82 questions covering 14 CFR part 107 — ACS Area I, the single largest slice of the FAA knowledge test at 48%. Every answer cites its ACS code and exact source page, and both wrong answers are explained.
To which of the following does 14 CFR part 107 apply?
Why: 14 CFR § 107.1(a) states that part 107 applies to the registration, airman certification, and operation of civil small unmanned aircraft systems within the United States (with limited exceptions in § 107.1(b)).
Assumes part 107 covers all commercial drone activity without exception, but § 107.1(b)(1) specifically excludes air carrier operations from part 107.
Assumes an airworthiness-certificated small UAS still falls under part 107, but § 107.1(b)(4) excludes operations conducted under part 91 with an aircraft that holds a part 91 airworthiness certificate.