Question Bank - Airbus A320

Oxygen

XVII of XVIII

Q 01: On which ECAM page could the flight crew check the exact pressure of the oxygen cylinder?

A: The PRESS page.

B: The DOORS page.

C: The COND page.

D: The STATUS page.

Q 02: What is indicated by a missing green thermal plug during an exterior preflight?

A: An oxygen system overpressure or thermal discharge.

B: This is normal indication, the green thermal plug  only appears if the oxygen cylinder is low.

C: The crew oxygen bottle is empty.

D: An external fire discharge has been activated.

Q 03: Approximately how long are the passenger oxygen generators able to produce oxygen?

A: 15 minutes.

B: 20 minutes.

C:25 minutes.

D: 30 minutes.

Q 04: What is the main difference between the crew and the passenger oxygen system?

A: There is no difference: both are served by oxygen  cylinders.

B: Crew is supplied from an oxygen cylinder;  passengers are supplied by chemical oxygen generators .

C: Both the crew and passengers are supplied with oxygen from chemical oxygen generators.

D: The crew has an oxygen bottle for an emergency back-up supply.

Q 05: What is the purpose of the CREW SUPPLY push button?

A: When selected to ON, it supplies oxygen to the Captain & F/O only (jumpseats are not supplied)

B: When selected to ON, it allows the flow of low pressure oxygen to the crew’s masks.

C: In case of low cylinder pressure it allows the  crew to tap into the passenger oxygen system.

Q 06: What happens when the mask is used with the selection at 100% position?

A: Mask is supplied with diluted oxygen on demand.

B: Mask is supplied with undiluted oxygen on demand.

C: Mask is supplied with undiluted oxygen continuous flow.

D: Mask is supplied with diluted oxygen on demand.

Q 07: At approximately what cabin altitude should the passenger oxygen masks drop?

A: 10,000 feet (+100, - 500 ft)

B: 12,500 feet (+ or - 500 ft)

C: 14,000 feet (+0, - 500 ft)

D: 15,000 feet.

Q 08: What does an amber OXY on the ECAM Doors mean?

A: The crew supply switch is turned off and/or oxygen pressure is less than 400 psi.

B: The crew supply switch is turned off

C: Oxygen pressure is less than 650 psi.

D: Oxygen pressure is less than 300 psi.

Q 09: Illumination of the SYS ON light is an indication that:

A: The crew must depress the MASK MAN ON pb in order  to deploy the masks.

B: Electrical power has been sent to deploy the  masks, either manually or automatically.

C: The crew oxygen cylinder is empty.

D: All of the passenger masks have deployed.

Q 10: There are oxygen generators in each aircraft’s galley.

A: True.

B: False.

Q 11: What will depressing the guarded MASK MAN ON pb accomplish?

A: A signal is sent to the chemical oxygen generators to start the flow of oxygen to the masks.

B: It manually sends a signal to open the oxygen mask doors.

C: Both are correct.

Q 12: When does passenger oxygen flow start?

A: When the mask is pulled toward the seat.

B: When the oxygen doors open.

C: When the oxygen button is pushed.

D: When cabin altitude exceeds 14,000 ft'