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Avionics PP 2 > Test 2 Review > Flashcards

Test 2 Review Flashcards

LEARN DIS SHIZ

1
Q

What are the sub-systems for AIS?

A 
Flight Inter-phone
Cabin Inter-phone
Service Interphone
Passenger Address
Passenger Entertainment
Ground Crew Call System
Cockpit Voice Recorder
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2
Q

Purpose of Flight Interhpone?

A

Allows flight deck to communicate electronically with one another + ground crew

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3
Q

Purpose of Cabin Interphone?

A

Allows flight deck + cabin crew to communicate

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4
Q

Purpose of Service Interphone?

A

communication between COCKPIT, FA stations, and MAINTENANCE

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5
Q

Purpose of Passenger Entertainment Systems?

A

Allows showing of moving/music

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6
Q

Purpose of ground crew call system?

A

Allows flight crew + ground crew to attract each others attention

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7
Q

What type of communication systems are inter-phone systems?

A

Hard Wired

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8
Q

What are the 2 types of Interphone systems?

A

Flight + Service

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9
Q

Who gets access to the Flight Inter phone system?

A

Available for each position in the cockpit, and possibly at the External Power Panel + Avionics Bay

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10
Q

At what scenario would you use the Flight Interphone?

A

During excessive noise or when flight crew wears O2 masks

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11
Q

MEL’s identify Flight Interphones as?

A

A “NO GO” item

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12
Q

Cabin + Maintenance Interphones are?

A

Part of the Service Interphone

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13
Q

What are some the issues of Maintenance Interphones?

A

Contamination + located at high vibration areas

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14
Q

What does the MEL say about Service Interphones?

A

Can be “INOP” as long as PA System is serviceable

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15
Q

Purpose of PA system?

A

Enables the broadcasting of audio messages and announcements in the passenger cabin

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16
Q

PA system order of priority is?

A
  1. Cockpit
  2. FA Stations
  3. Pre-Recorded Announcements
  4. Entertainment
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17
Q

Where is the “Chime Gen.” located?

A

PA Amps

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18
Q

At what circumstances are chimes heard over the PA?

A

Crew Call, Lav/PA call, Ordinance Signs change of status

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19
Q

In “Auto” mode, what are seat belt signs controlled by?

A

Flap position

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20
Q

How can PA volume control be adjusted?

A

Maintenance on amp, oil pressure, cabin depressurization

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21
Q

PA audio is supplied to the cabin by what?

A

Sub-multiplexers

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22
Q

Crew Call System provides?

A

Chimes + Lights, horn for Ground Crew at Nose Wheel Well

23
Q

What does Multiplexing provide?

A

Weight saving

Multiple channels of audio through 1 wire

24
Q

Video/ Audio are injected into the?

25
Q

Main MUX feeds?

A

Sub MUX at each passenger cabin

26
Q

Sub MUX feeds?

A

several columns of Decoder/Encoder units

27
Q

Decoder/Encoder units typically feed?

A

2-4 Passenger Control Units

28
Q

What is the purpose of an ELT?

A

Automatically transmit a radio signal which Search and Rescue crews use to locate crash site

29
Q

Frequency of Operation of ELT?

A

121.50 MHZ, 243.00 MHZ, 406 MHZ

VHF line of sight transmission

30
Q

Modes of Operation for ELT?

A

ON/OFF/AUTO or ON/OFF/ARM

In auto/arm mode, a “G Switch” will activate transmitter upon impact

31
Q

What are the Components of an ELT System?

A

Transmitter at crash survivable area
Antennas
Note the Direction of Flight Arrow

32
Q

Steps when testing an ELT?

A

Tune VHF Com to 121.50 MHZ
Turn “ON” for a few seconds, and listen for audio on VHF Com
Only test during the first 5 minutes of the hour
If possible, notify ATC prior to testing

33
Q

Purpose of CVR?

A

records cockpit audio for the purpose of accident/incident investigation

34
Q

How many channels and what audio tools used for CVR?

A

Four channels are used to record audio from an “AREA MICROPHONE” and the “AUDIO SELECTOR PANELS

35
Q

A CVRs continuous loop tape will record for?

36
Q

CVR bubble memory chip will record for?

37
Q

What does the control head contain and where is it located?

A

Contains “cockpit area mic” and located on the overhead instrument panel + TEST + Bulk Erase

38
Q

CVR Bulk Erase activation?

A

on the ground (WOW)

parking brake in ‘Set”

39
Q

Testing the CVR?

A

on control head + recorder unit

use headphones for quality confirmation

40
Q

CVR location?

A

Survivable area, aft

41
Q

Purpose of FDR?

A

The FDR on board the aircraft records many different operating conditions of the flight.

42
Q

What do you use to record FDR?

A

Old: Foil tape + stylus
New: Digitial
25hrs

43
Q

How is FDR activated?

A

Engine oil pressure

WOW sensing

44
Q

CVR and FDR are both equipped with?

A

ULB for overwater accident

45
Q

This equipment is also known as a “pinger”?

46
Q

ULB frequency?

47
Q

ULB depth transmission?

A

14000-20000 feet

48
Q

Battery life of CVR/FDR?

A

6 years on the shelf

30 days in operation

49
Q

Are flight and service intercom interchangeable?

A

Yes they are, it is a box amp in the Avionics bay

50
Q

If the main multiplexer dies what happens?

A

no one will be able to hear the cockpit

51
Q

How often to calibrate the ELT?

A

Once a year

52
Q

Advantage of 406MHz compared to 121.5MHz?

A

Can send more info, anywhere (SARSAT)

53
Q

What gathers all of the info for the FDR?

Avionics PP 2 (10 decks)

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