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Automobile Engineering problems

  • 1. The petrol engines are also known as

  • Options
  • A. spark ignition (S.I.) engines
  • B. compression ignition (C.I.) engines
  • C. steam engines
  • D. none of these
    • Discuss
  • 2. If the level of tension in the belt is too high, it can result in a loss of power or in bending of the rotating shaft or crankshaft.

  • Options
  • A. Correct
  • B. Incorrect
    • Discuss
  • 3. If the air-fuel mixture ignites before the spark takes place at spark plug, the condition is called

  • Options
  • A. detonation
  • B. ignition
  • C. pre-ignition
  • D. rumble
    • Discuss
  • 4. In a spark plug, when the temperature of the central electrode exceeds a certain temperature, any carbon that has adhered will be burnt off, and the temperature at which this burning off carbon starts is referred to as the self cleaning temperature.

  • Options
  • A. Correct
  • B. Incorrect
    • Discuss
  • 5. The difference between DOT 3 and DOT 4 brake fluids is

  • Options
  • A. DOT 4 fluid has a higher boiling point than DOT 3 fluid
  • B. DOT 4 fluid has a lower boiling point than DOT 3 fluid
  • C. DOT 3 and DOT 4 fluids have the same boiling point, but DOT 4 fluid has a longer service life
  • D. DOT 4 fluid is more resistant to freezing than DOT 3 fluid
    • Discuss
  • 6. The coefficient of friction for the clutch facing is approximately

  • Options
  • A. 0.1
  • B. 0.4
  • C. 0.8
  • D. 1.2
    • Discuss
  • 7. The component that connects the steering rack to the knuckles is

  • Options
  • A. tie-rod
  • B. sector gear
  • C. pivot
  • D. spline
    • Discuss
  • 8. The condition that causes vapour locking in a brake system is

  • Options
  • 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
    • Discuss
  • 9. Which of the following symptom is caused as a result of brake disc run out?

  • Options
  • A. Ineffectiveness of the brakes
  • B. Judder during braking
  • C. Localized wearing of the brake pads
  • D. Rapid wearing of the brake pads
    • Discuss
  • 10. Positive camber is used to compensate for wheels tilting inward due to the weight of the vehicle.

  • Options
  • A. Yes
  • B. No
    • Discuss

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