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!

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

25.5V

24.5V

27.5V

26.5V

Correct!

Incorrect!

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

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

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

External power is plugged in and parameters are normal.

External power is plugged in.

Correct!

Incorrect!

Q13338 Max Emergency Generator KVA?

Correct!

Incorrect!

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

15 minutes

18 minutes

20 minutes

25 minutes

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!

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

Aircraft reverts to battery power.

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

Nothing happens on the ground.

Isolates both sides of the electrical system.

Correct!

Incorrect!

Q13339 What can Supply AC ESS Bus?

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

AC Bus One & AC Bus Two

Emrgency Generator

Batteries via Static Inverter

Correct!

Incorrect!

Q13342 What causes the RAT to Auto-Extend?

Loss of AC Bus Two.

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

Loss of AC Bus One.

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

Correct!

Incorrect!

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

Yes, only if voltage is greater 26.5V

Yes, but only below 25,000ft

Yes, APU starting is available throughout its entire envelope.

No battery power is not sufficient.

Correct!

Incorrect!

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

Automatically.

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.

Correct!

Incorrect!

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

As dictated by QRH only

No it is not.

At captain's discretion

QRH only.

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 more than 3 seconds. The engine must be running/windmilling.

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.

Correct!

Incorrect!

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

It can power both sides of the electrical system.

It can only supply the left side of the aircraft.

It doesn't.

It provides a different KVA.

Correct!

Incorrect!

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

The ESS TR via AC Bus Two.

The Batteries.

The TR on the opposide side of the system.

The ESS TR via the AC Essential Bus.

Correct!

Incorrect!

Q13337 What Drives the Emergency Generator?

RAT

YELLOW Hydraulic System

BLUE Hydraulic system

GREEN Hydraulic System

Correct!

Incorrect!

Quiz: A320: Electrics