Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
11 Cards in this Set
- Front
- Back
|
What is the source of pressurisation for different aircraft |
Compressor of jet engine Supercharger of piston engine Aux compressor |
|
|
What is the most common type of small aircraft heater |
Exhaust shroud heater |
|
|
What are combustion heaters |
They use the aircarfts fuel to ignite one spark plug and heat the ram air |
|
|
What is the common type of refrigerant in aircraft air con |
R 134 R 12 |
|
|
What valve does the thermostat in a combustion heater control |
Fuel supply valve |
|
|
Why is the ventilating air px higher than the px of the combustion air in a combustion heater |
If the combustion chamber cracks the ventilation air will flow into the chamber. Sealing all the CO in the chamber |
|
|
What are the method of removing heat in a air cycle air con |
Heat exchangers |
|
|
Where are the water separators located before or after the ACM pack |
After This is due to moisture being created during the cooling. |
|
|
What are the two types of air con |
Air cycle (B757) Vapor cycle (same as my subaru and herc) |
|
|
What are the 2 components that divide the hi and low are |
Compressor Thermal expansion valve |
|
|
Why is a preheater used in a combustion heater |
Make the fuel easier to ignite |
