Free Part 107 practice test
Ten questions with answers. Updated November 2, 2026.
These questions come from the Sentra Response Part 107 app. Pick an answer for each one, then open the answer to check it: you get the explanation, why the other choices are wrong, and the rule it comes from.
The real FAA test, Unmanned Aircraft General – Small (UAG), has 60 questions, a two-hour limit and a 70% passing score. See how the Part 107 test works.
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1. What is the maximum groundspeed for a small UA?
- 87 knots
- 100 knots
- 87 miles per hour
Show the answer
Answer: A. 87 knots
The groundspeed limit is 87 knots, which is 100 miles per hour.
- B. 100 knots: That's the mph number with the knots unit. The limit is 87 knots, or 100 miles per hour. 100 knots would be about 115 mph.
- C. 87 miles per hour: That's the knots number with the mph unit. 87 miles per hour is only about 76 knots. The limit is 87 knots, which is 100 mph.
The trap answer is B. Students remember both 87 and 100 and pair them with the wrong units.
Memory trick: 100 on the car dash, 87 on the boat. Miles per hour for cars, knots for boats and aircraft.
Source: 14 CFR 107.51(a)
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2. Within how many days must a remote PIC report a qualifying accident to the FAA?
- 10 business days
- 30 calendar days
- 10 calendar days
Show the answer
Answer: C. 10 calendar days
A remote PIC must report a qualifying accident to the FAA no later than 10 calendar days after the operation. §107.9 is titled Safety event reporting; it's the same accident report.
- A. 10 business days: The count is calendar days. §107.9 allows 10 calendar days, weekends included.
- B. 30 calendar days: That's the certificate's address-change deadline. Accidents must be reported within 10 calendar days. 30 days is how long §107.77 gives a remote pilot to report a new mailing address.
The trap answer is A. Students remember 10 but assume weekends don't count.
Memory trick: Serious injury, knocked out, or over $500 to anything but the drone. Hit any one and the FAA hears from you within 10 days.
Source: 14 CFR 107.9; 14 CFR 107.9; 14 CFR 107.77(c)
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3. Your small UA clips a parked delivery van worth about $30,000. The shop's estimate is $430 for parts and $90 for labor. No one is hurt. Must you report this to the FAA?
- Yes. The $520 repair is over $500.
- No. The $430 in parts is under $500.
- Yes. The $30,000 van is over $500.
Show the answer
Answer: A. Yes. The $520 repair is over $500.
Damage to other property is reportable when repairing or replacing it would cost more than $500, using the lower figure. Parts and labor both count. Here the repair is lower: $430 plus $90 is $520, so you must report it.
- B. No. The $430 in parts is under $500.: Labor counts too. §107.9 counts the cost of repair including materials and labor. $430 in parts plus $90 in labor is $520, which is over $500.
- C. Yes. The $30,000 van is over $500.: The van's value isn't the test. Use the lower of the repair cost and the replacement cost. A $100 scratch on this van wouldn't need a report. Here the $520 repair is over $500.
The trap answer is B. Students compare only the parts bill with $500 and leave out the labor.
Memory trick: Serious injury, knocked out, or over $500 to anything but the drone. Hit any one and the FAA hears from you within 10 days.
Source: 14 CFR 107.9(b)(1); AC 107-2A 4.4
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4. How long after drinking an alcoholic beverage must a remote PIC wait before flying a small UA?
- 8 hours
- 4 hours
- 12 hours
Show the answer
Answer: A. 8 hours
§107.27 applies §91.17, which bars flying within 8 hours after drinking any alcoholic beverage.
- B. 4 hours: That's too short. §91.17 sets 8 hours after any alcoholic beverage.
- C. 12 hours: That's longer than the rule. The AIM advises 12 to 24 hours as good practice, but §91.17 sets 8 hours.
The trap answer is C. Students mix the regulation up with the longer waits recommended as good practice.
Memory trick: 8 hours bottle to throttle, and under .04. Pass both, and don't fly impaired.
Source: 14 CFR 91.17(a)(1); AIM 8-1-1; 14 CFR 107.27
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5. In which airspace does a small UA need prior authorization from ATC?
- Class G airspace below 400 feet AGL
- Within 5 miles of any airport
- Class B, C, D, and Class E surface areas
Show the answer
Answer: C. Class B, C, D, and Class E surface areas
ATC authorization is required in Class B, C and D airspace. It's also required in the surface area of Class E airspace designated for an airport.
- A. Class G airspace below 400 feet AGL: Class G is uncontrolled. No ATC authorization is needed there. It's required in Class B, C and D airspace and Class E surface areas.
- B. Within 5 miles of any airport: Distance isn't the test. §107.41 is based on airspace class: B, C, D, and the surface area of Class E designated for an airport.
The trap answer is B. Older hobby rules used a 5-mile radius around airports, and many students still remember it.
Memory trick: B, C, D and surface E: ask first. G, or E that starts above the ground: go.
Source: 14 CFR 107.41
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6. Midway through a survey, you notice the UA drifting off its planned track as the wind builds. Under the DECIDE model, you've detected a problem. What is the next step?
