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149 - PPL(H) Helicopter Theory Exam Questions in English - What is the reason for a puddle of water below the helicopter after a flight in summer?

Question 149 - Aircraft General Knowledge - PPL(H) - Private Pilot Licence (Helicopter)

The windshield wiper fluid has leaked
The helicopter was frozen at cruising altitude
Vapour bubbles from the fuel lines are condensed
The air conditioning was used in flight

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