Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Airbus G4 Oral Prep (LB) > Supplement: Air Conditioning / Press / Ventilation > Flashcards

Supplement: Air Conditioning / Press / Ventilation Flashcards

1
Q

Which valves will receive a close command when the DITCHING pushbutton is depressed (CARPO)?
FCOM-DSC-21-20-30z

A 
º FWD cargo outlet isolation valve
º Avionics Inlet and Extract valves
º Ram air inlet
º Pack Flow Control valves
º Outflow valve (only if in AUTO mode)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Will the DITCHING pushbutton always close the outflow valve? FCOM-DSC-21-20-40

A

Not if the outflow valve is under manual control

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Can the pilot control the outflow valve?

FCOM-DSC-21-20-30

A

Yes, select MAN on the MODE SEL and use the MAN V/S CTL switch

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

How many auto controllers are in the pressurization system?

FCOM-DSC-21-20-30

A

2, only one is used at a time and they swap roles after each landing

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

How do you manually switch controllers?

FCOM-DSC-21-20-40

A

Switch MODE SEL to MAN for 10 seconds, then back to AUTO

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What does an amber FAULT light in the MODE SEL pushbutton indicate?
FCOM-DSC-21-20-40

A

Both automatic pressure controllers are faulty

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

From what source does the pressurization system normally obtain landing elevation?
FCOM-DSC-21-20-40

A

FMGC database

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

If the FMGC database does not supply the landing elevation, how do you set the landing elevation?
FCOM-DSC-21-20-40

A

Manually by selecting landing elevation via the LDG ELEV knob.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What protects the airframe from excessive cabin differential pressure?
FCOM-DSC-21-20-20

A

2 pressure relief valves (safety valves)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

How many outflow valve motors are installed?

FCOM-DSC-21-20-20

A

3 total. One for each CPC, and one for manual control

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

How would a pilot manually control the pressurization?

FCOM-DSC-21-20-10

A

By selecting MAN on the MODE SEL pb and utilizing the MAN v/s CTL toggle switch.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What flow rate is automatically selected when APU bleed air is in use or during single pack operation?
FCOM-DSC-21-10-50

A

HI

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

If the engine bleed air in-flight is too low what will occur?
FCOM-DSC-21-20-30

A

Engine speed is automatically increased to provide adequate bleed air pressure

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What would cause an amber FAULT light to illuminate in the PACK 1 and/or Pack 2 pushbutton (OOD)?
FCOM-DSC-21-10-50

A

º Overheat - Pack outlet
º Overheat - Compressor outlet
º Discontinuity - Switch position disagreement with pack flow control valve
Note: FAULT light will be illuminated when no bleed air is supplied

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

At what cabin differential pressure does the RAM AIR valve open?
FCOM-DSC-21-10-20

A

1 PSI ΔP or less

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What causes the Pack Flow Control valve to automatically close?
FCOM-DSC-21-10-50

A 
º Upstream pressure below minimum
º Pack overheat
º Engine start sequence
º Engine FIRE pushbutton on the related side pressed
º DITCHING pushbutton is selected
17
Q

What does an amber FAULT light in the HOT AIR pushbutton indicate?
FCOM-DSC-21-10-50

A

Duct overheat - the Hot Air and Trim Air valves close automatically

18
Q

How many Air Conditioning System Controllers are there & how many lanes do they have?
FCOM-DSC-21-10-10

A

º 2 Air Conditioning System Controllers

º Each Air Conditioning System Controller has 2 lanes – (Active/Standby)

19
Q

Describe how the Air Conditioning System Controllers regulate temperature?
FCOM-DSC-21-10-30

A

º Basic temperature regulation: Both packs produce the required outlet temperature determined by
the lowest demanded zone temperature
º Optimized temperature regulation: Hot air is added to the individual zones by the trim air valves to
maintain the desired zone temperatures

20
Q

What occurs when an active lane of an Air Conditioning System Controller fails?
FCOM-DSC-21-10-40

A

The second lane takes over

21
Q

What occurs when both lanes of an Air Conditioning System Controller (ACSC) fail?
FCOM-DSC-21-10-40

A

The related pack is lost. The hot air pressure regulating valve and associated trim air valve(s) close

22
Q

How does the Air Conditioning System Controller configure its associated pack ram air inlet flap for takeoff and landing to avoid the ingestion of foreign matter?
FCOM-DSC-21-10-30

A

º Takeoff: Pack Ram Air Inlet Flap closes when takeoff power is set and the main landing gear struts are
compressed. Reopens after main landing gear strut extension
º Landing: Pack Ram Air Inlet Flap closes as soon as the main landing gear struts are compressed and speed ≥
70 knots. Opens 20 seconds after speed < 70 knots

23
Q

If an air cycle machine (ACM) fails, what occurs?

FCOM-DSC-21-20-40

A

The affected pack will operate as a heat exchanger

24
Q

What effect will the engine start sequence have on the pack flow control valves?
FCOM-DSC-21-10-20

A

The pack flow control valve will close automatically

25
Q

What does the CARGO HEAT HOT AIR amber FAULT light indicate?

FCOM-DSC-21-40-30

A

Duct overheat

26
Q

Ventilation Panels:
What is the purpose of the CABIN FANS?
FCOM-DSC-21-10-20

A

To re-circulate cabin air to the mixing chamber and then back to the cabin

27
Q

Ventilation Panels:
With BLOWER and EXTRACT pushbuttons in AUTO how does the system operate?
FCOM-DSC21-30-20, FCOM-DSC-21-30-60

A

º Ground – system is normally in the OPEN configuration
º Flight – system is normally in the CLOSED configuration
º Intermediate – Closed configuration except small internal flap in Extract Valve is open

28
Q

Ventilation Panels:
With both BLOWER and EXTRACT pushbuttons in OVRD (smoke configuration) what are the positions of the
INLET and EXTRACT valves?
FCOM-DSC-21-30-20

A

º INLET valve CLOSED

º EXTRACT valve OPEN

29
Q

Ventilation Panels:
What is the status of the Blower and Extract fans with the Blower and Extract valves in OVRD?
FCOM-DSC-21-30-20

A

º BLOWER fan OFF

º EXTRACT fan ON

30
Q

Ventilation Panels:
When is air conditioning introduced into the avionics compartment?
FCOM-DSC-21-30-20

A

º Abnormal operation

º SMOKE configuration

31
Q

Ventilation Panels:
Is the skin heat exchanger ever bypassed in flight?
FCOM-DSC-21-30-20

A

Yes; during SMOKE configuration

32
Q

Ventilation Panels:
What does an amber FAULT light on the BLOWER pushbutton indicate?
FCOM-DSC-21-30-60

A

º SMOKE warning is activated
º Computer power supply failure
º Low blower pressure
º Duct overheat

33
Q

Ventilation Panels:
What does an amber FAULT light on the EXTRACT pushbutton indicate?
FCOM-DSC-21-30-60

A

º SMOKE Warning is activated
º Computer power supply failure
º Low Extract pressure

34
Q

Ventilation Panels:
With 2 FAULT lights on the VENTILATION panel are there any other indications?
FCOM-DSC-26-30-20

A

Yes – The SMOKE light in the GEN 1 LINE pushbutton

Airbus G4 Oral Prep (LB) (25 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions