Which color is commonly used to indicate hazard on LZ markings?

• A. White
• B. Blue
• C. Red/Orange
• D. Green

Answer: (C)

Hazard areas are marked with colors that grab attention and signal danger. Red and orange are used because they contrast strongly with most backgrounds and are universally associated with warning and caution. This makes hazardous zones around the LZ instantly recognizable to pilots and ground crews, reducing the chance of entering a dangerous area. White typically outlines boundaries, blue is often used for information or safety-related markings, and green marks safe or approved zones, so they don’t convey the urgent warning that red or orange does. That’s why red/orange is commonly used to indicate hazard on LZ markings.