What is the minimum required separation between multiple marshal radials?

Answer: B — 30 degrees

The minimum required separation between multiple marshal radials is 30 degrees. This standard ensures that there is adequate separation to prevent confusion and potential conflict between aircraft that may be following different radials for holding patterns during approach to the airport. With a separation of 30 degrees, air traffic controllers can effectively manage multiple aircraft by providing clear and distinct paths, enhancing safety and efficiency in busy airspace. Increasing the angle of separation beyond this minimum can provide additional safety margins, but 30 degrees is the established baseline to maintain operational efficiency while ensuring that pilots can navigate without ambiguity in instructions. This practice reflects the standards set by aviation authorities to promote safe air traffic management.