Pneumatic

Question 1

The 3 sources or high pressure air for pneumatic system are

Answer 1

Engine bleed, APU bleed, and 2 external HP air ground connections

Question 2

Pneumatic system operation is controlled and monitored by

Answer 2

2 bleed Monitoring Computers

Question 3

High pressure air for pneumatic system is supplied from engine bleed air systems,

Answer 3

APU load compressor, two HP ground connections

Question 4

HP pneumatic air is used for Engine starting,

Answer 4

Hydraulic reservoir pressurization, air conditioning, wing anti icing water pressurization and pack bay ventilation turbofan actuation

Question 5

If engine bleed valve closes,

Answer 5

The HP valve closes automatically

Question 6

The temperature is regulated by

Answer 6

Precooler to 200ºC

Question 7

Precooler outlet temperature green ECAM BLEED page displays changes to amber if the outlet temperature is

Answer 7

290ºC more than 5 sec; 270ºC more than 15 sec; 257ºC more than 55 seconds

Question 8

APU speed more than 95% and APU BLEED pb sw ON:

Answer 8

APU bleed valve opens; crossbleed valve opens; ON in APU BLEED pb sw illuminates

Question 9

APU normal speed, APU BLEED pb ON

Answer 9

APU bleed valve opens, crossbleed valve opens, engine bleed valves close

Question 10

BMCs receive bleed pressure, temperature, valve position information are connected to

Answer 10

other systems requiring bleed information

Question 11

Pneumatic system operation is controlled and monitored by

Answer 11

2 Bleed Monitoring Computers

Question 12

Two BMC supply information to ECAM and

Answer 12

Central Maintenance Computer

Question 13

APU and Engines on, APU BLEED pb sw is ON,

Answer 13

ENG bleed valves close, crossbleed valve opens, APU bleed valve opens

Question 14

Crossbleed valve with two electric motors

Answer 14

One for automatic, the other for manual mode

Question 15

In case of a left wing leak signal Eng 1 bleed valve and HP valve automatically close

Answer 15

If crossbleed valve open it automatically closes (except during engine start or manually selected open); APU bleed valve is open, it automatically closes.

Question 16

APU leak signal, the APU bleel valve automatically closes, FAULT light illuminates in APU bleed pb on the AIR panel;

Answer 16

Crossbleed valve automatically closes (except when manually selected open)

Question 17

Crossbleed engine start to provide air for starting ENG 2, the crossbleed valve is

Answer 17

Manually selected OPEN