Cadet Competition Written Practice Exam

What color lights are typically used for taxiways?

1. Red

2. White

3. Blue

4. Green

The correct answer is: Blue

Taxiways are typically marked with blue lights, which serve to indicate the path that aircraft should take when moving on the ground, either to reach the runway or to navigate to the terminal area. The blue color is standardized according to international aviation regulations and is easily distinguishable from the white lights used for runways. This differentiation is crucial for pilots, as it helps them to identify taxiways quickly and accurately, minimizing confusion during ground operations. The use of blue lights is particularly effective at night or in low-visibility conditions, creating a clear and safe navigation path for aircraft. Other colors, such as red and green, have specific meanings and applications, with red often used for indicating obstructions and green associated with runway threshold lights. However, for taxiways specifically, blue is the recognized standard.