Oxygen Systems 10

Question 1

The maximum altitude without oxygen at which flying efficiency is note seriously impaired is:

a.30,000ft

b.25,000ft

c.17,500ft

d.10,000ft

Answer 1

d.10,000ft

Question 2

In a pressure demand oxygen system:

a.oxygen demand will course the pressure to rise.

b.each member of the crew has a continuous oxygen flow.

c.each member of the crew has a regulator.

d.oxygen is supplied with a continuous pressure flow.

Answer 2

c.each member of the crew has a regulator.

Question 3

In a continuous flow oxygen system, oxygen is supplied:

a.continuously independent of users demand or cabin altitude.

b.only when the pilot breaths in.

c.only when the cabin altitude is above 14,000ft.

d.at a different pressure for different cabin altitudes.

Answer 3

a.continuously independent of users demand or cabin altitude.

Question 4

In a diluter demand system, selection of emergency on the regulator will result in:

a.100% oxygen continuous flow at positive pressure.

b.100% oxygen as called for by the user.

c.100% oxygen at positive pressure.

d.air mix supplied at emergency pressure.

Answer 4

a.100% oxygen continuous flow at positive pressure.

Question 5

If an aircraft suffers a decompression the passenger oxygen masks:

a.are released by the passengers.

b.must be removed from the life jacket stowage.

c.are handed out by the cabin crew.

d.are automatically dropped to a half-hung (ready position) if the cabin altitude is above 14,000ft.

Answer 5

d.are automatically dropped to a half-hung (ready position) if the cabin altitude is above 14,000ft.

Question 6

The colour of American and European oxygen cylinders;

a.red.

b.brown.

c.green.

d.blue.

Answer 6

c.green.

Question 7

Satisfactory operation of the oxygen system is indicated by:

a.lack of anoxia.

b.aural reassurance.

c.flow indicators.

d.pressure indicators.

Answer 7

c.flow indicators.

Question 8

If the pressurisation system fails and the cabin starts to climb above 14,000ft, oxygen will be available to the passengers by:

a.the cabin crew handing out masks.

b.portable oxygen masks located in the back of their seats.

c.masks automatically dropping to the half-hung position.

d.the passengers grabbing masks from the overhead lockers.

Answer 8

c.masks automatically dropping to the half-hung position.

Question 9

In a smoke and fumes situation the crew should select:

a.100%.

b.Nothing the regulator will take care of it automatically.

c.Off.

d.emergency on their regulator.

Answer 9

d.emergency on their regulator.

Question 10

The passenger oxygen system:

a.is always gaseous.

b.can be a chemical or gaseous system.

c.is only required on long haul flights.

d.is always chemical.

Answer 10

b.can be a chemical or gaseous system.