Is the aircraft equipped with a supplemental oxygen system for the flight crew and passengers during emergencies.
Yes.
The system can be set for passenger masks to drop when the cabin altitude reaches?
The passenger oxygen system can be set to allow the passenger masks to drop automatically from overhead drop boxes if cabin altitude climbs above 14 500 feet.
What does the supply line from the oxygen canister contain?
The supply line from the oxygen bottle contains regulated oxygen pressure.
How can the masks be deployed?
Manually and automatically.
Where is the regulated oxygen pressure delivered to?
It is delivered to the passenger oxygen control valve and to both crew oxygen service boxes.