11.4.1 - Air Supply - 2q

Question 1

What does the Cabin Blower do?

Answer 1

Question 2

Where does the Cabin Blower recieves its air from?

Answer 2

Cabin blower = provides compressed air for the cabin

Cabin blower recieves its air from ambient air

Question 3

What is meant by Turbo-compressor flow multiplier?

Answer 3

Question 4

What is the likely cause if you can’t maintain high bleed pressure?

Answer 4

Cant maintain high bleed pressure, faulty LP check valve

Question 5

What does the flow control valve do?

Answer 5

Flow control valve regulates the specific volume of airflow

Question 6

What does the Spill Valve do?

Answer 6

Onedrive Notes: Spill Valve = Controls the flow to the cabin

Question 7

What is the minimum cabin air mass flow required?

Answer 7

Question 8

Does the air delivered to the cabin change depending on altitude and requirements?

Answer 8

Question 9

What is the air required in the flight deck?

Answer 9

Question 10

What exact CS is Air supply covered in?

Answer 10

Question 11

What is the max carbon dioxide allowed?

Answer 11

Question 12

What ATA is air supply covered under? (Pneumatic)

Answer 12

Question 13

What size diameter is the Ground Air Con connector?

Answer 13

Question 14

What is the default position of the Pressure regulator and shutoff valve (PRSOV)?

Answer 14

Pressure regulator and shutoff valve (PRSOV) is a pneumatically actuated, spring loaded closed, butterfly type valve.
The valve in conjunction with a remotely mounted bleed air regulator, provides pneumatic signals to open, close and regulate pressure for downstream bleed air.

Question 15

Ground service air should be? (PSI & Temp)

Answer 15

Question 16

When is high flow from the APU possible?

Answer 16

Question 17

What size is the connector used for engine start?

Answer 17

Question 18

What does the Differential capsule in a pressure controller do?

Answer 18

Question 19

What does the Evaporator do in the Vapor cycle system?

Answer 19

Vapor cycle system, Evaporator removes heat from the cabin (inside the cabin)

Question 20

If the aircraft climbs through 6,000 ft and the cabin alt warning activates. What is the likely cause?

Answer 20

Question 21

A Leaking sense line to the thermostatic expansion valve on a vapour cycle air con system will result in?

Answer 21

Question 22

Cabin pressure rate of change is measured as?

Answer 22

Question 23

Answer 23

2/ The compressor section of a turbojet

Question 24

Answer 24

Bleed air

Question 25

Answer 25

Provide air for engine starting

Question 26

Answer 26

provide compressed air for cabin pressurisation

Question 27

Answer 27

It will be restricted by altitude

Question 28

Answer 28

The pressure in the hose is dissipated

Question 29

Answer 29

Ambient air

Question 30

Answer 30

Compressor

Question 31

If the bleed air system cannot maintain the required system pressure at high engine RPM the most likely cause is:
1/ Faulty HP valve
2/ Faulty LP check valve
3/ Faulty LP valve

Answer 31

2/ Faulty LP check valve

Question 32

A bleed air Flow control valve of the Pack regulates which parameter:
1/ the speed of the airflow
2/ the specific volume of airflow (not the mass)
3/ the temperature of the airflow

Answer 32

2/ the specific volume of airflow (not the mass)

Question 33

What precautions should be taken when operating pneumatic ground cart supply:

Electrical power
Extra extinguishers
APU CBs should be pulled

Answer 33

Electrical power X

Question 34

Air supplied for air conditioning is its hottest at:

Engine compressor bleed
ACM outlet
Heat exchanger outlet

Answer 34

Engine compressor bleed X

Question 35

If the bleed air system cannot maintain the required system pressure at high engine RPM the most likely cause is:

Faulty HP valve
Faulty LP check valve
Faulty LP valve

Answer 35

Faulty LP check valve

Question 36

Answer 36

1/ engine compressor bleed