Passenger Signs and Passenger Oxygen

Question 1

Emergency Light Selector Knob

Answer 1

OFF: prevents all emergency lights from illuminating if
airplane electrical power is turned off or fails. the lights can be turned on from the FWD or AFT ATTENDANT panel.
ARMED: automatically illuminates all emergency lights if DC
buses lose electrical power or if airplane electrical
power is turned off.
ON: turns on all emergency lights.

Question 2

Attendant Call Button

Answer 2

Pressing this button sounds a single hi/lo tone chime in the passenger
cabin.

Question 3

Fasten Seat Belts Toggle Switch

Answer 3

ON: illuminates the FASTEN SEAT BELTS signs. sounds a single low tone chime in the cabin, lavatories and galleys.
OFF: turns off the FASTEN SEAT BELTS signs. sounds a single low tone chime in the cabin.
FASTEN SEAT BELTS signs will automatically turn ON whenever the
passenger mask doors are commanded open regardless of the switch
position.

Question 4

NO SMKG Switch

Answer 4

ON: illuminates the NO SMOKING signs. single low tone in the cabin.
OFF: turns off the NO SMOKING signs. single low tone in the cabin.
(b) Airplanes equipped with NO SMKG Switch
NO SMOKING signs will automatically turn ON whenever the passenger mask doors are commanded open regardless of the switch
position.

Question 5

Sterile Toggle Switch

Answer 5

ON: illuminates the amber light located in the rainbow
lights.
OFF: turns off the amber light located in the rainbow lights

Question 6

masks deploy knob
OFF:
AUTO:

OVRD:

Answer 6

OFF: disables automatic deployment of passenger oxygen masks.
AUTO: enables automatic deployment of passenger oxygen masks when cabin pressure altitude is above 14000 ft.
OVRD: deploys the passenger oxygen masks regardless of cabin altitude.

Question 7

MASK DEPLOYED INDICATOR LIGHT

Answer 7

An ON light illuminates, indicating that the passenger and flight attendant oxygen masks have been deployed.