Vayudoot Aviation

1. Conditioned air is distributed to:

Cockpit, cargo bays and cabin

Cockpit, fwd and aft cabins

Cockpit, cabin and holds 1 and 2 only

Cockpit, avionics bay and cabin

2. If you select a position other than the AUTO detent on the LDG ELEV AUTO selector, how can you see the actual landing elevation value?

On the PRESS page

On the ECAM CRUISE

On the ECAM CRUISE or the PRESS page.

3. The purpose of the safety valve is to avoid:

Both are correct.

Excessive positive pressure differential.

Excessive negative differential.

4. Avionics ventilation system indications may be found on which ECAM page(s)?

Only the CAB PRESS page.

The in-flight ECAM cruise page.

Only the BLEED page.

The in-flight ECAM cruise page and the CAB PRESS pages.

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

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

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

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

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

6. Which of the following statements is correct concerning conditioned air?

Recirculating fans draw cabin air to a mixing unit where conditioned air is added.

Hot trim air is added to the mixing unit before distribution to each zone.

Recirculated air, conditioned air and hot trim air are mixed then distributed to each zone.

Conditioned air and trim air are mixed then distributed to each zone.

7. The safety valves are operated:

By the FMGC

Pneumatically

Hydraulically

Electrically

8. Once set to “ON” the air conditioning packs operate:

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

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

Automatically and independently of each other

Normally, but the output of one affects the other

9. Aft cargo ventilation is controlled by:

The zone controller and the SDCU.

The aft cargo rotary selector knob.

The cargo ventilation controller and the aft cargo rotary selector knob.

The cargo ventilation controller.

10. When using APU bleed to supply the packs, with the pack flow selector at LO, the pack airflow is:

80% of normal

Normal

120% of normal

110% of normal

11. When does normal pressurization occur?

Pressurization occurs during taxi

After rotation.

After second engine start.

Pressurization occurs during the takeoff roll.

12. 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 closes and the trim air valves close.

13. At what cabin altitude do you get an ECAM warning?

8,800 feet.

9,550 feet

14,000 feet.

9,000 feet

14. Pressurization is normally automatic. Can you interfere with it?

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

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

Both are correct.

15. Pack controller, primary and secondary channel failure

The pack is closed

The packs deliver a fixed temperature of 20 deg.C

Pack outlet temperature is controlled to between 5 and 30 deg.C by the anti-ice valve

16. In case of zone controller primary and secondary channel failure, what temperatures are maintained by Packs 1 and 2?

20 deg.C for Pack one and 10 deg.C for Pack two

15 deg.C for both.

25 deg.C both.

24 deg.C for Pack one and 15 deg.c for Pack two.

17. Both pressurization auto controllers are set by the active flight plan loaded in the MCDU. The QNH entry on the MCDU Approach Performance page refines the depressurization schedule for the landing.

False

True

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

20 deg.C for pack one and 10 deg.C for pack two

15 deg.C both

25 deg.C both

24 deg.C for pack one and 15 deg.C for pack two

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

Passing air through a skin heat exchanger

Adding avionics bay air

Extracting air overboard

'Adding air conditioned air to the flow

20. In case of total zone controller failure:

Hot air and trim air valves open and packs deliver air at a fixed temperature (15 deg.C pack 1 and 10 deg.pack2)

Hot air and trim air valves open and packs deliver air at a fixed temperature (20 deg.C pack 1 and 10 deg.pack2)

Hot air and trim air valves close and packs deliver air at a fixed temperature (20 deg.C pack 1 and 10 deg.pack2)

Hot air and trim air valves close and packs deliver air at a fixed temperature (15 deg.C pack 1 and 10 deg.pack2)

21. What does the CARGO HEAT HOT AIR FAULT light indicate?

The system will reset if the ISOL VALVE switch is ON.

The Aft Cargo Pressure Regulating valve closes.

A duct overheat is detected.

All of above.

22. What are the different sources of air for air conditioning and pressurization?

Engine bleed air and recirculated air (only on ground)

Engine bleed air and recirculated air, or if selected, APU bleed air and recirculated air

Engine bleed air and recirculated air.

Engine bleed air only.

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

Only the CRUISE page.

Only the BLEED page.

The CRUISE page and the COND page.

Only the CAB PRESS page.

24. When mode selector is selected to manual, the outflow valve is controlled by signals sent via controller 1 or 2

False

True

25. What is the function of the ram air valve?

Cargo ventilation & avionics cooling.

