Oxygen-Emergency Equipment-Lighting Flashcards
Normal oxygen pressure at 21ºC for the crew oxygen bottles?
1850PSI
At what pressure will the oxygen be vented overboard?
2600PSI
How can the avionics bay and nose wheel compartment lights be turned off by the crew?
Toggle the light switch twice in a 3 second period
When do the pax masks deploy when the PASSENGER OXYGEN selector set to NORMAL?
14,500 ft cabin altitude(+500ft / -750ft)
Precautions required prior to discharging a fire extinguisher in the cockpit?
Don oxygen masks, 100% PUSH selected
Reason for avionics bay and nose wheel compartment lights flash for 10secs after 15mins of operation and then remain on?
To provide an indication of lighting auto shutoff in 5mins
Indication to crew when the oxygen quantity drops to or below 75%?
OXYGEN LO QTY caution message (approx 1400PSI)
Purpose of green disc installed on left side of the fuselage?
If missing, visual indication that oxygen has been vented overboard
Conditions for cabin seatbelt light illumination when SEAT BLTS switch set to AUTO?
Landing gear down, flaps not zero, or cabin altitude > 8000ft
Number of oxygen bottles of crew oxygen system?
4
Type of portable fire extinguisher located in the cockpit?
Handheld Halon 1211
Emergency light activation when EMER LIGHTS switch set to ARM?
When there is no power to the DC essential bus
How is nose wheel compartment light controlled?
Switch on forward external service panel or when any of the switches in avionics bay selected
What protection provided if compartment light is left on?
All lights in the avionics bay, nose wheel bay and APU compartment are auto off to protect the avionics battery (20 min)
Is the cargo door considered an emergency exit?
No
