Which type of control assigns safety of flight responsibility to the controlling authority?

• A. Advisory
• B. Close
• C. Positive
• D. Broadcast

Answer: (C)

Positive control is the mode that assigns safety of flight responsibility to the controlling authority. In this approach, the controller actively manages aircraft trajectories, issues clearances, and monitors to maintain required separations, taking on the duty to prevent conflicts. Pilots follow those clearances, and the controller’s actions are the basis for safe operation.

Advisory service only provides information and recommendations, with pilots retaining responsibility for separation. Broadcast means information is spread to many users and does not assign safety responsibility to the controller. The term close isn’t the standard way to describe a control method that transfers safety responsibility.