Answers
If a decompression occurs, how can the CC know that the pilots are aware of the
situation?
The CC heard "N1 to the flight deck" or will feel the emergency descent.
Which setting must be used on the Quick don O2 mask if a pilot is found
incapacitated after decompression?
Emergency.
How many Quick don O2 mask are located in the flight deck?
4.
How would you manually open the compartment containing the O2 drop down
masks above each of the mains doors?
- With an ID/Credit card.
How is the passenger and CC O2 system activated Electrically?
- By a switch in the flight deck (switching the passengers oxygen from normal to on)..
At which cabin altitude will O2 mask drop down Automatically?
14,000 feet.
Where can the drop down O2 mask be found in the cabin and how many of them
in each location are there?
- 4 mask in the PSU per seat row.
- 2 mask in each toilet.
- 2 mask above each main doors.
How many drop down O2 mask can be found above each main door?
2 mask.
How many drop O2 mask can be found in each PSU?
4 mask.
If there is a loss of cabin pressure and the passenger oxygen mask deploy during
the flight, what would you do?
Grab the nearest oxygen mask, and shout the passengers to do the same.
What is the time of useful consciousness at 40,000 feet?
18 sec.
When does advanced Hypoxia occur and what are the symptoms?
At 14,000 feet.
- Headache.
- Tiredness.
- Blurred vision.
- Loss of muscular coordination and
- Posible personality change.
Which factors will have a direct influence on the effects of Hypoxia?
, - The altitude reach.
- Rate of ascent.
- Duration of exposure.
- Individual tolerance.
- Physical fitness.
- Physical activity.
- Psychological factors.
- Environmental temperature.
- Alcohol and smoking.
- Medical conditions.
What altitude does Extreme Hypoxia occur at?
20,000 feet.
What altitude does Mild Hypoxia occur at?
10,000 feet.
Headache, tiredness, burred vision, loss of muscular co-ordination, and possible
personality changes are symptoms of?
Advanced Hypoxia.
What are the symptoms of Mild Hypoxia?
- Headache.
- Yawing.
- Occasional deep breath.
What are the material defects of a rapid decompression?
- Aloud explosive noise.
- Air rising towards the failure (the hole) carrying loose article, papers, dust etc.
- A dense fog will form in the cabin momentarily as the moisture held in the cabin
condense.
- Hot liquids will suddenly boil over (risk of scalding) doe to the reduced boiling point.
- Oxygen mask will drop dow.
- Fasten seatbelts sign will illuminates.
What is a rapid decompression?
This is a sudden loos of cabin pressure , which takes less than 10 sec. to equalize with
the outside pressure.
What is a Slow decompression?
This is a gradual loss of cabin pressure, which can take more than 10 sec. to equalize
with the outside pressure.
At cruising altitude 0f 37,000 ft a/c need to be pressurized for us to be able to
breath, to what altitude is a/c pressurised?
6,000-8,000 ft.
At which altitude does extreme Hypoxia occur and what are the Symptoms?
20,000 ft.
- Convulsion.
- Colapse.
- Coma.
- Possible death within minutes.
Decompression. What should the N2 do upon hearing "N1 to the flight deck"?