UAS Study Guide 2026
Everything you need to pass the UAS exam in one place: the exam format, every topic to study, real practice questions with explanations, flashcards, and full-length practice tests. Free, no sign-up needed.
📋 UAS Exam Format at a Glance
📚 UAS Topics to Study (63)
✍️ Sample UAS Questions & Answers
1. In GPS navigation, what does HDOP (Horizontal Dilution of Precision) measure?
HDOP reflects how satellite geometry affects horizontal position accuracy; a lower HDOP value means better geometric spread and higher accuracy.
2. What is the primary requirement for operating a UAS at night under Part 107?
To operate a drone at night under Part 107, the FAA requires the drone to be equipped with anti-collision lighting that is visible for at least three statute miles. This ensures the drone can be seen by other aircraft and ground personnel, significantly enhancing safety during reduced visibility conditions.
3. Which of the following airspace classifications is most commonly restricted for UAS operations without prior authorization?
Class B airspace surrounds the busiest airports and is highly controlled due to the volume of manned aircraft traffic. Operating a UAS in Class B airspace almost always requires specific authorization from Air Traffic Control (ATC) to ensure the safety of all aircraft and prevent conflicts.
4. What does a visual inspection of motor mounts primarily check for?
Motor mount inspections focus on loose fasteners, cracks, and vibration damage because compromised mounts can cause motor separation during flight.
5. A mission requires operating within 5 miles of an airport that lacks an operating control tower. Under Part 107, what must the pilot do before flight?
Under 14 CFR 107.43, pilots must give prior notice to the airport operator when flying within 5 miles of a non-towered airport.
6. A wildfire agency wants to use a drone to drop fire retardant on a hotspot. Under current FAA regulations, this operation primarily requires the drone to carry what?
Dropping objects from a UAS requires that no hazard is created to persons or property below, and operations typically rely on an approved payload release mechanism.