In the warning range, the data display label and perimeter (box) will be ______________.

• A. YELLOW
• B. RED
• C. GREEN
• D. BLUE

Answer: (B)

Color-coded status on data displays is designed for fast recognition of how critical a parameter is. When a value sits in the warning range, the system uses red to highlight both the data label and the surrounding box. Red signals an urgent condition that requires the pilot’s attention and a defined response, so it stands out even under high workload.

Green typically means normal, safe operation; yellow indicates caution—something out of the ordinary but not immediately dangerous; blue is often used for informational or non-urgent cues. Seeing red around the data label and perimeter tells you the parameter is out of safe limits and action is needed per procedure or checklist.