Automobile And Mechanical Mock Test! Trivia Questions Quiz

20 Questions

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Automobile And Mechanical Mock Test! Trivia Questions Quiz

The trivia questions quiz below is an automobile and mechanical mock test! Automobiles are very complex machines and need a lot of things to work perfectly together. If you want to test out what you know about them, the quiz will be perfect for you. Do give it a try and get to see how well you will do.


Questions and Answers
  • 1. 
    The condition that causes vapor locking in a brake system is
    • A. 

      Overheating of the fluid due to frequent brake application

    • B. 

      overcooling of the brakes during high speed driving

    • C. 

      Keeping the vehicle without use for an extended period

    • D. 

      An excessively high engine speed on a downhill road

  • 2. 
    The motion of the cam is transferred to the valves through
    • A. 

      Rocker arms

    • B. 

      Pistons

    • C. 

      Camshaft pulley

    • D. 

      Valve stems  

  • 3. 
    Which of the following symptom is caused as a result of brake disc run out?
    • A. 

      Ineffectiveness of the brakes

    • B. 

      Judder during braking

    • C. 

      Localized wearing of the brake pads

    • D. 

      The rapid wearing of the brake pads

  • 4. 
    If the air-fuel mixture in a spark-ignition engine is too rich, then the air-fuel ratio is about
    • A. 

      17:1

    • B. 

      15:1

    • C. 

      10:1

    • D. 

      13:1

  • 5. 
    If the air-fuel mixture ignites before the spark takes place at the spark plug, the condition is called
    • A. 

      Detonation

    • B. 

      Ignitation

    • C. 

      Pre-ignition

    • D. 

      Rumble

  • 6. 
    The purpose of adding pigment to the paint is that it
    • A. 

      Optimises the viscosity of paint

    • B. 

      Makes paint film hard

    • C. 

      Gives colour and filling up effect to the paint

    • D. 

      None of the above

  • 7. 
    In a four-speed four-stroke Diesel engine, the intake valve
    • A. 

      Opens at T.D.C. and closes at B.D.C

    • B. 

      Opens at 20° before T.D.C. and closes at 35° after B.D.C

    • C. 

      Opens at 10° after T.D.C. and closes at 20° before B.D.C.

    • D. 

      None of the above

  • 8. 
    The purpose of transmission in an automobile is
    • A. 

      To vary the speed of automobile

    • B. 

      To vary the torque at the wheels

    • C. 

      To vary the power of automobile

    • D. 

      None of these

  • 9. 
    The most effective method of controlling S.I. engine exhaust emission is by
    • A. 

      Recirculating exhaust

    • B. 

      Using catalytic converter

    • C. 

      Using some additives in the fuel

    • D. 

      None of these

  • 10. 
    The basic function of the suspension is to
    • A. 

      Absorb vibration and impact forces from the road surface

    • B. 

      Ensure that the steering wheel can deliver a suitable amount of steering force

    • C. 

      Ensure that wheel alignment is not disturbed during driving

    • D. 

      Automatically correct the effects of over steering  

  • 11. 
    The included angle is the sum of the
    • A. 

      Camber and castor

    • B. 

      Castor and S.A.I

    • C. 

      Camber and S.A.I.

    • D. 

      Camber and toe-in

  • 12. 
    Segmental chips are formed during machining
    • A. 

      Mild steel

    • B. 

      Cast iron

    • C. 

      High speed steel

    • D. 

      High carbon steel  

  • 13. 
    If the diameter of the hole is subject to considerable variation, then for locating in jigs and fixtures, the pressure type of locator used is
    • A. 

      Conical locator

    • B. 

      Cylindrical locator

    • C. 

      Diamond pin locator

    • D. 

      Vee locator

  • 14. 
    A broach has
    • A. 

      Roughing teeth

    • B. 

      Semi-finishing teeth

    • C. 

      Finishing teeth

    • D. 

      All of these

  • 15. 
    Specify the sequence correctly
    • A. 

      Grain growth, recrystallisation, stress relief

    • B. 

      Stress relief, grain growth, recrystallization

    • C. 

      Stress relief, recrystallisation, grain growth

    • D. 

      Grain growth, stress relief, recrystallization

  • 16. 
    Which of the following material has maximum ductility?
    • A. 

      Copper

    • B. 

      Nickel

    • C. 

      Aluminium

    • D. 

      Mild steel

  • 17. 
    The heat treatment process used for softening hardened steel is
    • A. 

      Carburising

    • B. 

      Normalising

    • C. 

      Annealing

    • D. 

      Tempering

  • 18. 
    In a Kaplan turbine runner, the number of blades are generally between
    • A. 

      2 to 4

    • B. 

      4 to 8

    • C. 

      8 to l6

    • D. 

      16 to 24

  • 19. 
    Which of the following turbine is preferred for 0 to 25 m head of water?
    • A. 

      Pelton wheel

    • B. 

      Kaplan turbine

    • C. 

      Francis turbine  

    • D. 

      None of these

  • 20. 
    The overall efficiency of a reaction turbine is the ratio of
    • A. 

      Power produced by the turbine to the energy actually supplied by the turbine

    • B. 

      Actual work available at the turbine to the energy imparted to the wheel

    • C. 

      Workdone on the wheel to the energy (or head of water) actually supplied to the turbine

    • D. 

      None of the above