Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

M11 > 11.4 > Flashcards

11.4 Flashcards

1
Q

What is pneumatics?

A

Using a pressurised or compressed gas as a source of power

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What are pneumatics used for on aircraft?

A 
Engine starting
Cabin pressurisation
Air conditioning
Wing anti-icing
Air driven pumps
Air motors for slats
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What needs to be as constant as possible in any pneumatic system for it to work effectively?

A

Air pressure and temperature

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What is the main air source on jet aircraft?

A

The engine compressor

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What supplies the pneumatic system when the aircraft is grounded?

A

Outside air or high pressure ground connectors

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What changes when thrust changes?

A

Amounts of air pressure

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What is a pressure regulator used for?

A

Maintains a constant level of pressure and bleed air supply at high engine speeds

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What is a pressure regulator also known as?

A

A bleed valve

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

How many compressor stages is air pressure bled from?

A

2

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What are the compressor stages known as in pneumatic terms?

A

Low pressure compressor- IP (intermediate pressure)

High pressure compressor- HP (high pressure)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What does the check valve in the high pressure compressor prevent?

A

Protects the engine compressor against backflow

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What increases with engine thrust?

A

Air temperature

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Where does the built in pre-cooler get its air from?

A

Engine fan duct

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Where is pneumatic air distributed via?

A

Ducts

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What are the 5 ducts known as?

A 
Left wing
Right wing
Pylon
APU
Crossover
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Where is the cross bleed manifold usually located?

A

In the fuselage

17
Q

What monitors the pneumatic ducts?

A

A leak detection system

18
Q

Why do aircraft fly at high altitudes?

A

Economic reasons

19
Q

What separates pressurised and unpressurised areas in the aircraft?

A

Pressure bulkheads

20
Q

Which areas aren’t pressurised?

A

Landing gear bays
Radome
Tail cone

21
Q

What must the air con system ensure that the air is?

A 
Fresh
Clean
Comfortable temperature
Correct humidity
Correct pressure
22
Q

What is ensured to keep the air con air clean?

A

Air filters

23
Q

Where are the aircon controls located?

A

Overhead panel in the flight deck

24
Q

Where are the pack and zone controllers found?

A

Avionics compartment

25
Q

What are the 3 types of air cooling device?

A

Heat exchanger
Vapour-cycle machine
Air-cycle machine

26
Q

When are vapour cycle machines used?

A

When engine bleed air is not available

27
Q

What do air cycle machines use to work?

A

Bleed air from the pneumatic system

28
Q

What drives air cycle machines?

A

The turbine

M11 (3 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions