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11 Questions

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Aircraft Air Ventilation Systems

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Questions and Answers

What is the function of the re-circulation system in the aircraft air supply system?

Cleans used air and sends it back to the air supply system for distribution (correct)

Controls the temperature of the electronic flight displays

Replaces used air with fresh air from outside the aircraft

Supplies cool air to the electronic flight displays

What is the main function of the electronic-flight-display ventilation system?

Replaces the hot air in EFD housings with cool air (correct)

Controls the distribution of air within the aircraft compartments

Cleans and filters the used air from the aircraft

Supplies hot air to the electronic flight displays

What is the source of the air supplied to the internal compartments of the aircraft?

The electronic-flight-display ventilation system

The re-circulation system

Fresh air from outside the aircraft

Air-conditioning packs (correct)

Where does the air supply system get the air from for distribution?

The air-conditioning units of the cooling system Signup and view all the answers

What is the function of the plenum chamber in the air supply system?

To direct airflow from the air-conditioning units to the internal compartments of the aircraft Signup and view all the answers

What is the purpose of connecting the plenum chamber to the LH and RH air-conditioning units?

To ensure correct airflow directions into the flight compartment and cabin Signup and view all the answers

What happens if there is a failure of the air-conditioning units in supplying pressurized air?

The ambient air inlet supplies unpressurized air from the atmosphere Signup and view all the answers

Which sub-systems does the plenum chamber send air to as part of the air supply system?

The flight-compartment distribution system and cabin distribution system Signup and view all the answers

What is the role of the ground-connection and ambient air inlet connections to the plenum chamber?

To supply unpressurized air in case of air-conditioning unit failure Signup and view all the answers

What does the plenum chamber outlet to the flight-compartment system do?

Provides pressurized air to operate flight controls Signup and view all the answers

How does the plenum chamber ensure that LH and RH air-conditioning unit airflows have correct directions before entering internal compartments?

By connecting to LH and RH air-conditioning units and directing airflow Signup and view all the answers