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Under the regulations, a pilot may not act as a crewmember within how long after consuming alcohol?

Choices

✓ 8 hourscorrect
The "8 hours bottle to throttle" rule applies, along with the 0.04 percent BAC limit.
2 hours
Two hours is far short of the required 8 hours.
12 hours
12 hours exceeds the minimum; the rule is 8 hours (though more is prudent).
No time limit as long as the pilot feels fine
A time limit and a BAC limit both apply regardless of how the pilot feels.

Why

A pilot may not act as a crewmember within 8 hours of consuming alcohol, while under the influence, or with a blood alcohol concentration of 0.04 percent or greater.

FAA source: 14 CFR 91.17browse the reference library →

This is taught in Personal Fitness to Fly: Alcohol, Drugs, Fatigue and IMSAFE — study the lessons free, then practice with grading and mastery tracking.

Original study question written for this course — representative of FAA knowledge-test topics, not an actual current FAA exam question.