What color is the CABIN PRESSURE indicator?

What color is the CABIN PRESSURE indicator?

• A. Amber
• B. Green
• C. Red
• D. Blue

Answer: (C)

Color coding on cockpit indicators is used to show how urgent a condition is. Green means everything is normal, amber signals a caution that needs attention, and red denotes a fault or dangerous condition requiring immediate crew action. For the cabin pressurization system, green is shown when the system is operating within limits. If there’s a fault—such as loss of pressurization, an outflow valve issue, or the cabin differential pressure going out of permitted limits—the indicator turns red to alert you that immediate action is required and follow-up procedures must be carried out. That immediacy is why red is the correct color for the cabin pressure indicator.

Color coding on cockpit indicators is used to show how urgent a condition is. Green means everything is normal, amber signals a caution that needs attention, and red denotes a fault or dangerous condition requiring immediate crew action. For the cabin pressurization system, green is shown when the system is operating within limits. If there’s a fault—such as loss of pressurization, an outflow valve issue, or the cabin differential pressure going out of permitted limits—the indicator turns red to alert you that immediate action is required and follow-up procedures must be carried out. That immediacy is why red is the correct color for the cabin pressure indicator.