Western Australia · Theory Test (CTT) · Road rules

Which of these is capped at 100 km/h in WA regardless of a higher posted limit?

The answer

  • Vehicles more than 15 years old
  • Any vehicle carrying passengers
  • Buses and coaches over 5 tonnes Gross Vehicle Mass Correct
  • All vehicles at night

Why that's the answer

Buses and coaches over 5 tonnes GVM are capped at 100 km/h, as are vehicles with a Gross Combined Mass over 12 tonnes, vehicles towing caravans or trailers, and learner drivers.

Where this rule comes from

Take the full Western Australia practice test (95 questions)

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