COMMUNICATION

Question 1

How many MIC PTT switches does each pilot have?

Answer 1

4
Control Wheel
Audio control panel
Glareshield MIC switch
Hand MIC PTT switch

Question 2

How is the boom mic enabled after oxygen mask usage?

Answer 2

Close left O2 mask door and push RESET/TEST switch

Question 3

How many audio panels are installed on the -200/-300?

Answer 3

• 300: 4

- 200: 3

Question 4

List the different audio recorded by the cockpit voice recorder?

Answer 4

Any audio transmitted or received by the FLT deck as selected on the ACP as well as FLT deck area conversations

Question 5

Which VHF system can be used for data transmission?

Answer 5

VHF C and R systems

Question 6

When will DATA be displayed on the RTP active frequency window?

Answer 6

Provided the selected VHF radio is the default DATA radio, when a new FREQ is selected in the STBY window

Question 7

Describe the VHF radio stuck microphone protection?

Answer 7

EICAS message RADIO TRANSMIT if stuck for more than 30 sec.

On ground with both Engines off having transmitted for more than 35 seconds

Question 8

What does dashes in the RTP frequency window indicate?

Answer 8

Radio has failed or is disconnected

Question 9

Where can HF sensitivity be set?

Answer 9

On the Radio Tuning panel (RTP)

Question 10

When does the HF antenna tune?

Answer 10

When an HF transmitter is keyed after a FREQ change

Question 11

How many HF antennas are installed?

Answer 11

1, common to both HF radios

Question 12

Can both HF systems simultaneously receive from the common antenna?

Answer 12

No

Question 13

How many radio systems are monitored by SELCAL?

Answer 13

3 VHF and 2 HF

Question 14

How is a SATCOM call terminated?

Answer 14

When either party ends the call

Question 15

Which system is used to communicate with the ground engineer?

Answer 15

The FLT interphone system

Question 16

What is the purpose of the service interphone switch on the overhead panel?

Answer 16

To connect to the Flight interphone system through the service interphone switch

Question 17

What PA announcement has the highest priority?

Answer 17

FLT deck announcement from an ACP

Question 18

How is a call initiated to a flight attnedant station?

Answer 18

Select “CAB tx select switch” on an ACP and push the mic/interphone switch or call from the handset

Question 19

How is a priority call from the cabin indicated on the flight deck?

Answer 19

EICAS message “CABIN ALERT”

Question 20

How can a purser call be initiated from the ACP?

Answer 20

Press CAB transmitter select switch twice within 1 second

Question 21

What is the approximate range for a VHF signal at 35’000 ft?

Answer 21

200 nm

Question 22

What does the “V B R” selections on the ACP mean?

Answer 22

The VBR selector is the Navigation Filter Selector. It filters VOR, ADF, ILS or DME audio. V=Voice, only the voice audio is heard B=Both, both the voice and range audio are heard R=Range audio(morse code) is heard

Question 23

What does the “APP” selector on the ACP mean?

Answer 23

The APP selector is the Approach Receiver Selector and selects the approach receiver to be monitored. APP L=left ILS APP C=center ILS APP R=right ILS MKR=marker beacon

Question 24

What are the two ways you can answer a call from the cabin?

Answer 24

To take a cabin call, you can either pick up the handset and talk through it like a normal phone. You can also press the CAB call/mic button to take the call and then talk by pushing up the mic switch. There is no need to press the receiver button to listen if the speaker button is pressed. If a head set is worn, the other pilot not taking the call can listen in by either pressing the call/mic button or push the receiver button

Question 25

What is the effect of using AM button for the HF radio?

Answer 25

The HF radio always transmit in a single sideband so the AM switch only affects the received signal.

Question 26

What is the purpose of squelch and how can you turn it ON or OFF?

Answer 26

If you push and hold a Radio Tuning Switch, it removes the automatic squelch on the selected VHF radio until the switch is released. Squelch is used to suppress the sound of channel noise when the radio is not receiving a transmission. Squelch can be opened, which allows all signals entering the receiver to be heard. This can be useful when trying to hear distant or otherwise weak signals.

Question 27

What is the purpose of the “Service Interphone Switch”?

Answer 27

The service interphone system provides voice communication between ground crew stations at various locations around the aircraft. The systems can be connected to the FLT interphone system through the service interphone switch. With the switch to ON, it connects the service and FLT interphone systems.

Question 28

What is the difference between having the cockpit voice recorder switch in AUTO compared to ON when you enter the aircraft?

Answer 28

With the switch to AUTO, the cockpit voice recorder runs from first engine start until 10 min after last engine shutdown. With the switch to ON, the voice recorder runs until first engine start, then is spring-loaded to AUTO.

Question 29

What is the difference between the CAPT/NORM/FO selections on the OBS audio selector?

Answer 29

In the NORM position, the First Observer ACP is connected to the First Observers hand mic, headphone, boom mic and oxygen mask mic.
In the CAPT and F/O position, it connects the Captains/First Officers hand mic, headphone, boom mic, oxygen mask mic, speaker, and MIC/INTERPHONE switches to the First Observers ACP.