Which term describes lights that can be found both on and off an airport to identify obstructions?

Study for the Pilot's Handbook of Aeronautical Knowledge Exam. Study with flashcards and multiple choice questions, each question has hints and explanations. Get ready for your exam!

Multiple Choice

Which term describes lights that can be found both on and off an airport to identify obstructions?

Explanation:
Obstruction lights describe the lighting used to mark tall objects that could pose a hazard to aircraft. They’re installed on obstructions both on and near airports to warn pilots in all lighting conditions, helping them identify and avoid obstacles in the flight path. An outer marker is part of the approach navigation system, not obstacle lighting. Optical illusion and orientation aren’t terms used for lighting that marks hazards.

Obstruction lights describe the lighting used to mark tall objects that could pose a hazard to aircraft. They’re installed on obstructions both on and near airports to warn pilots in all lighting conditions, helping them identify and avoid obstacles in the flight path. An outer marker is part of the approach navigation system, not obstacle lighting. Optical illusion and orientation aren’t terms used for lighting that marks hazards.

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