Practice question

What does a circular white traffic sign with a red border and black number '40' in the center indicate?

  1. Minimum speed limit of 40 km/h
  2. Maximum speed limit of 40 km/h (最高限速40公里/小时)
  3. Weight limit of 40 metric tons
  4. Recommended cruising speed of 40 km/h

Answer: B — Maximum speed limit of 40 km/h (最高限速40公里/小时)

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