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Cartes-fiches 54 Cartes-fiches
Utilisateurs 7 Utilisateurs
Langue English
Niveau Université
Crée / Actualisé 23.04.2019 / 15.05.2019
Attribution de licence Non précisé
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Take into account a large transport aeroplane (CS25)

List the requirements for emergency exits

  • there has to be an emergency exit on both sides of the aeroplane 
  • must provide the capability to empty the aeroplane within 90 seconds using half of the number of exits only, and during darkness
  • are equipped with a slide or ramp if the exit is " too high" above the ground.
  • It has to be marked : "EXIT"
  • are marked on the outside by a band of contrasting colors
  • to be opened from the in- and outside
  • opening must be simple and obvious
  • must have a handling instruction
  • protected against inadvertent opening
  • can be operated in PARK- and FLIGHT position.
  • must be easily accessible 
  • free of obstructions
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What is the purpose of an accumulator in a hydraulic system?

The accumulator of the hydraulic system is used...

for damping pressure surges (peaks) in the system.


as a storage of engergy, i.e. it provides the ability to drive a unit one time or several times even if the pumps do not work or it helps if a lot of working units have to be driven at the same time.

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What is the right sequence of components in the air cycle system (boot strap system)?

  • primary heat exchanger 
  • compressor 
  • secondary heat exchanger 
  • turbine
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In which way is the cabin pressure regulated in a large aeroplane with pressurized cabin?

  • Steady airflow into the cabin
  • pressure regulation by variation of airflow leaving the cabin.
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During cruise flight, the cabin air for conventional large turbofan driven aeroplance (like B737 or A320) is usually supplied by...

  • the air conditioning packs which are supplied 
  • by main engine compressor bleed air
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In jet engine driven aeroplanes the "thermal anti-ice system" is primarily supplied by...

... bleed air from the engines

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What is the relation between cabin pressure and ambient pressure (aeroplane with pressurised cabin in cruise flight)?

The cabin pressure is...

higher than ambient pressure

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What is a cabin rate of descent?

The increase in cabin pressure is expressed as cabin rate of descent.