Practice question

What does a triangular warning sign displaying rocks tumbling down a steep slope warn about on Bhutan's highways?

  1. Gravel extraction quarry ahead
  2. Hazardous zone prone to falling rocks and landslides ahead
  3. Unpaved dirt road surface ahead
  4. Heavy construction trucks entering from the hillside

Answer: B — Hazardous zone prone to falling rocks and landslides ahead

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