Western Australia · Theory Test (CTT) · Road rules

You are driving at night with your headlights on high beam. When must you dip to low beam for an oncoming vehicle?

The answer

  • Only if the other driver flashes their lights at you
  • When the vehicle is within 100 metres
  • Only once the vehicle is directly alongside you
  • When the vehicle is within 200 metres Correct

Why that's the answer

You must switch to low beam when an oncoming vehicle is within 200 metres, and also when driving within 200 metres behind another vehicle. High beam at closer range can dazzle other drivers.

Where this rule comes from

Take the full Western Australia practice test (95 questions)

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