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  • What happens in exhaust stroke?
    Burned gases exit.
  • Max force during power stroke?
    30,000 psi
  • What is TDC?
    Top Dead Center.
  • What does the exhaust port do?
    Releases gases.
  • Mechanical advantage of 4-stroke?
    High efficiency.
  • How many strokes complete one cycle?
    Four.
  • What is another name for the 4-stroke cycle?
    Otto cycle.
  • What happens when intake valve closes?
    Compression starts.
  • Why is it good for aircraft?
    High performance
  • What starts the power stroke?
    Ignition
  • What is the Name the of four strokes?
    Intake, Compression, Power, Exhaust.
  • Why compress the mixture?
    Better combustion.
  • What pushes the piston down?
    Expanding gases.
  • How many crankshaft revolutions per cycle?
    Two (720°).
  • Benefit of compressing mixture?
    Efficient burn.
  • What is BDC?
    Bottom Dead Center.
  • What happens during intake stroke?
    Air-fuel enters cylinder.
  • What causes low pressure in exhaust?
    Fast gas flow.
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