Pilot Exam Coach

US Private Pilot

Switch to Canada PSTAR
Aeromedical factorsQuestion 873 of 934

How should a pilot carry dry ice in an airplane?

  1. In a sealed, leak-proof container to keep the gas in
  2. In a vented container that lets the gas escape
  3. In a closed bag near the flight deck vents
  4. In a sealed container under the pilot's seat
Show answer

Correct answer: In a vented container that lets the gas escape

Dry ice sublimates into CO2 gas that displaces oxygen. A sealed container can explode.

Source: Pilot's Handbook of Aeronautical Knowledge (FAA-H-8083-25C), Chapter 17: Aeromedical Factors — Hypoxia, page 425

Practice aeromedical factors

Questions last reviewed: 18 October 2026