A320: Electrics | 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!

Q13348 If TR 1 fails what Supplies the DC. ESS. BUS?

The ESS TR via the AC Essential Bus.

The TR on the opposide side of the system.

The ESS TR via AC Bus Two.

The Batteries.

Correct!

Incorrect!

Q13344 Which Busses are Supplied by the EMER GEN?

DC Essential bus only

DC Essential Bus & AC Essential Bus

AC Essential bus only.

DC Essential Bus, AC Essential Bus, DC Ess Shed, AC Ess Shed

Correct!

Incorrect!

Q13342 What causes the RAT to Auto-Extend?

Loss of AC Bus Two.

Loss of AC Bus One.

Loss of AC Bus One & AC Bus Two and airspeed is > 100kts

Loss of BLUE Hydraulic pressure and airspeed is greater than 100 knots.

Correct!

Incorrect!

Q13336 Max APU KVA?

Correct!

Incorrect!

Q13337 What Drives the Emergency Generator?

YELLOW Hydraulic System

GREEN Hydraulic System

RAT

BLUE Hydraulic system

Correct!

Incorrect!

Q13334 How does the APU Generator differ from the Engine Generators?

It can only supply the left side of the aircraft.

It doesn't.

It can power both sides of the electrical system.

It provides a different KVA.

Correct!

Incorrect!

Q13345 How is an IDG Disconnected?

Pressing the guarded bus button for more than 3 seconds. The engine does not need to be running.

Pressing the guarded bus button for no more than 3 seconds. The engine does not need to be running.

Pressing the guarded bus button for no more than 3 seconds. The engine must be running/windmilling.

Pressing the guarded bus button for more than 3 seconds. The engine must be running/windmilling.

Correct!

Incorrect!

Q13346 What does the BUS TIE Pushbutton do when Selected OFF?

Aircraft reverts to battery power.

Nothing happens on the ground.

Isolates both sides of the electrical system. APU / Ground Power are not available.

Isolates both sides of the electrical system.

Correct!

Incorrect!

Q13341 Can the APU be started on battery power in-flight?

No battery power is not sufficient.

Yes, APU starting is available throughout its entire envelope.

Yes, only if voltage is greater 26.5V

Yes, but only below 25,000ft

Correct!

Incorrect!

Q13339 What can Supply AC ESS Bus?

AC Bus One & AC Bus Two

AC Bus One, AC Bus Two, Emergency Generator, Batteries via Static Inverter

Batteries via Static Inverter

Emrgency Generator

Correct!

Incorrect!

Q13350 From the Electrical SD, how can you tell that the Batteries are being Charged?

Arrowheads pointing towards the batteries from the DC Bat Bus and current greater than 1A Green.

Arrowheads pointing out of the batteries to the DC Bat Bus and current greater than 1A in Amber.

They become amber boxed

Arrowheads pointing towards the batteries from the DC Bat Bus and current greater than 1A Amber.

Correct!

Incorrect!

Q13340 On Battery Power only (in flight), which Busses are supplied?

Hot Buses only.

DC Essential, AC Essential via Static Inverter, Hot Buses.

AC Bus One & Two

DC Essential, AC Essential via Type Rectifier, Hot Buses.

Correct!

Incorrect!

Q13335 Max Engine KVA?

Correct!

Incorrect!

Q13338 Max Emergency Generator KVA?

Correct!

Incorrect!

Q13352 The Battery Volts check requires which Switch(es) to be OFF?

Bat 1 pushbutton

Bat 1 & 2 pushbuttons

At least 1 battery pushbutton

Bat 2 pushbutton

Correct!

Incorrect!

Q13343 If the RAT Fails to Auto-extend, what should you do?

Push the RAT MAN ON (guarded) pb

Panic.

Push the MAN ON (guarded) push button

Increase airspeed above 100 kts

Correct!

Incorrect!

Q13354 When in flight, is it permissible to reset a tripped CCT breaker?

No it is not.

QRH only.

As dictated by QRH only

At captain's discretion

Correct!

Incorrect!

Q13347 AVAIL (green) on the EXT PWR Pushbutton means what?

External power is plugged in.

External power is plugged in and parameters are normal.

The ground crew are able to connect a ground power unit.

External power may be available, although it is not in use as parameters are not normal.

Correct!

Incorrect!

Q13351 What is the Minimum Battery Volts at the Start of the day?

27.5V

25.5V

24.5V

26.5V

Correct!

Incorrect!

Q13349 How is GEN 1 switched OFF in the Smoke CONFIG?

The GEN remains operationa and the GEN contact Is closed. Fuel pumps remain powered.

Master Switch to OFF.

The GEN remains operational, but the GEN contact is closed. Fuel pumps on the left hand side are lost.

Automatically.

Correct!

Incorrect!

Q13353 How long (approx.) does it take to Charge the Batteries?

18 minutes

25 minutes

15 minutes

20 minutes

Correct!

Incorrect!

Quiz: A320: Electrics