1. Aircon/Press/Vent.

Question 1

Hot air fault light illuminates on the air conditioning panel;

Accepted Answer

The hot air press. reg. valve closes and the trim air valves close

Answer

The hot air press. reg. valve opens and the trim air valves close

Answer

The hot air press. reg. valve closes and the trim air valves open

Answer

The hot air press. reg. valve opens and the trim air valves open.

Question 2

In case of zone controller primary and secondary channel failure, what temperatures are maintained by pack one and pack two

Accepted Answer

20 deg.c. pack 1, 10 deg.c. pack 2.

Answer

15 deg.c. both.

Answer

25 deg.c. both.

Answer

24 deg.c. pack 1, 15 deg.c. pack 2.

Question 3

In normal flight in closed circuit configuration, the avionics ventilation system controls the temperature of the cooling air by

Accepted Answer

Passing air through a skin heat exchanger.

Answer

Adding air-conditioned air to the flow

Answer

Extracting air overboard.

Answer

Adding avionics bay air.

Question 4

To enable Ram air to the mixer unit, the Ram air switch should be used

Accepted Answer

Only when diff. press. is less than 1 psi

Answer

At any time

Answer

When press. is greater than 1 psi. diff

Answer

Only after outflow valve is fully opened

Question 5

Pack controller, primary channel failure

Accepted Answer

The secondary computer operates as a back up mode and regulation is not
optimised

Answer

The secondary computer takes over (all functions as normal)

Answer

Pack is lost

Answer

Pack outlet temp. is controlled at 15 deg.c.

Question 6

Pack controller, secondary channel failure

Accepted Answer

No effect on pack regulation back up mode is lost

Answer

Pack is lost

Answer

No effect (all modes still available)

Answer

Pack outlet temp. is controlled at 15 deg.c

Question 7

Pack controller, primary and secondary channel failure

Accepted Answer

Pack outlet temp. is controlled at 5°C to 30°C in a maximum of 6 minutes by the ant-ice valve

Answer

The pack is closed

Answer

The packs deliver a fixed temperature of 20 deg.c

Answer

Both packs are controlled to 24 deg.c

Question 8

Hot air press. reg. valve failed open

Accepted Answer

No effect

Answer

Optimised regulation is lost

Answer

The temperature stays at the value selected when the failure occurred.

Answer

Cabin temperature will be controlled at the upper limit 30 deg.c.

Question 9

Bleed air supplied from the APU (apu bleed valve open), the pack flow is automatically selected

Accepted Answer

High

Answer

Normal

Answer

Low

Answer

Econ. flow

Question 10

Trim air valve, each one optimizes the temperature by

Accepted Answer

Adding hot air

Answer

Adding fresh air

Answer

Modulation of pack flow

Answer

Adding recirculated air

Question 11

Hot air pressure regulating valve

Accepted Answer

Regulates the pressure of hot air tapped upstream of the packs

Answer

Is spring loaded open in the absence of air

Answer

Opens automatically in case of duct overheat

Answer

Opens automatically if the cockpit trim air valve fails

Question 12

Pack flow control valve

Accepted Answer

Is pneumatically operated and electrically controlled

Answer

Electrically operated and pneumatically controlled

Answer

Opens automatically during engine starting

Answer

Is spring loaded to open

Question 13

The temperature selectors are located in

Accepted Answer

The cockpit

Answer

The Cabin

Answer

The avionics bay

Answer

Only on the CIDS panel at the fwd. attendant station

Question 14

Pack flow may be selected from

Accepted Answer

The cockpit

Answer

The cabin

Answer

The avionics bay

Answer

Only the CIDS panel at the fwd. attendant station

Question 15

Engine pressure demand, when the cooling demand in one zone cannot be satisfied, if bleed pressure is low

Accepted Answer

The minimum idle is increased automatically

Answer

The minimum idle must be increased manually

Answer

In any case, flight idle is sufficient

Answer

The APU must be used to supply additional air

Question 16

What is the Norm. Max. cabin altitude

Accepted Answer

8,000 ft.

Answer

9,550 +/- 350 ft.

Answer

14,000 ft.

Answer

800 ft.

Question 17

What is the Max. negative Diff. pressure for the cabin

Accepted Answer

-1 psi

Answer

0 psi

Answer

-2 psi

Answer

-8.6 psi

Question 18

Is it permissible to use simultaneously packs and Lp ground unit during long stops in a hot airfield

Accepted Answer

No

Answer

Yes

Answer

Yes, if external temperature is greater than 50 deg.c.

Answer

Yes, provided the airflow supplied by the ground cart is less than 1.2 kg/s.

