ELECTRICAL

Question 1

How many generators?

Answer 1

4 including APU

Question 2

How many PMA?

Answer 2

5

Question 3

How many Batteries?

Answer 3

2

Question 4

Where is the ground power receptacle located?

Answer 4

Right rear of aircraft

Question 5

Does RAT provide both electric and hydraulic power?

Answer 5

Yes

Question 6

Does APU have its own battery?

Answer 6

No

Question 7

APU uses which battery to start?

Answer 7

BAT 1

Question 8

How many main busses?

Answer 8

2

Question 9

How many essential busses?

Answer 9

2

Question 10

How many Battery buses?

Answer 10

2. One for each battery

Question 11

How many INIT buses?

Answer 11

2

Question 12

Whats the function of the INIT buses?

Answer 12

Just for minimum loads. 2 screens and a CCD

Question 13

APU controller is on which BAT?

Answer 13

Bat 2

Question 14

How many Master Avionics buses?

Answer 14

2

Question 15

How many cabin bus?

Answer 15

1

Question 16

How many galley bus?

Answer 16

1

Question 17

RAT is connected to which bus?

Answer 17

Right Essential Bus

Question 18

When does the RAT automatically deploy?

Answer 18

Loss of all 3 generators or triple engine failure

Question 19

Which busses charge the batteries?

Answer 19

Left Essential - BAT 1

Right Essential - BAT 2

Question 20

Can the RAT charge the batteries?

Answer 20

Yes. Thru the essential busses

Question 21

Can the APU and External power work together?

Answer 21

No. GPU has priority

Question 22

Will the GPU stay online if you start and engine with it?

Answer 22

No. It kicks offline after the first engine start

Question 23

What does the PMA power?

Answer 23

All 3 FADECS. PMA 4 and 5 power the number 1 and 2 flyby-wire system. PMA 4 and 5 are just extensions to PMA 1 and 2 on engines 1 and 2.

Question 24

Normal generator voltage?

Answer 24

28.5

Question 25

Max generator voltage?

Answer 25

32 volts

Question 26

Max speed with RAT?

Answer 26

260 kt or M8.0

Question 27

Min speed for RAT?

Answer 27

110kts - 130 kts

Question 28

Is there a safety pin for the RAT?

Answer 28

Yes

Question 29

Is the aircraft electrical system AC or DC?

Answer 29

28 Volt DC system

Question 30

How many amps on the generators normally?

Answer 30

400 Amps

Question 31

What is normal battery voltage?

Answer 31

24 Volt

Question 32

Can the RAT charge the batteries?

Answer 32

Yes

Question 33

Does the GPU charge the batteries?

Answer 33

Yes. The essential busses will be powered with the GPU

Question 34

If you are just on battery power in the air, how long would the batteries last?

Answer 34

7 minutes

Question 35

What is the minimum battery voltage required for them to connect to the busses?

Answer 35

18 V

Question 36

What powers the ground service bus?

Answer 36

Battery busses

Question 37

At ambient temperatures below 0°C do not operate the Ground Service Bus (Battery Load). True or False?

Answer 37

True

Question 38

Ground Service Bus operation is limited to 3 minutes by a circuit timer. True or False?

Answer 38

True

Question 39

Does the battery switches need to be on to power the battery busses?

Answer 39

No. The battery busses are also hot battery busses. They are tied directly to the batteries.

Question 40

Do we have generator busses?

Answer 40

No

Question 41

The generators power which busses?

Answer 41

Main busses

Question 42

Generator 3 powers which main bus?

Answer 42

Right Main

Question 43

Left Main bus is powered from which generators?

Answer 43

Gen 1 & 2

Question 44

When will the external power button flash?

Answer 44

External power is connected and at least one engine generator is connected.

Question 45

Is our GPU AC or DC?

Answer 45

DC

Question 46

On the ground, the auto load-shed system is disabled. True or False?

Answer 46

True

Question 47

Where is the GPU connection port located on the airplane?

Answer 47

Right aft side of the airplane

Question 48

Will the ground service bus connect to the batteries if the battery switches are turned on?

Answer 48

No

Question 49

Which switch must be turned on to be able to connect the ground service bus?

Answer 49

GND SERVICING switch located on the maintenance panel must be set to the up position.

Question 50

When is it recommended to disconnect both batteries? How many days of inactivity or what temperature?

Answer 50

Not flying for 3 days or more or temp less than -15 c