M11.3 Structures Flashcards
1
Q
What is the purpose of the over centring spring on a passenger door
A
To make sure the selector isn’t in a neutral position
2
Q
What is the purpose of the dorsal fin on an aircraft
A
An aerodynamic fitting between the vertical stab and the fuselage
3
Q
The pack valve is responsible for regulating what
A
Amount of air entering the cabin
4
Q
What is the sequence of coolant through a vapour cycle machine
A
Expansion valve, evaporator, compressor, condenser
5
Q
In an air cycle machine how is the supply air cooled
A
Initially by the heat exchangers and then finally by the turbine
6
Q
If the pack valve air supply fails what would occur
A
It would close under spring pressure
7
Q
Why is the fuselage pressurised before take off
A
To stabilise the fuselage
