How often must the words "DANGER AREA" be repeated around the close-in weapons system danger circle?

The correct choice indicates that the words "DANGER AREA" must be repeated every 15 feet around the close-in weapons system danger circle. This requirement is essential for ensuring the safety of personnel and equipment near the weapons systems aboard an aircraft carrier. The consistent placement of signage at this interval helps to maintain awareness of the potential hazards associated with the operation of close-in weapon systems.

This spacing is crucial because it effectively communicates the danger zone to personnel navigating the area, ensuring they remain alert and adhere to safety protocols. Effective safety signage contributes to preventing accidents and maintaining a secure environment on the ship, particularly in high-risk areas such as those surrounding weapons systems. The frequency specified by this requirement ensures that the warning is clear and continuous, reinforcing the need for caution in proximity to these dangerous operational zones.