Electrical

Question 0

An amber SMOKE annunciation in the GEN 1 pb

indicates what?

Answer 0

Smoke in the avionics ventilation system

Question 1

Are there any procedures in the pilot handbook which direct us to use the EMER GEN test switch?

Answer 1

No, this is a maintenance function

Question 2

If the GEN 1 line pb is selected to off, what becomes the power source to AC bus #1?

Answer 2

GEN 2, through the bus tie

Question 3

After selecting the GEN 1 LINE pb to off, is there any equipment still powered from GEN 1?

Answer 3

Yes, one fuel pump in each tank

Question 4

What will cause the RAT to extend automatically?

Answer 4

Loss of AC BUS 1&2 with airspeed above 100 knots

Question 5

In-flight with the airplane powered normally (both generators), we push the RAT MAN ON switch. What will power the AC and DC ESS buses?

Answer 5

The emergency generator

Question 6

What is the difference between this RAT MAN ON switch and the switch labeled similarly on the hydraulic panel?

Answer 6

Emergency generator operation through the electrical RAT MAN ON.

Question 7

What does the FAULT light in the RAT & EMER GEN indicate?

Answer 7

FAULT light is illuminated if the emergency generator is not supplying power when AC BUS 1 & 2 are not powered

Question 8

What does a fault light in the BAT pb indicate?

Answer 8

Charging current is outside limits

Question 9

What does the indication ___% in the GEN 1 icon indicate?

Answer 9

GEN 1 current load

Question 10

Upon entering the flight deck prior to the first light of the day, what should the battery voltage be?

Answer 10

Greater than or equal to 25.5 V

Question 11

What is the primary purpose of the batteries?

Answer 11

Emergency electrical and APU starting

Question 12

During preflight, what options are available if the battery voltage for either battery is below 25.5 V?

Answer 12

Either replace the battery or using external power, complete a 20 minute charge, and recheck for sufficient voltage

Question 13

During the safety and power on checklist, why is the battery check accomplished with the batteries in the OFF position?

Answer 13

To determine the exact battery voltage without the batteries powering any buses.

Question 14

If the BATT switches are in AUTO position overnight without any other power, will the batteries discharge completely?

Answer 14

No

Question 15

Under what conditions are the batteries connected to the DC battery bus?

Answer 15

When needed for APU start, when in emergency electrical configuration less than 100 knots, or batteries require charging (voltage < 25.5 V)

Question 16

When is the main galley bus automatically shed?

Answer 16

Single generator operation

Question 17

If the main galley bus sheds automatically on a single generator or power source, how is it powered on the ground?

Answer 17

All galley buses are supplied with APU or external power

Question 18

What does the FAULT light in the IDG pushbutton indicate?

Answer 18

High oil temperature or low oil pressure

Question 19

What precautions exist when disconnecting and IDG?

Answer 19

Do not hold the disconnect pb for more than three seconds. The engine must be running or windmilling.

Question 20

If the pilot inadvertently pushes the IDG disconnect, can it be reconnected?

Answer 20

Not in flight

Question 21

The normal priority for supplying electrical power to the AC buses is:

Answer 21

Engine generators, ext power, APU generator

Question 22

What does the FAULT light indicate in the GEN 1?

Answer 22

A fault has been detected

Question 23

What is the normal power source for AC ESS bus?

Answer 23

AC BUS 1

Question 24

Can AC 2 be used to power the AC ESS bus?

Answer 24

Yes, through the AC ESS FEED pb (when selected)

Question 25

What does the FAULT light in the AC ESS FEED pb indicate?

Answer 25

A fault has been detected, follow the ECAM procedure

Question 26

What does the green AVAIL light indicate in the EXT PWR pb?

Answer 26

External power is connected and within normal parameters

Question 27

If the AVAIL light is present in the EXT PWR pb and a green AVAIL light is on the APU, what is the source of electrical power (engines shut down)?

Answer 27

The APU. The EXT PWR must be selected on.

Question 28

If both engines were started at the gate using external electrical power, with the EXT PWR ON light still be illuminated?

Answer 28

Yes, however the engine driven generators are supplying power to the aircraft

Question 29

If EXT power is in use during APU start, does the green AVAIL light in the APU start pb indicate it is now the source of ship’s electrical power?

Answer 29

No, EXT has priority over the APU. The green APU AVAIL light indicates that the APU generator is available.

Question 30

In the emergency electric configuration, when will the DC BAT bus be automatically connected to the batteries?

Answer 30

Loss of AC buses 1 & 2, below 100 knots

Question 31

If landing in the emergency electric configuration and speed decreases below 50 knots, the AC ESS bus is shed. What would be the indication to the crew?

Answer 31

Loss of display units

Question 32

What is the significance of the green circuit breakers?

Answer 32

Monitored by ECAM

Question 33

Why do the wing tip brake circuit breakers have red caps installed on them?

Answer 33

To prevent in-flight resetting

Question 34

The FASTEN SEAT BELT, NO SMOKING, and EXIT signs come on automatically when the cabin altitude exceeds ____ feet, regardless of the respective switch position.

Answer 34

11,300 feet

Question 35

When will the emergency lighting system aluminate automatically?

Answer 35

When the normal aircraft electrical power system fails

Question 36

What is included in the aircraft emergency lighting?

Answer 36

Overhead emergency lights, exit signs, and floor proximity emergency escape path marking system