How we build the question bank, what we will not do, and how to verify our work. Every question on the site cites its source; this page explains the pipeline behind those citations.
Sources of truth
Every question on part107drill traces back to one of the following FAA public domain documents. The source citation is shown on every question's explanation. If a citation is missing or you cannot reconcile a question with its cited source, that is a bug and we want to hear about it.
14 CFR Part 107. The federal regulation that defines small unmanned aircraft operations. Authoritative for altitude limits, speed limits, visibility minimums, registration, certificate eligibility, accident reporting, and waiver categories.
FAA Official UAG Sample Questions. The public domain sample bank the FAA publishes for candidates. We include the text-only items from this bank verbatim and label them as verbatim FAA questions.
We do not copy questions from commercial test prep products. Every non-verbatim question in our bank is drafted directly from the FAA documents above, not from another prep product, a forum post, or anyone's memory of a real exam item. See How we use AI below for the drafting and review workflow.
How a question gets into the bank
Each question goes through the same path before it appears live on the site.
Source-anchored draft. A question starts with a citation from one of the FAA documents above. We write the question stem from the regulation or study guide text, not from another prep product, not from forum posts, and not from anyone's memory of a real exam item.
Three answer choices, FAA style. The real Part 107 test uses three answer choices per question (A, B, C). We follow that format. Our distractors are written to mirror the precision errors a test-taker makes when they know the concept but not the exact rule, not random plausible-sounding wrong answers.
Plain English explanation. Every correct answer is paired with an explanation that names the originating rule or document and explains why the correct choice is correct.
Watch Out (trap) note. Most questions carry a short note on why the most common wrong choice feels tempting. The Part 107 test rewards precision, and close-but-wrong answers are the kind that catch test-takers who know the concept but not the exact rule. We surface those patterns instead of hiding them.
Pro Tip. A short memory aid or real world reframe that connects the test answer to operational judgment. The goal is that a Part 107 pilot understands the material, not just the letter.
Verification timestamp. Each question carries a verified date showing the last time an editor confirmed the answer and citation against the live FAA source.
Difficulty tag. Each question is tagged easy, medium, or hard (see Difficulty philosophy below).
Domain assignment. Each question is assigned to one of the five FAA exam domains so the bank matches the ACS test blueprint shape.
Difficulty philosophy
part107drill is a drilling tool. Our goal is that a candidate who can answer our medium tier questions reliably is, by definition, exam-ready. We deliberately do not chase a hard-question count just to look rigorous.
The bank targets roughly the following mix:
Tier
Approximate share
What it tests
Easy
~25%
Single-fact recall straight from a regulation or study guide line.
Medium
~60 to 65%
Apply a rule to a short scenario, or pick between two close-looking facts. Mastery here means exam-ready.
Hard
~10 to 15%
Multi-step reasoning, edge cases, or questions that combine two regulations.
If a topic does not have a credible hard question we can write honestly from FAA source material, we leave it at medium. We will not pad the hard tier with arbitrarily difficult or trick questions to hit a number.
Editorial rules
These are the rules we follow on every question, explanation, and article.
Authorship anchored to source, not credentials. Articles and questions are attributed to part107drill, the site itself, rather than to a named author. The authority of the content comes from the FAA source material it is built from, not from any individual writer's credentials. We do not use bylines like "by a Part 107 certificated pilot."
Complementary, not adversarial, voice toward other prep products. part107drill is the drill layer that pairs with a structured course. We will not disparage other prep products, even ones we link to as affiliates. If we recommend a course, we recommend it on its merits.
FAA transparency language. When we describe our sourcing we use the verbatim phrase "derived from FAA public domain materials" and we cite the specific document. Quiz surfaces carry an "educational purposes only, verify with FAA" disclaimer.
Free practice, no email, no account. The drill is free with no email asked and no signup. Progress is stored in the browser, with a downloadable progress file as the user's own backup.
How we use AI
part107drill is drafted with AI assistance and reviewed by hand against the FAA source materials listed in Sources of truth before publication. We use AI the way a working writer uses a research assistant: it speeds up the labor, it does not replace the judgment.
What AI does:
Produces first drafts and rephrasing options from the source documents.
Surfaces likely misreadings and ambiguous wording the FAA might use as distractors.
Helps maintain consistent voice and structure across articles and explanations.
What AI does not do:
Select which FAA documents are authoritative.
Assign difficulty tiers or domain mapping.
Push content live without a human review pass against the cited source.
Every claim on every page is reconciled with the cited FAA document before going live. If you see a sentence that reads as off, or a claim you cannot trace to a cited source, it is a bug and it gets fixed.
Bank composition
The bank currently contains 251 questions across the five FAA exam domains, weighted to mirror the ACS blueprint.
Domain
Questions
ACS exam weight
Regulations
43
15 to 25%
Airspace Classification
53
15 to 25%
Weather
38
11 to 16%
Loading & Performance
26
7 to 11%
Operations
91
35 to 45%
Total
251
Of the 251 questions, 33 are drawn verbatim from the FAA UAG sample bank and 218 are original questions written from FAA source material for part107drill. The bank grows on a rolling cadence, and every question shows the date it was last verified.
Gaps we are honest about
The Part 107 exam includes some content we do not yet cover. We name the gaps so candidates can plan their study.
Chart and figure questions. Roughly 20 to 25% of the live exam references the FAA-CT-8080-2H figure supplement (reading sectional charts, identifying airspace boundaries by coordinate, locating obstructions). These require chart images we have not yet built. SkyVector and the FAA figure supplement are the right tools for that practice today.
Full timed 60-question simulation. The daily ten is a drill, not a mock exam; nothing on the site yet enforces the live exam's 60-question, 120-minute timing.
How we handle corrections
The feedback page is the front door for question reports; every question also carries a report link. When a wrong answer or an outdated citation is identified, the fix lands quickly and the question's verified date is updated. We do not silently edit answers; the verification timestamp shows when a question was last checked.
What this site is not
part107drill is not affiliated with the FAA. We do not issue certificates. We cannot guarantee a pass. Regulations change, and the authoritative source for any current rule is the FAA itself. Always verify current rules with the FAA before operating.