FAA Ground School Practice Test

What does the yellow demarcation bar marking indicate?

1. A hold line from a taxiway to a runway

2. A runway holding position

3. An area for maintenance operations

4. A no-fly zone

The correct answer is: A hold line from a taxiway to a runway

The yellow demarcation bar marking serves as a visual reference to indicate the boundary between a runway and a taxiway. When it is present, it signifies to pilots that they are transitioning from a taxiway area to a runway area. This helps to clearly delineate the space and ensures that aircraft maintain proper separation when taxiing in proximity to active runways. The bar typically is used in conjunction with other markings such as hold lines, but its primary purpose is to enhance safety by preventing taxiing aircraft from inadvertently entering an active runway while also allowing for clear movement between taxiways and runways. Recognizing these markings is crucial for pilots to adhere to operational procedures and maintain situational awareness on the airport surface.