Which switch is used to manually activate the Emergency Lights from the flight deck?

Which switch is used to manually activate the Emergency Lights from the flight deck?

• A. DC SHED ESS BUS
• B. STROBE SWITCH
• C. F/A switch
• D. Cabin Interphone switch

Answer: (C)

Activating the emergency lighting from the flight deck is done with the F/A switch. This switch provides a direct control path to the emergency lighting circuit, allowing the crew to energize cabin and exit-path lighting for evacuation or poor visibility, even if normal power has failed. The emergency lighting on the A320 is designed to come on automatically in electrical faults, but the F/A switch gives a manual means to ensure lighting is available when needed. The other options do not energize the emergency lighting: the DC shed essential bus deals with power distribution, the strobe switch controls exterior lights, and the cabin interphone switch handles crew communication.

Activating the emergency lighting from the flight deck is done with the F/A switch. This switch provides a direct control path to the emergency lighting circuit, allowing the crew to energize cabin and exit-path lighting for evacuation or poor visibility, even if normal power has failed. The emergency lighting on the A320 is designed to come on automatically in electrical faults, but the F/A switch gives a manual means to ensure lighting is available when needed. The other options do not energize the emergency lighting: the DC shed essential bus deals with power distribution, the strobe switch controls exterior lights, and the cabin interphone switch handles crew communication.