A320 Air Conditioning System (ATA21)

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A320 Air Conditioning System (ATA21) Quiz

This quiz contains 20 question on Airbus 320 (A320) and time limit is 30 min.

All the question are compulsory for the submission of the quiz.

The number of attempts allowed is unlimited.

Note : The question will be picked randomly from a question bank hence few question can repeat every time you attempt the quiz

ALL THE BEST

Under what conditions should the pack flow controller be set to LO?

In cold conditions to achieve a higher cabin temperature range.

With a high passenger load to reduce cabin temperature

With a low passenger load to increase cabin temperature

With a low passenger load to reduce bleed air demand and improve fuel efficiency

None

What is the normal maximum cabin altitude?

0 ft

8,000 ft

800 ft

14,000 ft

None

When does normal depressurization occur?

100 feet AGL above touchdown.

On landing touchdown

It is complete 1 minute after touchdown.

After flap retraction.

None

What is the maximum altitude associated with the pressurization system?

41,100 feet

39,100 feet

41,000 feet

39,500 feet

None

Under what conditions should the pack flow controller be set to HI?

In cold conditions to achieve a higher cabin temperature range.

With a high passenger load in hot conditions in order to help reduce the cabin temperature

With a low passenger load to increase cabin air flow.

None

The temperature of each aircraft zone is optimized by means of:

A HOT AIR valve.

A ZONE control valve.

A TRIM AIR valve.

A PACK FLOW VALVE

None

How many temperature selectors are there on the A320? How many temperature zones are there?

Four rotary temperature selectors and four zones.

Three rotary temperature selectors and one zone.

Three rotary temperature selectors, one each for the cockpit zone, the forward cabin zone, and the aft cabin zone.

Two rotary temperature selectors, one for the cockpit and first class zone and one for the aft cabin zone.

None

What position do the pack valves go to in the event of a loss of the bleed system pressure?

They remain in their last position.

Mid position

Closed.

Full open.

None

It is permissible to use simultaneously packs and LP ground unit during long stops in a hot airfield

Yes

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

Yes, if external temperature is greater than 50 deg C

None

10.

The Ram Air valve:

Should be opened for increased ventilation while on the ground.

Must be manually activated.

Should be opened for increased ventilation while in flight.

Will open automatically after engine start.

None

11.

What limitation is associated with the ram air valve?

Will not open if the DITCHING switch is off.

Operation is automatic.

Do not open if cabin pressure is greater than 1 psi.

Only open while on the ground.

None

12.

Pressurization controllers receive inputs from:

LGCIU’s and the MCDU.

LGCIU’s and pitot static sources.

MCDU, pitot static sources and LGCIU’s.

LGCIU, ADIRU, FMGS, and EIU.

None

13.

The PACK FLOW controller is set to NORM and yet the ECAM display shows PACK FLOW to be high. How is this possible?

With cold outside air conditions the PACK FLOW is automatically increased to help increase the cabin temperature.

As the engines are not running the PACK FLOW indicators are at the position they were selected to at the last shut down

HI flow is automatically selected regardless of PACK FLOW selector position because air is only being supplied by the APU.

As no bleed air is flowing the PACK FLOW valves are spring loaded to the fully open position.

None

14.

Pressurization is normally automatic. Can you interfere with it?

Yes, manually set landing elevation using the LND ELEV AUTO selector.

Yes, CABIN PRESS MODE SEL to OVERRIDE and MAN V/S CTL toggle switch.

None

15.

Hot air pressure regulating valve:

Is spring loaded open in the absence of air

Opens automatically if the cabin trim air valve fails

Opens automatically in case of duct overheat

Regulates the pressure of hot air tapped upstream of the packs

None

16.

Aft cargo temperature indications may be found on which ECAM page(s)?

Only the BLEED page.

Only the CAB PRESS page.

The CRUISE page and the COND page.

Only the CRUISE page.

None

17.

Hot air fault light illuminates on the air conditioning panel

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

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

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

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

None

18.

Trim air valve, each one optimizes the temperature by:

Adding re-circulated air

Adding fresh air

Adding hot air

Modulating of pack flow

None

19.

Conditioned air is distributed to

Cockpit, avionics bay and cabin

Cockpit, cabin and holds 1 and 2 only

Cockpit, cargo bays and cabin

Cockpit, fwd and aft cabins

None

20.

Pack flow control valve:

Is spring loaded to open

Opens automatically during engine starting

Is pneumatically operated and electrically controlled

Electrically operated and pneumatically controlled

None

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