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!

Q14362 What is the typical Bleed Air Pressure?

45 psi, plus or minus 5.

45 psi.

Plus or minus 65 psi.

65 psi plus or minus 5.

Correct!

Incorrect!

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

Overheat only.

High Pressure & High Temperatures.

High/Low Pressure & High/Low Temperature

Temperatures outside of predefined limits

Correct!

Incorrect!

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

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

No, precooler performance is degraded.

Yes.

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

Correct!

Incorrect!

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

When on the ground, in white.

In all flight phases, in green.

When on the ground, in green.

In all flight phases, in white.

Correct!

Incorrect!

Q14373 What controls the Packs and Trim Air Values?

Fan blade air.

The Bleed Value.

The Air Conditioning System Controllers (ACSCs)

The Trim Air Values.

Correct!

Incorrect!

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

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

Total loss of Bleed air.

Loss of Bleed Air from both.

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

Correct!

Incorrect!

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

Closes.

Opens fully.

Remains Normal

Opens to 50%

Correct!

Incorrect!

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

Close the XBLEED value.

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

Use GP LP Air.

Use Engine Bleed.

Correct!

Incorrect!

Q14356 What happens if BMC fails?

Leak detection is lost.

ECAM warnings are lost.

Associated bleed value closed automatically.

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

Correct!

Incorrect!

Q14363 How is Bleed Air Temperature regulated?

Trim air.

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

Fan blade air.

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

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 = 18 degrees, 12 o'clock = 24 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.

Correct!

Incorrect!

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

At low thrust settings.

At TOGA power.

When IP pressure is insufficient for the demand.

With pilot intervention on the overhead panel.

Correct!

Incorrect!

Q14355 How many BMCs are there?

One

Three

Four

Two

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.

Open the XBLEED value.

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

Close off the XBLEED value.

Correct!

Incorrect!

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

They fully open.

They partially close.

Control over them is lost.

They fully close.

Correct!

Incorrect!

Q14379 What happens if an ACSC has a LANE failure?

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.

The Air Conditioning System is stuck at the present temperatres.

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

Correct!

Incorrect!

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

Nothing if not above a predefined speed.

RAM Air Inlet opens

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

The RAT deploys

Correct!

Incorrect!

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

Closes.

Opens to 50%

Remains Normal

Opens fully.

Correct!

Incorrect!

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

On the ground with both engines running.

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

Single-pack operation and APU is unavailable.

Cooling of pack systems is required.

Correct!

Incorrect!

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

When the pack is turned off.

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

On engine shutdown.

When the heating condition ceases.

Correct!

Incorrect!

Q14367 In normal operation which bleed air source has priority?

APU

Ground Air

RAM Air

Engine Bleed

Correct!

Incorrect!

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

Speed and Altitude

Ditching not selected on

Speed

Differential Pressure

Correct!

Incorrect!

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

Nothing happens.

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

The value closes. The exception is engine start.

The value closes.

Correct!

Incorrect!

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

The Air Conditioning System is stuck at the present temperatres.

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

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

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

Correct!

Incorrect!

Q14376 When does the Ram Air Inlet Flap close?

<100' RA

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

Air Conditioning System Fault.

Landing Gear retraction/extension

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.

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

It operates normally.

Correct!

Incorrect!

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

The respective pack must be switched off.

That duct is isolated.

LVL 1 Caution only.

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

Correct!

Incorrect!

Q14372 How are cabin zone temperatures individual controlled?

The Bleed Value.

The Air Conditioning System Controllers (ACSCs)

Fan blade air.

The Trim Air Values.

Correct!

Incorrect!

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

100 degrees

50 degrees

Room temperature

200 degrees

Correct!

Incorrect!

Q14361 How is Bleed Air Pressure regulated?

The ACSCs

The Trim Air Values.

The Pack Flow Control Values.

The Bleed Value.

Correct!

Incorrect!

Q14357 What is lost with the failure of BMC1?

Nothing, BMC2 takes over.

ENG BLEED LEAD warnings for ENG1 and APU BLEED LEAK warning

ENG BLEED LEAD warnings for ENG2 and APU BLEED LEAK warning

APU BLEED LEAK warning only.

Correct!

Incorrect!

Quiz: A320: Pneumatics & Air Conditioning