Practice question

According to ICAO Doc 4444 and Annex 3, when must Runway Visual Range (RVR) values be reported to arriving and departing flights by air traffic control?

  1. Whenever the horizontal visibility or RVR is observed to be less than 1,500 meters
  2. Only when visibility is exactly 10 kilometers
  3. Exclusively when requested by military cargo aircraft
  4. Whenever the surface temperature drops below 0°C

Answer: A — Whenever the horizontal visibility or RVR is observed to be less than 1,500 meters

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