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Home > Exam Questions > EASA PPL(A) - Private Pilot Licence (Aeroplane) > Aircraft General Knowledge > Which statement about vacuum-driven instruments is correct for a PPL(A) pilot?

227 - EASA PPL(A) Theory Exam Questions in English - Which statement about vacuum-driven instruments is correct for a PPL(A) pilot?

Question 227 - Aircraft General Knowledge - EASA PPL(A) - Private Pilot Licence (Aeroplane)

The associated attitude and heading indicators remain reliable until they stop moving completely.

The magnetic compass necessarily fails at the same time as a vacuum-driven gyro.

A normal airspeed indication proves the vacuum-driven gyros are serviceable.

A vacuum failure can make associated gyro instruments unreliable

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