Question 19

Trim air valves are modulated by

Accepted Answer

The zone controller

Answer

Anti-ice valve

Answer

Hot air pressure regulating valve

Answer

The pack controller

Question 20

The mixing unit is connected to

Accepted Answer

Packs, Cabin air, emergency ram air inlet and Lp ground connector

Answer

Packs, emergency ram air inlet and Lp ground connector.

Answer

Packs and cabin air

Answer

Pack 1 and pack 2 only

Question 21

Once set to ‘ON’ the air conditioning packs operate

Accepted Answer

Automatically and independently of each other

Answer

Normally, but the output of one affects the other

Answer

Automatically, pack one as a master, pack two as a slave

Answer

Automatically, pack two as a master, pack one as a slave.

Question 22

Emergency ram air inlet, when set to ‘ON’ the ram air valve will open and supply airflow

Accepted Answer

Diff. press. < 1 psi. and ditching not selected

Answer

In any case

Answer

Provided ditching is not selected

Answer

Provided ditching is selected.

Question 23

Zone controller fault (primary channel failure)

Accepted Answer

Cabin zone at fixed temp

Answer

Packs at fixed temp

Answer

Secondary channel operates as back up and operation is as normal

Answer

The packs deliver a fixed temperature, 20 deg.c. pack 1 and 10 deg.c.pack 2

Question 24

Conditioned air is distributed to

Accepted Answer

Cockpit, fwd. and aft. cabins

Answer

Cockpit, cargo bays and cabin

Answer

Cockpit, avionics bay and cabin

Answer

Cockpit, cabin and holds 1 & 2 only

Question 25

The cabin zone temperature sensors are ventilated by

Accepted Answer

Air extracted by the lavatory and galley fans

Answer

Air extracted from the avionics bay

Answer

Temperature sensors are ventilated by ram air

Answer

Temperature sensors are ventilated by discharge air to the outflow valve

Question 26

Temperature control is automatic and is regulated by

Accepted Answer

Both the zone and pack 1 & 2 controllers

Answer

Zone controllers only

Answer

Pack 1 and 2 controllers only

Answer

The pack flow control valves only

Question 27

If a pack controller fails, (primary and secondary channel failure), the pack outlet air temperature is controlled by

Accepted Answer

Anti Ice Valve

Answer

Ram Air Valve

Answer

Hot Air Pressure Regulating Valve

Answer

Trim air valve

Question 28

The Zone Controller optimizes temperature by action on

Accepted Answer

Trim Air valve

Answer

Pack anti ice valve

Answer

Pack Flow control valve

Answer

Hot air pressure regulating valve.

Question 29

When the pack flow control knob is positioned to HI, airflow is

Accepted Answer

120 % of normal

Answer

80 % of normal

Answer

150 % of normal

Answer

102 % of normal

Question 30

When using APU bleed to supply the packs, with the pack flow selector at Lo, the pack airflow is

Accepted Answer

120% of normal

Answer

80 % of normal

Answer

Normal

Answer

102% of normal

Question 31

The pack flow control valve closes automatically in case of

Accepted Answer

A) Pack overheat, engine starting, or operation of the fire or ditching push button

Answer

B) Bleed valve failure, pack outlet pressure increase

Answer

Both (a) and (b)

Answer

Trim air valve failure

Question 32

In case of trim air system fault (zone controller primary channel failure),the secondary channel of the zone controller regulates the zone temperature at

Accepted Answer

24 deg.c

Answer

14 deg.c

Answer

15 deg.c

Answer

10 deg.c.

Question 33

In case of total zone controller failure

Accepted Answer

Hot air and trim air valves close and packs deliver air at a fixed temperature;
20 deg.c. pack 1 , 10 deg.c. pack 2

Answer

Hot air and trim air valves open and packs deliver air at a fixed temperature;
15 deg.c. pack 1 , 10 deg.c.pack 2

Answer

Hot air and trim air valves close and packs deliver air at a fixed temperature;
15 deg.c. pack 1, 10 deg.c.pack 2

Answer

Hot air and trim air valves open and packs deliver air at a fixed temperature;
20 deg.c. pack 1 , 10 deg.c. pack 2.

Question 34

During landing run ram air inlet flaps open when speed is less than

Accepted Answer

70 kts. (after 20 sec. delay).

Answer

77 kts. (after 30 sec. delay)

Answer

70 kts. (after 3 mins )

Answer

140 kts. (after 20 sec. delay).

Question 35

When the APU is supplying the packs, the pack controller sends a demand signal to increase airflow when a zone temperature cannot be satisfied;

Accepted Answer

To the APU ECB

Answer

To the pack ram air inlet flap

Answer

To the pack flow control valve

Answer

To the engine interface units EIUs.

