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  • Question
  • In a Diesel engine, the fuel is ignited by


  • Options
  • A. an electric spark
  • B. the heat of compression
  • C. the hot exhaust
  • D. none of these

  • Correct Answer
  • the heat of compression 


  • Automobile Engineering problems


    Search Results


    • 1. The negative terminal post on the top of a battery is

    • Options
    • A. smaller than the positive terminal post
    • B. larger than the positive terminal post
    • C. of the same size as the positive terminal post
    • D. none of these
    • Discuss
    • 2. Which one of the following statements correctly describes the construction of a planetary gear type differential?

    • Options
    • A. The six planetary pinions rotate in constant mesh with the internal gears.
    • B. One drive shaft is splined to the central gear and the other to the planetary gear.
    • C. Each planetary pinion gear meshes with both the central gear and the internal gear.
    • D. The internal gear is fixed to the planetary gear.
    • Discuss
    • 3. The Diesel 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
    • 4. The basic purpose of tyres is to

    • Options
    • A. grip the road and provide good traction
    • B. substitute for springs
    • C. act as brake
    • D. none of these
    • Discuss
    • 5. The power source for a brake booster is

    • Options
    • A. exhaust manifold pressure
    • B. electricity
    • C. the pressure difference between the atmospheric pressure and the vaccum pressure in the intake manifold
    • D. hydraulic pump
    • Discuss
    • 6. In Diesel engines, the duration between the time of injection and the time of ignition is called

    • Options
    • A. spill cut-off
    • B. delay period
    • C. injection period
    • D. ignition period
    • Discuss
    • 7. The gear shift lever requires two separate motions to shift gears, and the first movement

    • Options
    • A. moves the synchronizer
    • B. selects the synchronizer
    • C. meshes the gears
    • D. operates the clutch
    • Discuss
    • 8. The advantage of the fuel injection system over the carburetor system is

    • Options
    • A. improved fuel efficiency
    • B. improved emission
    • C. improved power output
    • D. all of these
    • Discuss
    • 9. In a four stroke engine for each crankshaft revolution, the camshaft revolves

    • Options
    • A. one-half turn
    • B. one turn
    • C. two turns
    • D. four turns
    • Discuss
    • 10. Cushioning springs in clutch plate reduces

    • Options
    • A. vehicle speed
    • B. torsional vibrations
    • C. jerky starts
    • D. none of these
    • Discuss


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