According to CS25, a CVR (Cockpit Voice Recorder) must record: 

 1 - communications transmitted from or received in the aeroplane by radio 

 2 - communications of flight-crew members on the flight deck via the area microphone 

 3 - communications of flight-crew members on the flight deck using the aeroplane's interphone system 

4 - audio signals identifying navigation or approach aids introduced into a headset or speaker 

 The combination that regroups all of the correct statements is:

For internal communication with the memory, the CPU makes use of.

Which of the following must a Cockpit Voice Recorder record?

 1. Audio or voice signals identifying navigation or approach aids introduced into a headset or speaker.

 2. The aural environment of the flight deck.

 3. Flight-crew members on the flight deck using the aeroplane's interphone system.

 4. Flight-crew members using the aeroplane's interphone system between cabin crew stations (if installed).

 5. Voice communications transmitted from or received in the aeroplane by radio.

 6. Flight-crew members on the flight deck using the public address system (if installed).

Vfe is the maximum speed:

How does the Flight Warning Computer assist the flight crew regarding engine parameters?

Which of the following is correct regarding the maximum operating Mach number (Mo)?

The GPWS automatically provides distinctive warning to the flight crew in case of:

1 – impeding stall

The combination that regroups all of the correct statements is:

For most radio altimeters, what happens when a system error occurs during approach?

Which of the following does the stall warning system use as inputs?