FAA Unmanned Aircraft General (UAG)

Sixty questions, weighted the way the FAA weights them.

Free Part 107 practice tests dealt in the proportions the FAA publishes, scored at 70%, and reported back as the ACS codes a real test report prints. Every fact carries the document it came from and the day it was read.

One bar per question on a 60-question test, grouped by area of operation in the bands Appendix 1 of the Airman Certification Standards publishes. Operations is 38.3% of it and Loading and performance is 8.3% — which is the argument against splitting your study time evenly.

Take a full-length mock Start with the study guide

Practise one area at a time

Untimed sets, with the explanation, the ACS code and the source document after every answer. The percentage beside each is what the FAA says that area is worth on the real test.

I 15–25% Regulations What part 107 permits, forbids and requires of the person in command 84 questions II 15–25% Airspace Which airspace you are standing under, and what it costs you to fly there 68 questions III 11–16% Weather Reading a METAR and a TAF, and what the air does to a small aircraft 41 questions IV 7–11% Loading and performance Weight, centre of gravity, load factor and what the air will actually lift 23 questions V 35–45% Operations Radio, airports, emergencies, decision-making, physiology and maintenance 77 questions

Three things this site does that the category does not

Reports ACS codes
A real Airman Knowledge Test Report gives you codes, not questions — and that list is the whole diagnostic. Every mock here reports the same codes and resolves each one to the FAA’s own sentence.
Reads the regulation, not the 2016 guide
The study guide the FAA still links is dated August 2016 and predates the amendment that rewrote night operations and added operations over people. Every rule here is cited to the current CFR, with the date it was read.
Weights the test as published
The FAA publishes a percentage band per area. The mock deals to it, and the build fails if a number drifts outside the band — so it cannot quietly stop being a mock.

What UA.I.B.K21b means

It is an ACS code, and it is what you get back on your test report instead of the questions you got wrong. It decomposes: UA the unmanned aircraft standards, I the area of operation, B the task within it, K21b the knowledge element — which in this case is “Altitude limitations”.

Every question on this site carries the code it tests, so a practice run tells you the same thing the real report will. All 176 elements are listed with the FAA’s own wording.

Browse every ACS code

Coverage

176/176

ACS knowledge elements with at least one question behind them, out of the 176 in FAA-S-ACS-10B. The number is counted from the bank, not claimed — and it is printed here because the honest thing to publish about coverage is the gap as well as the total.

293 questions · 0 elements not yet covered

Before you book the test

What changed in Part 107 in 2021

Amendment 107-8 rewrote night operations, added four categories of operations over people, and brought in Remote ID. The FAA’s own Remote Pilot Study Guide is dated 2016 and does not cover any of it.

How the Part 107 test is scored

60 questions, 120 minutes, 70% to pass — which is 42 marks. What the Airman Knowledge Test Report actually gives you back, why it is a list of ACS codes, and what it does not tell you.

The Part 107 operating limits

400 feet AGL, 87 knots, 3 statute miles visibility, 500 feet below and 2,000 feet horizontally from clouds — the limits in § 107.51, what each one actually means, and the structure exception.

Part 107 recurrent training

The recurrent knowledge test no longer exists. Aeronautical knowledge recency is maintained with a free online course — ALC-677, or ALC-515 for part 61 holders — every 24 calendar months.

Flying at night under Part 107

No waiver needed since April 2021. What § 107.29 actually requires — updated knowledge and anti-collision lighting visible for 3 statute miles — and what civil twilight means.

293 practice questions, every one written for this site and every one carrying the FAA document its facts came from. Nothing here is written from memory, including the numbers everyone knows.

Sources

Every figure on this page comes from one of the documents below, with the date it was read and what the document says about its own currency. Regulations change by amendment; where a source has moved on since the date shown, the source is right and this page is out of date.

  • 14 CFR part 107 — Small Unmanned Aircraft Systems (eCFR) Read August 27, 2026· eCFR reports title 14 up to date as of 2026-08-25 The regulation itself, and the only acceptable source on this site for an operating limit, a category, an eligibility rule or a recency rule. Amendment 107-8 (86 FR 4381, 15 January 2021) is the one that rewrote night operations and added operations over human beings.
  • FAA-S-ACS-10B — Remote Pilot – Small Unmanned Aircraft Systems Airman Certification Standards Read August 27, 2026· Material in FAA-S-ACS-10B is effective April 6, 2021 The shape of the test and the ACS codes. Appendix 1 publishes the 60-question length, the two-hour limit, the 70% passing score and the share of the test each area of operation gets. Appendix 3 publishes that a passing test report is valid for 24 calendar months.
  • AC 107-2A — Small Unmanned Aircraft Systems (small UAS) Read August 27, 2026· Dated 2/1/21 FAA guidance written against the amended rule. Used for the things the regulation implies without spelling out — what civil twilight means in practice, what a scalable preflight inspection is, how maintenance recordkeeping is expected to work.
  • FAA-G-8082-22 — Remote Pilot – Small Unmanned Aircraft Systems Study Guide Read August 27, 2026· August 2016 — predates Amendment 107-8 ⚠️ USE FOR SUBJECT MATTER, NEVER FOR A RULE. Airspace classes, METAR and TAF decoding, density altitude, load factor, physiology, radio procedure and airport data are unchanged and are sourced here. Its regulations chapter, its night rules and its silence on operations over people are all out of date, and a question sourced here on any of those is a bug.
  • FAA — Become a Certificated Remote Pilot Read August 27, 2026· Page states “Last updated: Tuesday, June 9, 2026” The certification path, and the current recurrent training courses by number: ALC-677 for any part 107 certificate holder, ALC-515 for one who also holds a part 61 certificate with a current flight review. The page states both are at no cost.

Part 107 Drills is independent practice material. It is not affiliated with, endorsed by, or authorized by the Federal Aviation Administration, PSI Services LLC, or any knowledge testing centre. Every question here is original and none is taken from any actual FAA knowledge test. Regulatory text and FAA publications are works of the United States Government and are in the public domain; where this site states a rule, it cites the section it came from and the date that section was read.