- Estimate the need to react
- Choose a course of action
- Do the necessary actions
Show the answer
Answer: A. Estimate the need to react
DECIDE stands for Detect, Estimate, Choose, Identify, Do and Evaluate. After detecting the drift, estimate how serious it is and how quickly you need to react.
- B. Choose a course of action: That's step three. Before choosing a course of action, estimate the need to react: how serious the drift is and how much time you have.
- C. Do the necessary actions: That's step five. Acting comes after you estimate, choose and identify solutions. Right after detecting the drift, estimate the need to react.
The trap answer is B. Students jump from spotting a problem to picking a fix, skipping the step that sizes it up.
Memory trick: DECIDE: Detect, Estimate, Choose, Identify, Do, Evaluate.
Source: PHAK ch. 2; AC 107-2A A.2.6
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7. Ten days before a bridge inspection, you check NOTAMs and find none for the site. When should you check them again?
- Again shortly before the flight
- Not again, since none apply to the site
- Once more, 7 days before the flight
Show the answer
Answer: A. Again shortly before the flight
NOTAMs may be issued up to 7 days before an activity starts, so a check 10 days ahead can't show them. AC 107-2A says the remote PIC must check NOTAMs before each flight. Check again shortly before you fly.
- B. Not again, since none apply to the site: None yet isn't none. NOTAMs may come out up to 7 days before an activity starts. A check 10 days ahead misses them, so check again before you fly.
- C. Once more, 7 days before the flight: Seven days is the earliest, not the last. NOTAMs may come out up to 7 days ahead, and they carry time-critical information. AC 107-2A says to check NOTAMs before each flight.
The trap answer is B. Students treat one clean NOTAM check as good for the whole job.
Memory trick: No NOTAM check, no flight. TFRs pop up like road closures.
Source: AIM 5-1-3; AIM 5-1-3; AC 107-2A 5.10.3; AC 107-2A 5.10.3
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8. Which statement correctly defines Class G airspace?
- All airspace from the surface to 1,200 feet AGL
- Airspace not designated as Class A, B, C, D or E
- All airspace from the surface to 400 feet AGL
Show the answer
Answer: B. Airspace not designated as Class A, B, C, D or E
Class G is the airspace not designated as Class A, B, C, D or E. It extends from the surface to the base of the overlying Class E, wherever that is.
- A. All airspace from the surface to 1,200 feet AGL: That's only a common Class E floor. Class E may begin at the surface, 700 feet AGL, 1,200 feet AGL or higher. Class G is the airspace not designated Class A to E.
- C. All airspace from the surface to 400 feet AGL: That's the small UA altitude limit. Class D and Class E surface areas reach the ground, so not all low airspace is Class G. Class G is the airspace not designated Class A to E.
The trap answer is C. Drone pilots often equate the 400-foot limit with "drone airspace" and call it Class G.
Source: AIM 3-3-1; RPSG ch. 2; RPSG ch. 2
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9. How does high density altitude affect the propellers of a battery-powered small UA?
- No change, since electric motors don't use air
- Less thrust, since there's less air to work with
- More thrust, since thin air causes less drag
Show the answer
Answer: B. Less thrust, since there's less air to work with
High density altitude means thin air. It reduces thrust because there's less air for the propeller to work with, and it reduces lift. Performance drops whatever turns the propeller.
- A. No change, since electric motors don't use air: The propeller still needs air. Whatever turns it, a propeller in thin air has less air to work with. Thrust and lift both drop.
- C. More thrust, since thin air causes less drag: Thin air cuts thrust. There's less air for the propeller to work with, so thrust goes down. Higher density altitude decreases performance.
The trap answer is A. Students learn that density altitude cuts engine power and assume electric aircraft are immune.
Memory trick: High, hot and humid hurt. Each H makes the air thinner and the drone weaker.
Source: AWH ch. 8; AWH ch. 8; AWH ch. 8
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10. You plan to add a payload to your small UA. Whose weight and balance limits should you follow when you load it?
- The FAA's, as printed on the registration certificate
- Part 107's, which allow any load under 55 pounds total
- The ones set by its manufacturer or builder
Show the answer
Answer: C. The ones set by its manufacturer or builder
AC 107-2A says to closely follow the weight and balance restrictions set by the manufacturer or the builder. Compliance with them is critical to flight safety.
- A. The FAA's, as printed on the registration certificate: Registration doesn't set load limits. Weight and balance restrictions are established by the manufacturer or the builder, and they should be closely followed.
- B. Part 107's, which allow any load under 55 pounds total: That's the definition of a small UA. Under 55 pounds makes it a small UA under §107.3. Your aircraft's own weight and balance limits come from its manufacturer or builder.
The trap answer is B. Students treat the 55-pound definition as the only weight limit that applies.
Source: AC 107-2A B.2.1; 14 CFR 107.3
Keep going in the free app
The Sentra Response Part 107 app gives you 150 questions and a full 60-question practice test free, scored like the real one, with Scout flagging trap answers before you check. The full course has 1,109 questions, including 244 on sectional charts.
These are original practice questions written from 14 CFR part 107, FAA advisory circulars and FAA handbooks. They are not the questions on the real test: the FAA doesn't publish those.