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ATR type Rating > skyblue CBT oxygen system > Flashcards

skyblue CBT oxygen system Flashcards

1
Q

what is the calculated amount of oxygen for the pax?

A

25% of pax for 30 mins at 25000ft

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2
Q

how much oxygen are the flight crew supplied with?

A

10 mins from 25000ft

110 mins between 10,000 feet and 13000 feet

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3
Q

what supplies oxygen to the flight deck and cabin?

A

a high pressure cylinder through a distribution system

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4
Q

what do the 2 portable oxygen bottles provide?

A

30 mins at a cabin altittude of 13000ft

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5
Q

what is the oxygen bottle capacity?

A

2180L

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6
Q

what is the oxygen bottles nominal pressure?

A

1850psi

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7
Q

what is the oxygen distribution system pressure?

A

78psi

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8
Q

where is pressure of the oxygen bottle displayed?

A

overhead panel and on the bottle

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9
Q

what is the minimum normal operating pressure for the oxygen bottle?

A

1400psi

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10
Q

what will happen if an overpressure occurs on either side of the bottles pressure reducer?

A

content of bottle is discharged via a port forward of the main cargo door.

Check for green disk on walk around

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11
Q

how is oxygen from the bottle supplied to the crew?

A

low pressure supply valve

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12
Q

how is oxygen to the pax oxygen system controlled?

A

pax supply valve downstream of the low pressure supply valve

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13
Q

when is the low pressure supply valve open?

A

when OXYGEN MAIN SUPPLY button is pressed

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14
Q

why does the additional crew member mask have a lengthened tube?

A

to allow the jumpseater to reach the cargo compartment

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15
Q

what automatically engages the mask microphone?

A

push button by left mask compartment door

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16
Q

what does the yellow cross on the mask container signify?

A

oxygen is flowing

17
Q

how can boom microphone be recovered?

A

by closing the mask doors. the yellow blinker will disappear

18
Q

how is oxygen distributed to pax oxygen system?

A

passenger supply valve when the PAX SUPPLY button is pressed in

19
Q

why would a portable flight attendant oxygen bottle be used?

A
  • depressurisation
  • medical reason
20
Q

when does the oxygen low pressure light for the main supply display?

A

pressure dropped below 50psi

21
Q

how do we get 100% oxygen?

A

by pressing the 100% rocker switch

22
Q

what needs to be pressed in for the oxygen mask test?

A

MAIN SUPPLY

23
Q

what does the crew oxygen mask regulator consist of?

A

an unlock rocker

an emergency selector

24
Q

what does the emergency selectro on the oxygen mask control?

A

pressure of oxygen delivered to the mask

25
Q

how much oxygen can be supplied to the 3 flight deck crew when set to 100%?

A

15 minutes

26
Q

what will pushing the emergency selector button do?

A

deliver oxygen at full pressure

27
Q

what pressure is delivered to the smoke goggles to prevent fogging and purge the goggles of smoke?

A

0.5psi

28
Q
A

ATR type Rating (22 decks)

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