A320: Pneumatics & Air Conditioning | Quiz - Pilot George, L3 Airline Academy (CTC Aviation) Cadet Blog

While I have tried to ensure the information in this quiz is accurate, it is your own responsibility to check it against your airline / manufacturer manuals. With that said, if you spot any obvious errors then please let me know the question number and I'll aim to put it right!

Q14379 What happens if an ACSC has a LANE failure?

No degration in operation. The other LANE can handle the system.

The Air Conditioning System is stuck at the present temperatres.

Loss of the pack on that side, hot air value closes, system specific trim air values close.

The Air Conditioning System Fails and Trim Air Values are lost.

Correct!

Incorrect!

Q14365 With the XBLEED switch in AUTO, what determines XBLEED value position?

Total loss of Bleed air.

Loss of Bleed Air from both.

The presence of APU bleed air, which when present opens the value.

The presence of APU bleed air, which when present closes the value.

Correct!

Incorrect!

Q14363 How is Bleed Air Temperature regulated?

Through the use of a pre-cooler upstread of the bleed value.

Through the use of pre-cooler, downstream of the bleed value.

Trim air.

Fan blade air.

Correct!

Incorrect!

Q14368 When does the bleed air temperature / pressures box turn amber on the SD?

High/Low Pressure & High/Low Temperature

Overheat only.

Temperatures outside of predefined limits

High Pressure & High Temperatures.

Correct!

Incorrect!

Q14356 What happens if BMC fails?

Leak detection is lost.

The adjacent BMC takes over the monitoring of the bleed system.

ECAM warnings are lost.

Associated bleed value closed automatically.

Correct!

Incorrect!

Q14370 What should you NOT do if GD LP Air is connected to the pneumatics system?

Use APU Bleed Air at the same time. This prevents adverse effects on the Air Conditioning System.

Use packs at the same time. This prevents adverse effects on the Air Conditioning system

Close off the XBLEED value.

Open the XBLEED value.

Correct!

Incorrect!

Q14371 What should you NOT do if HP Air Starter is connected to the pneumatics system?

Use bleed air from the APU BLEED at the same time to prevent any adverse effect on the Bleed Air System.

Use Engine Bleed.

Use GP LP Air.

Close the XBLEED value.

Correct!

Incorrect!

Q14382 What happens when the Ram Air Pushbutton is selected ON?

RAM Air Inlet open providing the Ditching push button isn't selected on.

Nothing if not above a predefined speed.

RAM Air Inlet opens

The RAT deploys

Correct!

Incorrect!

Q14362 What is the typical Bleed Air Pressure?

65 psi plus or minus 5.

Plus or minus 65 psi.

45 psi.

45 psi, plus or minus 5.

Correct!

Incorrect!

Q14377 What conditions could cause the Pack Flow to be Higher than that Selected on the Overhead Panel?

Single-pack operation, APU is supplying bleed air, Temperature demand can not be satisfied with LO flow selected.

On the ground with both engines running.

Cooling of pack systems is required.

Single-pack operation and APU is unavailable.

Correct!

Incorrect!

Q14384 [RAM AIR] What is the outflow value position at or greater than 1 PSI of differential pressure?

Opens fully.

Closes.

Opens to 50%

Remains Normal

Correct!

Incorrect!

Q14373 What controls the Packs and Trim Air Values?

The Air Conditioning System Controllers (ACSCs)

Fan blade air.

The Trim Air Values.

The Bleed Value.

Correct!

Incorrect!

Q14374 What happens to the air conditioning system during Engine Start?

Packs are turn off to ensure optimum bleed air for engine start.

The cabin goes quiet.

It operates normally.

Pack flow is reduced to ensure optimum bleed air for engine start.

Correct!

Incorrect!

Q14355 How many BMCs are there?

Two

One

Three

Four

Correct!

Incorrect!

Q14361 How is Bleed Air Pressure regulated?

The ACSCs

The Pack Flow Control Values.

The Trim Air Values.

The Bleed Value.

Correct!

Incorrect!

