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Embraer 190 Technical > Oxygen > Flashcards

Oxygen Flashcards

1
Q

How long does the PBE last for?

A

At least 20 minutes

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2
Q

How is PBE Oxygen initiated?

A

Oxygen flow starts automatically after donning the hood

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3
Q

What is the purpose of the PBE?

A

Protective Breathing Equipment providing positive Oxygen for protection against Smoke/Fumes
For EMERGENCY use only

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4
Q

What type of system is the Passenger Oxygen System?

A

Chemically Generated

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5
Q

How do you know that Oxygen is flowing to the drop-down masks?

A

Green in-line flown Indicator

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6
Q

How long does the Passenger Oxygen System Last?

A

12 minutes

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7
Q

Where are the Passenger Oxygen Masks Located?

A

In PSUs (Passenger Service Units) located:
Above all passenger seats (containing 2 or 3 masks)
Flight Attendant Stations
Lavatories
Galley Areas

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8
Q

How do you initiate Oxygen Flow to the drop-down masks?

A

Pulling 1 mask in the unit will initiate oxygen flow to all masks in that unit

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9
Q

What type of system is the Flight Crew Oxygen System?

A

High-pressure Gaseous

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10
Q

What does a CYAN pointer on the Oxygen Pressure Indication mean?

A

There is only enough oxygen for 2 Crew members in the Flight Deck (Jumpseat NOT available)

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11
Q

What will you see on the Oxygen Pressure Indication if there is not enough oxygen for 3 Crew members in the Flight Deck?

A

A Cyan Pointer

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12
Q

What does a GREEN pointer on the Oxygen Pressure Indication mean?

A

There is enough oxygen for 3 crew members in the Flight Deck (Full Occupancy)

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13
Q

What are the 3 settings on the Oxygen Supply Control Knob?

A

EMER
100%
NORM

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14
Q

What type of Oxygen is supplied via the 3 Settings on the Oxygen Supply Control Knob?

A

EMER - Pure Oxygen under positive pressure

100% - Pure Oxygen

NORM - Oxygen/Air Mix (ratio depends on cabin altitude)

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15
Q

When should EMER oxygen supply be used?

A

To eliminate condensation or to purge smoke and toxic fumes from the mask

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16
Q

Why should you revert from EMER to 100% oxygen supply once the mask is clear of smoke, fumes or condensation?

A

The air pressure and flow make communication more difficult

17
Q

How do you test the Full Face Quick Donning Masks?

A

Via a Spring-loaded Test/Reset Button

18
Q

Where is Flight Crew Oxygen Stored?

A

In a rechargeable cylinder, located in the FWD Cargo Bay

19
Q

What is the purpose of the Purge Valve on the Flight Crew Full Face Quick Donning Oxygen Masks?

A

It allows oxygen flow into the face seal, for the purpose of purging smoke and fumes

20
Q

When is the Purge Valve on the Flight Crew Full Face Quick Donning Oxygen Masks automatically opened?

A

When the Oxygen Supply Control Knob is rotated to EMER

21
Q

How do you know that Oxygen is Flowing to the Flight Crew Oxygen Masks?

A

Bright Yellow Star is Visible when Oxygen is Flowing

22
Q

When is oxygen Flow initiated to the Flight Crew masks?

A

When the stowage Box doors are opened

23
Q

When will oxygen stop flowing to the Flight Crew Masks?

A

When The Stowage box doors are closed

24
Q

What will you see when the Test/Reset Button is pressed next to the Flight Crew Masks?

A

Yellow Star Momentarily Blinks
Oxygen can be heard
Regulator should be set to 100%

25
Q

What can you use to open the PSU’s if they fail to open automatically?

A

MRT

26
Q

At What Cabin Altitude to the Passenger Oxygen Masks Automatically Deploy?

A

14,000ft

27
Q

What else happens when the Passenger Oxygen Masks are deployed?

A

Fasten Seatbelt Signs turn ON, No smoking Lights Turn ON

28
Q

How is the pressure of the Flight Crew Oxygen Cylinder Checked?

A

Green Disk on the fuselage
- The disk blows out in the event of Overpressure

29
Q

How much Oxygen does the Flight Crew Oxygen System provide?

A

22 mins on 100% for an Emergency Descent from 41,000ft - 10,000ft
AND
98 mins on NORMAL for Cruise at 10,000ft (allowing for 60 minute diversion)

30
Q

What is the minimum pressure of the Portable Oxygen Bottles?

A

1500psi

31
Q

What are the 2 Flow Rates for the Portable Oxygen Cylinders?

A

LO & HI

Embraer 190 Technical (20 decks)

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