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398 - Gas Balloon Pilot Exam BPL - How does a gas react when released from a pressurized container?

Question 398 - Principles of Flight (Balloon) - Exam BPL Gas - Balloon Pilot License

The gas heats adiabatically due to expansion
The gas cools adiabatically due to expansion
The gas condenses inside the envelope
The gas cools due to thermal contact with environmental air

Training tests and timed exam simulations Exam BPL Gas - Balloon Pilot License