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PC > Oral Bank - AIR SYSTEMS > Flashcards

Oral Bank - AIR SYSTEMS Flashcards

1
Q

When does the equipment cooling system configure for flight?

A

One or more engines on each wing is operating

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2
Q

On the ground, when is warm equipment cooling air ducted overboard? (3)

A
  • Engines not operating
  • Equip cooling selector in NORM
  • Ambient temperature moderate or high
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3
Q

Equipment cooling provides cooling air for what compartment and systems? (2)

A
  • Flight deck equipment
  • Electrical and Equipment racks (E & E)
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4
Q

How can you manually configure the equipment cooling system for flight?

A

Equipment Cooling Selector to STBY

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5
Q

What is the function of the Lower Lobe Cargo Conditioned Air Flow Rate selector?

A

Provides conditioned air to forward and aft cargo lobe

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6
Q

What happens if a pack temperature controller (PTC) detects a fault in a pack channel?

A

Control of the respective pack switches to the other PTC

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7
Q

How many pack temperature controllers (PTC) are provided?

A

Two (A and B)

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8
Q

On the 747-8 with Main Deck and FWD/AFT lower lobe temp selector in the OFF position, what is the temperature zone target?

A

20 degrees C (68F)

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9
Q

747-8, the Nitrogen Generation System coverts bleed air to nitrogen enriched air for what purpose?

A

Reduce flammability of center wing tank fuel

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10
Q

On the 747-8, what does the alternate ventilation system provide with Pack 1+2+3 shutdown and the airplane depressurised?

A

Outside air to the Flight Deck

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11
Q

On the 747-8, what position are the MAIN DECK FWD and AFT TEMP selectors normally placed in during preflight?

A

Off

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12
Q

On the 747-8, what position is the LOWER LOBE AFT CARGO HT selectors normally placed in during preflight?

A

Low

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13
Q

On the 747-8, the TEMP DEV CGO advisory message HI or LO respectively indicate?

A

HI: 5 degrees C higher than selected temp (9F)
LO: 5 degrees C high than selected temp (9F)

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14
Q

The 747-8 Lower Lobe Aft Cargo Heat Selector regulates the temperature control valve to maintain at least __________ in LOW position and ___________ in HIGH position?

A

LOW: 4 degrees C (40F)
HIGH: 10 degrees C (50F)

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15
Q

The 747-8 ECS Left and Right trim air is provided to which temperature zones?

A

LEFT: Flight Deck, Upper Deck, Crew Rest, Aft Main Deck
RIGHT: Forward Main Deck, Forward Lower Lobe, Aft Lower Lobe

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16
Q

When is descent mode, will the cabin altitude controllers program a positive or a negative pressurisation at touchdown?

A

Small positive pressure

17
Q

What action would allow manual operation of the pressurisation system?

A

Both Outflow Manual switches to ON

18
Q

When does the cabin altitude controller switch from controllers? (2)

A
  • Automatically selects A or B on alternate flights
  • If the other fails
19
Q

How many cabin altitude controllers are provided?

A

Two (A and B)

20
Q

How can you gain manual control of the landing altitude?

A

By pushing the LDG ALT switch

21
Q

What does the Zone System (SYS) Fault Light indicate? (3)

A
  • Temp zone duct overheat or zone temp controller fault has occured
  • Master trim air valve failed closed
  • Master trim air valve closed and pack air continues to flow
22
Q

Under what conditions would High Pressure (HP) air be used? (2)

A
  • Descent
  • Other low power setting operations
23
Q

How would you isolate a bleed air duct section in the event of a bleed duct leak? (2)

A
  • Close the respective isolation valve
  • Close the engine bleed air valves
24
Q

What does a bleed duct isolation (ISLN) VALVE light indicate?

A

Isolation valve disagrees with switch position

25
Q

When bleed air pressure is available the Engine Bleed Air Switches control which valves by system logic? (3)

A
  • PRV
  • HP Bleed Valve
  • Engine Bleed Air Valve
26
Q

Describe the general function of pressure regulating valve (PRV)?

A

Prevents damage to ducting and equipment downstream by limiting bleed air pressure

27
Q

Under what conditions would Intermediate Pressure (IP) air be used?

A

High power setting operations

28
Q

With a right duct isolated, how will this affect the hydraulic systems? (2)

A
  • Hydraulic demand pump 4 is turned off
  • No hydraulic system 3 and 4 reservoir pressure
29
Q

With the EICAS message STARTER CUTOUT 1,2,3,4 show, will Nacelle anti-ice be available for the related engine?

A

No

30
Q

With a right duct isolated, how will the affected leading edge flaps extend?

A

The right wing LEF operate electrically in secondary mode

PC (16 decks)

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