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  • Question
  • Tachometer in a vehicle measures


  • Options
  • A. speed
  • B. distance
  • C. engine r.p.m.
  • D. fuel consumption

  • Correct Answer
  • engine r.p.m. 


  • Automobile Engineering problems


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    • 1. The component in the radiator of an automobile that increases the boiling point of water is

    • Options
    • A. drain plug
    • B. water jacket
    • C. vacuum valve
    • D. pressure cap
    • Discuss
    • 2. The caster is called positive when the top of the king pin is inclined to the

    • Options
    • A. rear of the vehicle
    • B. front of the vehicle
    • C. left of the vehicle
    • D. right of the vehicle
    • Discuss
    • 3. The reconditioning process used to give cylinder bore surfaces a cross-hatch pattern, is known as

    • Options
    • A. honing
    • B. porous plating
    • C. boring
    • D. shot peening
    • Discuss
    • 4. The self ignition temperature of Diesel as compared to petrol is

    • Options
    • A. higher
    • B. lower
    • C. same
    • D. depends on fuel quality
    • Discuss
    • 5. The ease with which petrol vapourizes is called its

    • Options
    • A. oxidation
    • B. octane number
    • C. volatility
    • D. cetane number
    • Discuss
    • 6. The characteristic that is enhanced by the honing of cylinder sleeves inner surface is

    • Options
    • A. cooling efficiency
    • B. resistance to wear
    • C. lubrication performance
    • D. none of these
    • Discuss
    • 7. The function of positive crankcase ventilation (PCV) system is that it

    • Options
    • A. mixes fuel with air
    • B. promotes combustion by creating a swirling movement in the air-fuel mixture
    • C. returns blow-by gases from the crankcase to the intake system
    • D. feeds blow-by gases to the exhaust manifold
    • Discuss
    • 8. In which of the following conditions, the idle CO percentage should be measured with the vehicle?

    • Options
    • A. Headlights and other electrical devices are switched off.
    • B. Headlights and other electrical devices are switched on.
    • C. Headlights and other lights are switched off.
    • D. Headlights are switched on.
    • Discuss
    • 9. The rigid suspension is beneficial when

    • Options
    • A. it is desired to reduce the unsprung mass
    • B. it is desired to have more flexibility in design
    • C. it is desired to improve tyre-to-ground contact characteristics
    • D. large changes in load make it necessary to have a large suspension stroke
    • Discuss
    • 10. An under-inflated tyre will wear the tread most

    • Options
    • A. near the centre
    • B. near the edges
    • C. in the lateral direction
    • D. in the cross direction
    • Discuss


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