Taxiway centreline lights on a taxiway other than an exit taxiway shall be fixed lights showing which color?

• A. Green
• B. Blue
• C. White
• D. Yellow

Answer: (A)

The main idea is how taxiway lighting uses color to guide pilots. Taxiway centerline lights are green and are steady (fixed) to mark the path along the center of the taxiway so you can follow it reliably, especially in low visibility. This green centerline runs the length of the taxiway, distinguishing it from other lighting it might encounter: blue edge lights outline the taxiway, and white lights mark a runway centerline. Yellow isn’t used for the taxiway centerline. Since the question specifies a taxiway that isn’t an exit taxiway, the established color for the centerline is green, making it the correct choice.