RBI is associated with which navigation concept?

• A. Radar Bearing Indicator
• B. Relative Bearing
• C. Relative Bearing Indicator
• D. Remote Bearing Input

Answer: (B)

The key idea is relative bearing—the angle between what your aircraft is pointing (your nose) and the line from you to a navigation aid or target. RBI refers to this concept, letting you see how far off your current heading is from the direction to a beacon or target. When you reduce this relative bearing to zero, you’re pointed directly at the station; adjusting your heading to achieve a specific relative bearing helps you intercept or track a desired line.

The other terms describe an instrument or input rather than the concept itself: a radar-specific bearing indicator conveys bearing to a radar target, while a relative bearing indicator is the instrument that displays this same relative bearing. Remote bearing input isn’t a standard aviation term. So the navigation idea being tested is the relative bearing concept.