Part 107 Plan

Part 107 test practice question: Operations

OperationsDifficulty 3/5

How long does it typically take for the eyes to adapt fully to darkness for night operations?

  1. AAbout 30 minutes
  2. BAbout 2 hours
  3. CAdaptation is instantaneous
  4. DAbout 5 minutes
Show answer and rationale

Correct: A. Full dark adaptation of the rods takes roughly 30 minutes and is lost in seconds when exposed to bright white light; use dim red light and off-center viewing at night.

  • D — 5 minutes gives only partial adaptation.
  • B — Adaptation is complete well before 2 hours.
  • C — Adaptation is a gradual chemical process.

Concept being tested

35–45% of items — the largest area. Radio communications and airport operations, emergency procedures, aeronautical decision making and CRM, physiology (fatigue, hyperventilation, drugs), maintenance and preflight inspection, night operations and anti-collision lighting. — 38% of the exam. Study guide for Operations.

Related questions

Practice this topic

Blueprint-mapped questions with full rationales for every choice.

Start practice

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
Draft — pending editorial reviewHow we verify facts