The oxygen system has a main system that supplies flight crew and passengers. A high-pressure cylinder supplies oxygen to the distribution system. A discharge part is available in the case of overpressure only.
Correct!
Wrong!
Cabin Crew Oxygen Portable Unit - Two portable oxygen bottles are available, one at each cabin crew seat. They permit a continuous diluted flow to one cabin crew at 13 000 ft for a duration of _____. The bottles have a diluted oxygen mask.
Correct!
Wrong!
The main system provides passenger protection through a PAX SUPPLY valve. It controls flow to oxygen masks installed under the hat racks. The passenger outlets supply _____ of the passengers with a continuous diluted flow for a duration of 30 min in case of pressure drop (4 min to descend from 25 000 ft to 13 000 ft, 26 min to continue the flight between 13 000 ft and 10 000 ft) in addition to the flight crew 120 min consumption.
Correct!
Wrong!
In the cockpit, the third occupant's oxygen mask is fitted with an oxygen adapter extension in the form of a preformed spiral hose coiled in the mask stowage box. It can be used as far as the forward cargo compartment.
Correct!
Wrong!
Oxygen control unit power supply is supplied by:
Correct!
Wrong!
The quick donning masks are in accessible containers adjacent to each flight crew seat. The mask harness inflates automatically when the flight crew pulls the mask out of its container. It can easily be donned with one hand. In the case of smoke or noxious gas emission, with the oxygen diluter selector in the 100 % position, the flight crew receives oxygen for a duration of _____ at demand flow.
Correct!
Wrong!
In the case of smoke emission, the system protects the flight crew members during 15 minutes. In the case of pressure drop, with the oxygen diluter selector in the N (normal) position, the flight crew receives diluted oxygen for a duration of 120 min at demand flow (10 min to descend from 25 000 ft to 13 000 ft and continuation of flight between 13 000 ft and 10 000 ft for 110 min).
If preflight pressure is below _____, the flight crew must check that minimum oxygen quantity is available for the flight.
Correct!
Wrong!
MAIN SUPPLY Pushbutton - LO PR Comes on amber and the FWS is activated if low pressure (below 50 psi) is detected in:
Correct!
Wrong!
ATR 72 – Oxygen