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When an HF transmitter is keyed after a frequency change, the antenna tunes. A steady or intermittent tone may be heard through the audio system. While tuning, the tone can last as long as 7 seconds. If the system fails to tune:

Correct! Wrong!

The antenna is located in the vertical stabilizer.

The call system is used as a means for various crewmembers to gain the attention of other crewmembers and to indicate that interphone communication is desired. Attention is gained through the use of lights and aural signals (chimes or horn). If the flight deck calls the cabin crew, the visual signal at called position is:

Correct! Wrong!

The Cockpit Voice Recorder (CVR) can be erased by:

Correct! Wrong!

The ERASE switch is red. It will erase all four channels.

How are the communication systems controlled?

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On the Audio Control panel (ACP) the Cabin call light comes ON. It will illuminate until:

Correct! Wrong!

The Cockpit Voice Recorder in AUTO:

Correct! Wrong!

With the Captain's ACP operating in degraded mode, at that station:

Correct! Wrong!

The cockpit voice recorder uses four independent channels to record flight deck audio for _____

Correct! Wrong!

Recordings older than 120 minutes are automatically erased.

The VHF 1 antenna is located on the lower fuselage and VHF 2 is on the upper fuselage.

Correct! Wrong!

The VHF 2 antenna is located on the lower fuselage and VHF 1 is on the upper fuselage.

What is the purpose of the ALT-NORM switch on the Audio Control Panel?

Correct! Wrong!

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When the ALTN ORM switch on the Audio Control Panel (ACP) is set to ALT:

Correct! Wrong!

In the degraded mode of operation, are the ACP transmitter selectors functional?

Correct! Wrong!

If the VOICE RECORDER Switch is selected to ON:

Correct! Wrong!

Flight Attendants may be called from the flight deck, the other attendant station, or from any passenger seat or lavatory. Master call lights in the passenger cabin identify the source of incoming calls to the attendants.

Correct! Wrong!

When is the Cockpit Voice Recorder active?

Correct! Wrong!

The pilots can transmit directly over the flight interphone by using the control wheel PTT switch. Alternately, any crewmember with an ACP can transmit/receive over the flight interphone by using their related ACP and normal PTT switches. Any standard microphone may be used with the flight interphone system.

Correct! Wrong!

Cockpit Voice Recorder - When the TEST switch is pushed for _____:

Correct! Wrong!

The MASK-BOOM switch allows selection of the oxygen mask microphone or the boom microphone. The MASK-BOOM switch affects the operation of the hand microphone.

Correct! Wrong!

The MASK-BOOM switch does not affect the operationof the hand microphone.

In case of degraded audio system operation:

Correct! Wrong!

Boeing 737 MAX - Communications