Why can a piston aircraft engine continue running even if the battery is dead?

Choices

• ✓ The magnetos generate their own spark independent of the batterycorrect

  Each engine-driven magneto is self-contained and does not need the battery.

• The alternator directly fires the spark plugs

  The alternator charges the battery and powers the bus; it does not fire the plugs.

• The starter keeps spinning the engine

  The starter is used only to start the engine and needs battery power.

• The engine runs on residual fuel pressure alone

  Ignition, not just fuel pressure, keeps the engine running.