Practice question

What does an alternator (or older dynamo charging system) primarily do?

  1. Mix coolant and oil
  2. Generate electricity to charge the battery and power electrical systems while the engine runs
  3. Increase brake pad life automatically
  4. Measure tread depth

Answer: B — Generate electricity to charge the battery and power electrical systems while the engine runs

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Practice more: CCEA GCSE MVRUS Practice Questions - CCEA GCSE Motor Vehicle and Road User Studies (2017) (Northern Ireland) Exam →