Air Systems

Question 0

How is the Hot Air Pressure Regulating Valve controlled?

Answer 0

HOT AIR pb on the overhead panel

Question 1

What would an amber temperature indication in either Pack Outlet Temperature or Pack Compressor Outlet Temperature indicate?

Answer 1

Excessive temperature

Question 2

If the bleed air is being supplied by the APU or if one pack fails, pack flow will go to what rate?

Answer 2

High

Question 3

With the APU supplying bleed air, what will be the pack flow if the PACK FLOW switch is in LOW?

Answer 3

High

Question 4

There are 3 temp selectors for the various zones of the aircraft. The pack controllers will deliver air at the coolest demanded temp to the mixing units. How are the individual zone temps maintained comfortable if the air being demanded is always the coldest?

Answer 4

By mixing hot bleed air, through the trim air valves into the distribution network.

Question 5

In flight, what happens if HP bleed air pressure is insufficient?

Answer 5

Engine speed is increased automatically

Question 6

What is indicated by a FAULT light in the HOT AIR pb?

Answer 6

Duct overheat

Question 7

The pack flow control valve automatically closes for engine start when the mode selector is moved to IGN/START. when does the valve automatically reopen?

Answer 7

After successful start or 30 seconds

Question 8

How many motors are installed on the crossbleed valve?

Answer 8

Two, one for the automatic mode and one for the manual mode

Question 9

Can external air be used to supplement low APU pressure?

Answer 9

No

Question 10

If the APU bleed valve is open and the X BLEED selector is in AUTO, what is the position of X BLEED valve?

Answer 10

Open

Question 11

When would the RAM AIR pb be used?

Answer 11

Ventilation and/or smoke removal

Question 12

What happens to the outflow valve when the RAM AIR pb is selected ON?

Answer 12

The outflow valve opens when cabin differential pressure is less than 1 PSI

Question 13

If SYS 1 (or SYS 2) were displayed in amber, what would be indicated?

Answer 13

System fault

Question 14

What is indicated if the cabin vertical speed is indicated in amber?

Answer 14

High cabin rate of climb/descent

Question 15

What occurs when the DITCHING pb is selected on?

Answer 15

All valves below the waterline close, except the outflow valve if the CABIN PRESS MODE SEL is in MAN

Question 16

With the LDG ELEV selector in AUTO, what altitude is used for landing field pressurization reference?

Answer 16

FMGC database information

Question 17

With the LDG ELEV selector at 2, what would be the landing elevation?

Answer 17

2000’

Question 18

When does the pressurization system switch auto controllers?

Answer 18

After each landing

Question 19

What does the fault light in the MODE SEL switch indicate?

Answer 19

Both automatic systems have faulted

Question 20

Is cargo heat provided to the forward cargo compartment?

Answer 20

No

Question 21

What ECAM page is selected to verify aft cargo compartment temperature?

Answer 21

ECAM COND page

Question 22

What would the FAULT light in the AFT ISO VALVE indicate?

Answer 22

A fault has been detected

Question 23

How many CAB FANS are installed?

Answer 23

Two

Question 24

If either the Blower or Extract pb is selected to OVRD, will the system run in the OPEN or CLOSED configuration?

Answer 24

Closed