Part 107 Plan

Part 107 test practice question: Weather

WeatherDifficulty 2/5

In the METAR 'KDEN 211753Z 08012G20KT 10SM SCT045 BKN110 18/M02 A3011', what is the ceiling?

  1. A4,500 ft AGL
  2. B11,000 ft AGL
  3. CNo ceiling; sky is scattered
  4. D110 ft AGL
Show answer and rationale

Correct: B. A ceiling is the lowest broken (BKN) or overcast (OVC) layer or vertical visibility. SCT045 is scattered (not a ceiling); BKN110 is broken at 11,000 ft AGL, so that is the ceiling.

  • A — Scattered layers do not constitute a ceiling.
  • C — A broken layer is present, so there is a ceiling.
  • D — Cloud heights are in hundreds of feet: 110 = 11,000 ft.

Concept being tested

11–16% of items. Weather sources (METAR, TAF), effects of density altitude, wind, temperature and humidity, fog, thunderstorms, icing, and how weather affects sUAS performance. — 14% of the exam. Study guide for Weather.

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Primary references

  1. Remote Pilot – Small Unmanned Aircraft Systems Airman Certification Standards (FAA-S-ACS-10B, April 2021) — Federal Aviation Administration (FAA) · government · retrieved 2026-09-21, verified 2026-09-21
  2. Advisory Circular 00-45H, Aviation Weather Services (METAR/TAF formats) — Federal Aviation Administration (FAA) · government · retrieved 2026-09-21, verified 2026-09-21
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