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Module 11A Cat B1 Oxygen Flashcards | StudBud
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Module 11A Cat B1 Oxygen
Module 11A Cat B1 Oxygen
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EASA 66 Module 11A Cat B Oxygen
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26 cards
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Questions
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Answers
1
If an O2 system is leaking, where would you most likely find the cause.
Thermal relief valve.
Breathing mask.
Loose connection.
2
Rate of flow of oxygen is given in.
Litres/pounds.
Pounds/minute.
Litres/minute.
3
In a diluter demand oxygen system.
Oxygen is supplied with a continuous pressure flow.
Each member of the crew has a continuous oxygen supply.
Each member of the crew has a regulator.
4
Pressure breathing systems must be used at altitudes.
Below 40,000 ft.
Above 40,000 ft.
Above 30,000 ft.
5
If an aircraft suddenly drops pressure at 14, 000 ft.
Passenger must get mask from overhead stowage.
Attendant must drop masks.
Masks drop automatically.
6
Oxygen bottle test and working pressures can be found.
Stamped on the neck ring.
Stamped on a metal label.
Stencilled on the bottle.
7
Portable O2 diluter demand valve works when.
Less than 500 psi is in bottle.
100% is selected.
The user breathes in.
8
What is the principle of an O2 generator.
Sodium Chlorate & iron mixed by a mechanical detonator.
Sodium Chloride and iron mixed by an electronic detonator.
Sodium Chlorate & iron mixed by an electronic detonator.
9
Oxygen cylinders are normally fitted with.
Oxygen purity gauge.
Pressure & quantity gauges.
Temperature gauge.
10
If oxygen is not being supplied in normal flight conditions, the cabin altitude must be.
At or below 8,000 ft.
At a maximum of 12,000 ft.
below 10,000 ft.
11
A chemical oxygen generator has a supply duration of at least.
5 minutes.
15 minutes.
30 minutes.
12
A demand regulator on a portable O2 bottle opens.
All the time.
When breathing.
When 100% selected.
13
Oxygen filters are made of.
Sintered bronze
Carbon fibres.
Steel wool.
14
Dangerous pressure rise in oxygen cylinders.
Is relieved by a thermostat.
Is relieved by a bursting disc.
Is relieved by under pressurising the bottle.
15
In a continuous flow oxygen system, oxygen is supplied.
When the mask is plugged into the socket.
Only when the supply has been regulated by the pilot.
On passenger inhaling into the mask.
16
A discharged chemical generator is indicated by.
A protruding pin.
A broken tell-tale wire.
A change in colour of indicator.
17
How do oxygen cylinders show over pressure?
Audible warning.
Red rupturing disc.
Green rupturing disc.
18
Oxygen equipment must be carried by aircraft capable of flying above.
4,000 ft.
8,000ft.
10,000ft.
19
What pressure are oxygen cylinders usually pressurised to.
300 psi.
1800 psi.
3000 psi.
20
The direction of flow in an oxygen non-return valve is indicated.
By visual inspection.
By an arrow.
By colour coding.
21
Anoxia is due to.
Low air pressure on the body.
Lack of oxygen.
Release of nitrogen bubbles in the blood.
22
The dilutor demand regulator functions.
All the time.
When the user breathes in.
Only when the supply valve is opened by the user.
23
A thermal compensator is used in.
A fuel system.
A hydraulic system.
An oxygen system.
24
Portable oxygen bottles are fitted with.
An over temperature indicator.
An over pressure indicator.
A demand regulator.
25
When charging an oxygen bottle with gaseous oxygen, the oxygen is.
Passed into the bottle at any rate.
Passed into the bottle slowly to keep the temperature low.
Passed into the bottle as quickly as possible.
26
The oxygen line service valve must be.
Wire locked closed.
Only be wire locked with tell-tale wire.
Wire locked open.
