FAA 107 Physiological Effects & Pilot Fitness 1 — Questions and Answers
Question 1: Under FAA Part 107, what is the minimum waiting period after consuming alcohol before acting as remote pilot in command?
- 4 hours
- 8 hours (Correct answer)
- 12 hours
- 24 hours
Correct answer: 8 hours
FAR 107.27 prohibits acting as remote PIC within 8 hours after consuming any alcoholic beverage, commonly known as the 'bottle to throttle' rule.
Question 2: What is the maximum blood alcohol concentration (BAC) allowed for a remote pilot in command under FAA Part 107?
- 0.02%
- 0.04% (Correct answer)
- 0.08%
- 0.10%
Correct answer: 0.04%
FAR 107.27 sets the BAC limit at 0.04 percent, which is lower than the typical 0.08 percent legal driving limit.
Question 3: A remote pilot legally uses marijuana in a state that has legalized it. Under FAA Part 107, which statement is correct?
- They may fly as long as they are not visibly impaired
- They must wait 8 hours after use before acting as PIC
- They may never act as remote PIC because marijuana remains federally illegal (Correct answer)
- They may fly if a licensed physician certifies them fit to fly
Correct answer: They may never act as remote PIC because marijuana remains federally illegal
FAA regulations are federal law, and marijuana remains a Schedule I controlled substance federally, so state legality is irrelevant to FAA Part 107 compliance.
Question 4: Which over-the-counter medication is MOST likely to impair a remote pilot's ability to safely operate a UAS?
- Aspirin
- Antacids (like Tums)
- Diphenhydramine (Benadryl) (Correct answer)
- Vitamin C
Correct answer: Diphenhydramine (Benadryl)
Diphenhydramine is a first-generation antihistamine that causes significant drowsiness and impairs reaction time, making it dangerous for drone operations.
Question 5: Under FAA Part 107, a remote pilot who is taking a prescription medication should:
- Never fly while on any prescription medication
- Only fly if the medication is not a controlled substance
- Consult a physician or AME about whether the medication affects the ability to fly safely (Correct answer)
- Report the medication to the FAA before each flight
Correct answer: Consult a physician or AME about whether the medication affects the ability to fly safely
The remote pilot is responsible for self-certification of fitness, so consulting a physician about medication effects on judgment and reaction time is the correct approach.
Question 6: FAR 107.27 prohibits a remote pilot from acting as PIC while using any drug that affects the person's faculties in any way contrary to safety. Which best describes this standard?
- Only illegal drugs are prohibited
- Both legal and illegal drugs that impair safety are prohibited (Correct answer)
- Only Schedule I and II controlled substances are prohibited
- The restriction applies only if a doctor has not prescribed the drug
Correct answer: Both legal and illegal drugs that impair safety are prohibited
The regulation covers any drug — prescription, over-the-counter, or illegal — if it affects the pilot's faculties in a manner contrary to safe operation.
Question 7: Which combination would violate FAA Part 107 alcohol regulations even if both conditions individually might seem acceptable?
- Having one beer 10 hours before flying and feeling rested
- Having a BAC of 0.03% combined with feeling under the influence of alcohol (Correct answer)
- Taking ibuprofen and flying 9 hours after last drinking
- Flying in morning after drinking coffee the night before
Correct answer: Having a BAC of 0.03% combined with feeling under the influence of alcohol
Part 107 prohibits flying while under the influence of alcohol regardless of BAC level, so a 0.03% BAC combined with subjective impairment still violates the regulation.
FAA 107 Physiological Effects & Pilot Fitness 1
Under FAA Part 107, what is the minimum waiting period after consuming alcohol before acting as remote pilot in command?