Pressurization

Question 1

What areas are not pressurized

Answer 1

Radon’s
Landing gear bays
Air conditioning compartment
Tail section

Question 2

Pressurization is maintained by 1 of 2 pressurization controllers. Each controller controls a ________?

Answer 2

Motor that opens and closes an outflow valve.

Question 3

Pressurization can be Monitored by referencing

Answer 3

The cruise and cabin press pages of the SD

Question 4

What controls the outflow valve in flight and ground?

Answer 4

An electric motor that gets info from cabin press controller.

After landing the controllers switch rolls.

During flight if active controller fails the standby takes its place.

Question 5

If both Press controllers fail in flight then the Manual backup will work by_________?

Answer 5

Selecting mode selector in Cabin Press panel.

Question 6

Status of controllers is selected on

Answer 6

CAB PRESS page.

Question 7

If switched to manual how do you control outflow

Answer 7

Man v/s switch

Question 8

How do you switch controller rolls

Answer 8

Select man on mode sel for 10sec or more.

Question 9

Press controller input includes

Answer 9

FMGS
-planned cruise alt
-time to altitude
-point where descent begins
THRUST LEVER FEEDBACK
ADIRS(air data inierial ref says)
LGCIU(LG control & interface unit)

Question 10

One of the most important inputs to controller is the

Answer 10

Destination airport elevation- it receives this info when landing elevation selector is set to auto.

Question 11

To set the landing field elevation manually?

When would you do this?

Answer 11

Pull the landing elec auto button out and select elevation.

Both FMGC fail or
Airport of landing is not in data base

Question 12

Outflow valve is located

Answer 12

Right side aft fuselage
Status of valve is displayed on cab press page.

Question 13

Safety valves are located

Answer 13

Aft right side above flotation line.

There is one SAFETY icon on CAB PRESS page that represents both safety valves

If indication is Amber there is a problem.

Question 14

Ditching push button closes all fuselage opening below the flotation line.

Answer 14

Outflow valve
Emergency ram air
Avionics ventilation extract valve
Pack flow control valves
Aircraft with cargo heat would close

If operating manually the outflow valve we need to be closed manually.

Question 15

Cabin begins to pressurize when?

Answer 15

Before rotation.

Question 16

Rate of descent is limited to

Answer 16

750’

Question 17

In ground mode if there is residual pressurization in cabin then?

Answer 17

Outflow valve opens gradually until no more press and it is fully open

Question 18

Abort mode is enabled if a descent is sensed below 8000’

Answer 18

It will reset controller to departure airport elevation. This is automatic and no pilot action is required.