Emergency smoke removal and ventilation in the event of dual pack failure.

Avionics cooling.

'Ventilation while on the ground.

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

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

With a high passenger load to reduce cabin temperature

In cold conditions to achieve a higher cabin temperature range.

With a low passenger load to increase cabin temperature

27. In normal operation, pressurization is:

Remaining automatic only with CPC 1 is in use.

Automatic, but landing elevation must be manually set

Fully automatic

Manually controlled

28. When the pack flow control knob is positioned to HI, air flow is:

120% of normal rate.

150% of normal rate.

80% of normal rate.

100% of normal rate.

29. During Ground function operation, the outflow valve is:

Positioned according to FMGS demands.

Fully open.

Fully closed.

30. Trim air valve, each one optimizes the temperature by:

Adding re-circulated air

Adding fresh air

Adding hot air

Modulating of pack flow

31. What is the maximum altitude associated with the pressurization system?

41,000 feet

39,500 feet

41,100 feet

39,100 feet

32. The Ram Air Inlet Flaps remain open during takeoff and landing to allow extra airflow during high power situations.

False

True

33. Which statement is correct regarding illumination of the amber AFT ISOL VALVE fault light?

All of the above.

Means that either the inlet or outlet isolation valve(s) disagrees with the switch position.

Automatically closes the aft cargo compartment isolation valves.

Indicates that the extract fan has stopped.

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

2 psi.

0 psi.

8.6 psi.

1 psi.

35. How many trim air valves are there?

Three: one each for the cockpit zone, the forward cabin zone, and the aft cabin zone.

One trim air valve.

Four: one each for the cockpit zone, the first class zone, and two for the aft zone.

Two: one for the cockpit and first class zone, and one for the cabin zone.

36. Which controller generates excess cabin altitude and pressure signals for ECAM indication in manual mode:

No.1

Both

No.2

Neither

37. Emergency ram air inlet. When set to “ON” the ram air valve will open and supply airflow:

In any case

Diff. press < 1 psi, and ditching not selected

Provided ditching is selected.

Provided ditching is not selected

38. When would you select RAM AIR ON?

If additional cooling is required on the ground.

Dual pack failure or smoke removal.

When pack temperatures are too high.

When there is smoke in the cabin.

39. Pack controller, primary channel failure.

The secondary computer operates as a backup mode and regulation is not optimized

Pack is lost

Pack outlet temperature is controlled at 15 deg.C

The secondary computer takes over (all functions as normal)

40. The Ram Air valve:

Will open automatically after engine start.

Must be manually activated.

Should be opened for increased ventilation while in flight.

41. Temperature control is automatic and is regulated by:

The pack flow control valves only.

Zone controllers

Zone controllers, pack 1 and 2 controllers

Pack 1 and 2 controllers

42. The outflow valve is powered by:

One of two electric motors.

Three mechanically linked electric motors.

One of three electric motors.

43. Trim air valves are controlled by:

The pack controller

Hot air pressure regulating valve.

Anti-ice valve.

The zone controller.

44. The pack flow control valve closed automatically in case of:

Bleed valve failure, pack outlet pressure increase

Trim air valve failure

All of the above.

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

45. How many outflow valves are there?

One valve with two doors.

One valve with one door

Two valves with only one door visible.

Two valves (one main + one back-up) with only two doors visible.

46. The trim air valves are _____ controlled by the zone controller

Hydraulically

Pneumatically

Electrically

None of the above

47. The temperature of the air that exits the compressor section is displayed above the Pack Flow. It normally displays green, but displays amber for temperatures over:

180 deg.C

200 deg.C

250 deg.C

230 deg.C

48. During landing run, Ram Air Inlet flaps open when speed is less than:

85 kts (after 20 seconds delay)

77 kts (after 30 seconds delay

70 kts (after 20 seconds delay)

70 kts (after 1 minute delay)

49. How can you change controllers during flight?

Cycle the LDG ELEV AUTO knob out of the AUTO position then back to AUTO.

Cycle the cabin pressurization MAN V/S CTL switch

Cycle the CABIN PRESS MODE SEL pushbutton to the MAN position then back to AUTO.

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

Anti-ice valve

Ram Air Valve

Trim air valve.

Hot air pressure regulating valve

Question Bank

Questions for Air Conditioning/Pressurization/Ventilation A320