Oxygen
1. Which is the suitable statement for Pax fixed Oxygen system.
· Pax Oxygen can be activated are reset from cockpit
· Pax Oxygen can be activated and reset from cockpit
· Pax Oxygen system activates automatically in case of decompression but can be
reset only from cockpit
· Pax Oxygen system once activated (Automatically or Manually) cannot be reset.
2. What are the possible flows of oxygen through the individual quick doning full face mast in the cockpit.
· Diluted Oxygen on demand, 100% Oxygen on demand or continuously.
· Diluted Oxygen on demand or continuously, 100% Oxygen on demand only
· Diluted Oxygen on demand or continuously, 100% continuously
· Only two flows 100% Oxygen continuously, Diluted Oxygen on demand.
3. At approximately what cabin altitude should the passenger oxygen masks drop
· 10,000 feet (+100, - 500 ft)
· 12,500 feet (+ or - 500 ft)
· 14,000 feet (+0, - 500 ft)
· 15,000 feet.
4. What does an amber OXY on the ECAM Doors mean
· The crew supply switch is turned off and/or oxygen pressure is less than 400 psi.
· The crew supply switch is turned off
· Oxygen pressure is less than 650 psi.
· oxygen pressure is less than 300 psi.
5. On which ECAM page could the flight crew check the exact pressure of the oxygen cylinder
· The PRESS page.
· The DOORS page.
· The COND page.
· The STATUS page.
6. What is indicated by a missing green thermal plug during an exterior preflight
· An oxygen system overpressure or thermal discharge.
· This is normal indication, the green thermal plug only appears if the oxygen cylinder is low.
· The crew oxygen bottle is empty.
· An external fire discharge has been activated.
7. Approximately how long are the passenger oxygen generators able to produce oxygen
· 15 minutes.
· 20 minutes.
· 25 minutes.
· 30 minutes.
8. What is the main difference between the crew and the passenger oxygen system
· There is no difference: both are served by oxygen cylinders.
· Crew is supplied from an oxygen cylinder; passengers are supplied by chemical oxygen generators .
· Both the crew and passengers are supplied with oxygen from chemical oxygen generators.
· The crew has an oxygen bottle for an emergency back-up supply.
9. What happens when the mask is used with the selection at 100% position
· Mask is supplied with diluted oxygen on demand.
· Mask is supplied with undiluted oxygen on demand.
· Mask is supplied with undiluted oxygen continuous flow.
· Mask is supplied with diluted oxygen on demand.
10. What is the purpose of the CREW SUPPLY push button
· When selected to ON, it supplies oxygen to the Captain & F/O only (jumpseats are not supplied)
· When selected to ON, it allows the flow of low pressure oxygen to the crew's masks.
· In case of low cylinder pressure it allows the crew to tap into the passenger oxygen system.
11. Illumination of the SYS ON light is an indication that
· The crew must depress the MASK MAN ON pb in order to deploy the masks.
· Electrical power has been sent to deploy the masks, either manually or automatically.
· The crew oxygen cylinder is empty.
· All of the passenger masks have deployed.
· True.
· False.
13. What will depressing the guarded MASK MAN ON pb accomplish
· A signal is sent to the chemical oxygen generators to start the flow of oxygen to the masks.
· It manually sends a signal to open the oxygen mask doors.
· Both are correct.
14. When does passenger oxygen flow start
· When the mask is pulled toward the seat.
· When the oxygen doors open.
· When the oxygen button is pushed.
· When cabin altitude exceeds 14,000 ft
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