  • 85-95 


  • Automobile Engineering problems


    Search Results


    • 1. The aspect ratio (expressed in percentage) of the tyre is defined as the ratio of

    • Options
    • A. section width to section height
    • B. section height to section width
    • C. wheel diameter to section height
    • D. wheel diameter to section width
    • Discuss
    • 2. The service brakes employed in cars are generally operated

    • Options
    • A. mechanically
    • B. hydraulically
    • C. pneumatically
    • D. none of these
    • Discuss
    • 3. The air resistance to a car at 20 kmph is R. The air resistance at 40 kmph will be

    • Options
    • A. R
    • B. 2 R
    • C. 4R
    • D. 4 R2
    • Discuss
    • 4. The major purpose of an electronically-controlled automatic transmission is that this type of transmission

    • Options
    • A. eliminates gear clutches
    • B. eliminates the gear shift lever
    • C. reduces the number of automatic-transmission components
    • D. reduces shift shock and achieves more efficient transmission of engine torque
    • Discuss
    • 5. The purpose of a cylinder head gasket is to

    • Options
    • A. prevent the combustion gases from leaking from the joint between the cylinder block and the cylinder head
    • B. prevent engine oil from going into combustion chamber
    • C. removes impurities from cylinder head lubricating oil
    • D. none of the above
    • Discuss
    • 6. The function of a second ring is that it is a

    • Options
    • A. back up compression ring which will work in place of the top ring when it is broken
    • B. compression ring and aids the top ring in sealing and cooling
    • C. back up oil control ring which will work in place of the bottom ring when it is broken
    • D. cushion ring which prevents piston slap and knock
    • Discuss
    • 7. In order to implement gear changes in the gear unit of an automatic transmission, a __________ is used.

    • Options
    • A. synchronizer
    • B. planetary gear
    • C. magnetic clutch
    • D. hydraulic multi plate clutch
    • Discuss
    • 8. The compression ratio for Diesel engines usually lies in the range of

    • Options
    • A. 6-10
    • B. 10-15
    • C. 15-25
    • D. 25-40
    • Discuss
    • 9. The ball joints are used on the tie-rod ends, because they

    • Options
    • A. reduce the amount of noise generated
    • B. reduce the amount of sliding resistance
    • C. can deal with movement of the suspension both vertically and in other directions
    • D. improve the force transmission speed
    • Discuss
    • 10. Instead of valves, the ports are used in case of

    • Options
    • A. four stroke I.C. engines
    • B. two-stroke I.C. engines
    • C. V-6 engines
    • D. none of these
    • Discuss


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