Which sign is represented by White letters on a Red background?

Which sign is represented by White letters on a Red background?

• A. Mandatory
• B. Location
• C. Direction
• D. Warning

Answer: (A)

Airport signage uses color and text to convey different kinds of instructions. White letters on a red background indicate a mandatory instruction that must be followed by pilots and ground personnel. This red background signals an important action or restriction, while the white text ensures the instruction is clearly legible at a glance, especially in high-stress or high-traffic areas like taxiways and runways. Examples include signs telling you to hold short or to follow a specific clearance. Other sign types use different color schemes—for instance, location signs are black with yellow letters, direction signs are yellow with black letters, and warning signs use a yellow background to indicate hazards. The red-on-white combination is reserved for commands that must be acted upon, rather than information about position, direction, or general caution.

Airport signage uses color and text to convey different kinds of instructions. White letters on a red background indicate a mandatory instruction that must be followed by pilots and ground personnel. This red background signals an important action or restriction, while the white text ensures the instruction is clearly legible at a glance, especially in high-stress or high-traffic areas like taxiways and runways. Examples include signs telling you to hold short or to follow a specific clearance. Other sign types use different color schemes—for instance, location signs are black with yellow letters, direction signs are yellow with black letters, and warning signs use a yellow background to indicate hazards. The red-on-white combination is reserved for commands that must be acted upon, rather than information about position, direction, or general caution.