Question 36

The ditching switch when selected

Accepted Answer

Outflow valve, ram air inlet & ventilation extract valves, & the pack flow control valves close

Answer

The outflow valve closes when in MAN mode

Answer

Ram air inlet and ventilation extract valves open

Answer

The emergency ram air inlet opens

Question 37

In flight with pressure controller 1 in use, if it fails

Accepted Answer

Transfers automatically to controller 2

Answer

You have to use the manual control

Answer

You have to select manually controller 2

Answer

You have to set the landing elevation

Question 38

In normal operation, pressurisation is

Accepted Answer

Fully automatic

Answer

Manually controlled

Answer

Automatic, but landing elevation must be manually set

Answer

Remaining automatic only when CPC 1 is in use

Question 39

The outflow valve is powered by

Accepted Answer

One of three electric motors

Answer

One of two electric motors

Answer

Three mechanically linked electric motors

Answer

One of three pneumatic actuators

Question 40

During ground function operation, the outflow valve is

Accepted Answer

Fully open

Answer

Fully closed

Answer

Positioned according to FMGS demands

Answer

Operating in abort mode

Question 41

To see the position of the outflow valve, it is necessary to call ECAM ;

Accepted Answer

Press. page

Answer

Cond. page

Answer

Bleed page

Answer

Vent page

Question 42

Two identical, independent, automatic digital pressurisation controllers are used for system control

Accepted Answer

One controller active, one in standby

Answer

Both controllers monitored by FMGC

Answer

No controller for climb phase and No. 2 controller in cruise and descent

Answer

No. 1 controller for climb and No. 2 for descent.

Question 43

Which controller position generates excess cabin altitude and pressure signals for ECAM indication in manual mode

Accepted Answer

No. 1

Answer

Both

Answer

No. 2

Answer

Neither

Question 44

When ram air Pb set to ON, (& ditching not selected), the outflow valve will open when

Accepted Answer

Diff. press. < 1 psi

Answer

Diff. press. >1.5 psi

Answer

Diff. press. < 3 psi

Answer

Diff. press. > 1 psi.

Question 45

The purpose of the safety valves is to avoid

Accepted Answer

Excessive positive pressure differential, and excessive negative differential

Answer

Opening cabin doors whilst still pressurised

Answer

Rain entering avionics bay

Answer

Landing with the aircraft pressurised

Question 46

The safety valves are operated

Accepted Answer

Pneumatically

Answer

Electrically

Answer

Hydraulically

Answer

By the FMGC

Question 47

When landing elevation is set to auto, the landing elevation is sent to the controller from

Accepted Answer

FMGS

Answer

FCU

Answer

ADIRS

Answer

F/O baro ref.

Question 48

When mode sel. is set to manual, the outflow valve is controlled by signals sent via controller 1 or 2

Accepted Answer

False

Answer

True

Answer

Controllers 1 and 2

Answer

Only controller 2

Question 49

On ECAM Cab press. page, the outflow valve indicator changes to amber if

Accepted Answer

It is fully open in flight

Answer

It is fully closed

Answer

It is fully open on the ground

Answer

It is not fully open on the ground.

Question 50

On ECAM Cab. press. page, the safety valve indication changes to amber if:

Accepted Answer

One safety valve is open

Answer

Both safety valves are fully open

Answer

Both safety valves are fully closed

Answer

Both safety valves do not open

Question 51

On ECAM cab. press. page, the cabin altitude indication changes to red when cabin altitude is

Accepted Answer

> 9,550 ft

Answer

> 14,000 ft

Answer

> 8,500 ft

Answer

> 8,800 ft

Question 52

Following a system 1 fault

Accepted Answer

System 2 takes over automatically without any crew action

Answer

Master caution is activated and the crew must take ECAM actions

Answer

System 2 must be selected by the crew

Answer

The crew must manually operate the system.

Question 53

Cabin pressurisation starts at

Accepted Answer

Take off power selection. (prepressurisation)

Answer

Engine start

Answer

Lift off

Answer

Selection of climb power

Question 54

The pressure safety valve opens at

Accepted Answer

8.6 psi

Answer

8.06 psi

Answer

9.0 psi

Answer

7.6 psi

Question 55

In fully automatic mode, cabin pressurisation is optimised by using information from

Accepted Answer

FMGC, landing field elevation & destination QNH, ADIRS static press. baro.
correction and EIU thrust lever angle info.

Answer

Actual cruise level and selected landing elevation

Answer

Selected cabin altitude

Answer

Selected landing elevation

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1. Aircon/Press/Vent.

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