Q14380 What happens if an ACSC has a Double LANE failure?

The Air Conditioning System Fails and Trim Air Values are lost.

No degration in operation. The other ACSC can handle the system.

The Air Conditioning System is stuck at the present temperatres.

Loss of the pack on that side, hot air value closes (ACSC1 only), system specific trim air values close.

Correct!

Incorrect!

Q14372 How are cabin zone temperatures individual controlled?

Fan blade air.

The Trim Air Values.

The Air Conditioning System Controllers (ACSCs)

The Bleed Value.

Correct!

Incorrect!

Q14381 When does a Pack Overheat FAULT light, (on OHP) extinguish?

On engine shutdown.

When the pack is turned off.

When pack flow is reduced on the overhead air conditioning panel.

When the heating condition ceases.

Correct!

Incorrect!

Q14360 During Normal operation, when would the HP value open?

At TOGA power.

With pilot intervention on the overhead panel.

When IP pressure is insufficient for the demand.

At low thrust settings.

Correct!

Incorrect!

Q14358 If a BMC fails, what happens to the bleed values?

They fully close.

They fully open.

They partially close.

Control over them is lost.

Correct!

Incorrect!

Q14369 Is WAI (Wing Anti Ice) allowed if only one bleed system is in operation?

No, precooler performance is degraded.

Yes but PACK FLOW selector must be set to LO, due to precooler performance.

Yes but to ensure precooler performance one pack must be switched off when using anti-ice.

Yes.

Correct!

Incorrect!

Q14375 What happens when a Duct Overheat occurs in the wings?

That duct is isolated.

LVL 1 Caution only.

The respective pack must be switched off.

HOT AIR FAULT light illuminates on the overhead panel and duct is isolated.

Correct!

Incorrect!

Q14383 What Limitation(s) apply to the Opening of the Ram Air Valve?

Speed and Altitude

Differential Pressure

Ditching not selected on

Speed

Correct!

Incorrect!

Q14385 [RAM AIR] What is the outflow value position less than 1 PSI of differential pressure?

Opens fully.

Opens to 50%

Closes.

Remains Normal

Correct!

Incorrect!

Q14366 What happens if a leak is detected when the XBLEED switch is in the AUTO position?

The value closes.

Nothing happens.

The value closes. The exception is engine start.

The value opens to allow APU to assist the packs in fullfilling system demand.

Correct!

Incorrect!

Q14376 When does the Ram Air Inlet Flap close?

Air Conditioning System Fault.

<100' RA

During takeoff when land gear struts are compressed. During landing when speeds are above 70 knots (Re-opens 20sec after< 70 knots).

Landing Gear retraction/extension

Correct!

Incorrect!

Q14357 What is lost with the failure of BMC1?

Nothing, BMC2 takes over.

APU BLEED LEAK warning only.

ENG BLEED LEAD warnings for ENG1 and APU BLEED LEAK warning

ENG BLEED LEAD warnings for ENG2 and APU BLEED LEAK warning

Correct!

Incorrect!

Q14364 What temperature is bleed air regulated to within the pre-cooler?

50 degrees

100 degrees

200 degrees

Room temperature

Correct!

Incorrect!

Q14378 The Zone Temperature Controllers can be Set to what Range of temps?

COLD = 10 degrees, 12 o'clock = 21 degrees, HOT = 30 degrees.

COLD = 9 degrees, 12 o'clock = 22 degrees, HOT = 30 degrees.

COLD = 15 degrees, 12 o'clock = 20 degrees, HOT = 35 degrees.

COLD = 18 degrees, 12 o'clock = 24 degrees, HOT = 30 degrees.

Correct!

Incorrect!

Q14359 On the SD, when/how is GND displayed?

In all flight phases, in white.

When on the ground, in white.

When on the ground, in green.

In all flight phases, in green.

Correct!

Incorrect!

Q14367 In normal operation which bleed air source has priority?

Ground Air

APU

RAM Air

Engine Bleed

Correct!

Incorrect!

Quiz: A320: Pneumatics & Air Conditioning