Shared Flashcard Set

Details

747 General and Communications
updated 11/29/20
22
Aviation
Professional
10/18/2012

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Cards

Term
Which lights only work in the ground mode?
Definition
Runway turnoff and taxi lights

Landing lights go bright when the gear lever is down with the switch ON
Term
Fasten Seat Belts AUTO and OFF positions
Definition
AUTO
Landing gear not up or locked
Flap lever not up
Airplane altitude < 10,300'
Cabin altitude > 10,000'

OFF
Oxygen is ON
Term
How can emergency lighting be activated?
-400F
Definition
DC power failure
Emergency Lights switch:
-Overhead panel
-Upper deck panel regardless of overhead position
Term
How are the emergency lighting batteries powered/charged?
How long do they last?
-400F
Definition
Remote batteries
(charged by DC Bus 4)
15 minutes
Term
At what altitude do the masks automatically drop?
Definition
14,000' cabin altitude
Term
Main Deck Signaling System
Where and when does it sound?
Definition
Sounds upstairs and on main deck (-8 flashes) when:
Cabin altitude reaches 10,000'
Smoke is detected on main deck
Supernumerary oxygen ON
Main Deck Alert switch ON
Term
How can an oxygen cylinder valve that is not fully opened be identified during pre-flight?
Definition
A drop of 100 psi or greater
Term
What is the minimum oxygen pressure required for dispatch?
Definition
950 psi over land
1200 psi over water and supernumerary
Term
When can supernumerary oxygen be turned off?
Definition
Below 12,000' cabin altitude by placing the switch to RESET
Term
How is thermal relief provided for the oxygen system?
Definition
A common line for both systems provides discharge relief
Term
How long does the supernumerary system provide oxygen?
Definition
195 minutes of oxygen at 25,000'
Term
What indication do you get when oxygen is flowing, on the Oxygen Mask Panel?
Definition
Yellow cross shows on the oxygen mask panel
Term
When the mask is removed from the stowage box, when does the mask microphone activate?
Definition
When the left-hand door to the mask stowage box is opened
Term
How do you know that the oxygen supply valve is open?
Definition
White OXYGEN ON flag appears near the left-hand door of the stowage box
Term
How do you shut off oxygen after use? What else occurs?
Definition
Close the left-hand door of the stowage box
Push and release the RESET/TEST switch

Shuts off oxygen to mask, stows flag, deactivates the microphone, and activates the boom mic
Term
Where are the VHF and HF antennas located?
Definition
VHF left - top
VHF center - bottom front
VHF right - bottom rear
HF - vertical stab
Term
What if a CA or FO audio panel malfunctions?
Definition
Observer audio system selector switch on the overhead panel allows the use of the audio panel
Term
What does the Captain Audio System switch do?
Definition
Placing the switch to VHF-L directly bypasses audio systems (boom/mic, PTT switches) if a failure causes loss of communication
Term
What stuck mic protection is there on the ground? In the air?
Definition
Ground: disabled after 35 seconds of transmitting, followed by a warning beep

Air: RADIO TRANSMIT after 30 seconds of transmitting
Term
If normal electrical power is lost, what lighting is provided in the cockpit?
Definition
Floodlights operate on standby power
Term
What powers the side and nose cargo doors?
Definition
Main Deck Cargo Handling bus
Term
What is the purpose of the OBS AUDIO SYSTEM selector?
Definition
Allows Captain or FO to use the Observer's audio control panel
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