Federal Aviation Regulations Practice Test

During what time should lighted position lights be displayed on an aircraft?

1. During takeoff and landing

2. From dawn to dusk

3. Sunset to sunrise

4. Only at night when visible

The correct answer is: Sunset to sunrise

Lighted position lights must be displayed from sunset to sunrise, as this is the standard requirement outlined in the Federal Aviation Regulations (FARs) for aircraft operation. These lights are essential for ensuring visibility of the aircraft during hours of darkness, helping to prevent collisions by making the aircraft more visible to others in the vicinity, especially at night. While it may be beneficial to use these lights during takeoff and landing, as well as during the day in certain conditions, the regulatory requirement specifically mandates their use from sunset to sunrise. This requirement ensures that all aircraft are consistently illuminated during the periods of reduced visibility, enhancing safety and situational awareness for both the pilot and other aircraft in that airspace. Position lights do not need to be on from dawn to dusk, which can lead to unnecessary energy consumption without contributing significantly to safety during daylight conditions. Thus, the correct answer reflects the regulation's intent to ensure that these lights are employed when they are most needed for safety.