Q-ELECTRICAL AND APU

Question 0

How does the airstar work ?

Answer 0

Push the handle , hinge to the bottom. Can be opened either by the inside or outside

Question 1

Can the baggage compartment be used as an emergency exit ?

Answer 1

NO

Question 2

What Advisory light comes on when the gear is selected in the down position

Answer 2

The no smoking sign

Question 3

Can the warning tones be heard through the speaker and the headset ?

Answer 3

Yes

Question 4

What do the warning Tone generators provide

Answer 4

Warning Tones

Question 5

IF one warning tone generator fails, is there any loss of VISUAL indications ?

Answer 5

NO

Question 6

If a caution light illuminates does it stay flashing or steady ?

Answer 6

Steady

Question 7

If a warning light illuminates, will it stay flashing or steady ?

Answer 7

Flashing

Question 8

Will the Master lights illuminate steady or flashing ?

Answer 8

Flashing

Question 9

In a condition that causes a master and a caution light to illuminate, then rectifies itself. Will the master light remain illuminated ?

Answer 9

YES

Question 10

What busses are powered when the Master is turned ON ?

Answer 10

The left and right ESSENTIAL BUS

Question 11

What busses are powered with the battery MAIN , AUX , and STBY battery ON ?

Answer 11

ESSENTIAL AND MAIN BUSSES

Question 12

Which BUSSES are powered with the APU ON ?

Answer 12

All DC BUSSES

Question 13

What Controls the 4 BUS TIE

Answer 13

EPCU

Question 14

What is the maximum battery load for take off ?

Answer 14

0.10

Question 15

What does a battery load of 1.05 indicate

Answer 15

Recharge of + 5%

Question 16

What is the maximum AC generator load ?

Answer 16

1.0

Question 17

What is the maximum true load ?

Answer 17

1.0

Question 18

What is the Maximum DC load ?

Answer 18

1.0

Question 19

What would a generator load of 1.05 indicate ?

Answer 19

An overload of the generator ?

Question 20

Can the EPCU disconnect the bus tie if the bus tie switch is selected on ?

Answer 20

YES

Question 21

When does the EPCU react to a main bus fault ?

Answer 21

High Current output for a generator

Question 22

Will all busses be powered if both TRU’s Fail ?

Answer 22

YES

Question 23

Which Battery is connected to the HOT battery bus ?

Answer 23

Standby

Question 24

Which lights are on the HOT BATTERY BUS

Answer 24

Dome and Boarding Lights

Question 25

When do the Emergency Lights automatically activate ?

Answer 25

Loss of the Left and DC Bus with the switch in the ARM position. power loss to the left MAIN bus

Question 26

How many evacuation exists are there in the passenger cabin ?

Answer 26

4

Question 27

What does ANVS system provide ?

Answer 27

Reduce engine vibration

Question 28

What is the maximum output rating for the DC generators ?

Answer 28

400 AMPS ( total of 800 AMPS )

Question 29

What is the total maximum output rating of the TRU's ?

Answer 29

300 AMPS ( 600 total )

Question 30

When does the automatic load shedding of of the galley busses occur ?

Answer 30

if the left or right variable AC busses draw too much current the ties will open and not transfer to the opposite generator

Question 31

What will cause the EPCU to react to a main bus fault ?

Answer 31

DC generator output

Question 32

What will the EPCU do if it detects a main bus fault ?

Answer 32

It will isolate the bus by opening the main bus Tie and the right secondary TIE

Question 33

Will all busses be powered if a DC generator fails ?

Answer 33

Yes by closing the man bus tie

Question 34

Will all busses be powered if both DC generators fail ?

Answer 34

Yes by closing the main bus Tie

Question 35

Will all busses be powered if both TRU's ?

Answer 35

Yes through the secondary bus tie

Question 36

Will all busses be powered if a TRU fails ?

Answer 36

Yes through the secondary bus tie

Question 37

Will all buses be powered if an AC generator fails ?

Answer 37

NO, Galleyes are unpowered.

Question 38

When does the EMERG LIGHTS DISARMED caution lights illuminate ?

Answer 38

when EMERG LIGHTS switch is in the Off Position.

Question 39

What is the APU controlled by ?

Answer 39

APU FADEC

Question 40

Can the APU bleed be on with the engine bleeds selected on ?

Answer 40

NO

Question 41

With the APU operating, what busses are powered ?

Answer 41

All busses DC

Question 42

What is an indication of an APU fail loop fault ?

Answer 42

Amber fault overhead caution.

Question 43

Will the APU operate in flight

Answer 43

NO

Question 44

How is the APU fire protected ?

Answer 44

Automatically by fire loop and extinguisher.

Question 45

What are the indications of an APU fire ?

Answer 45

``` FUEL VALVE closed BOTTLE armed FIRE AND CHECK FIRE detection lights APU CAUTION LIGHT MASTER WARNING CHECK FIRE DET LIGHT ```

Question 46

What is powered with the EXT power connected ?

Answer 46

All DC and AC busses are powered

Question 47

How are the Generators powered ?

Answer 47

through accessory Gear Box

Question 48

How long do the batteries provide power for the essential services ?

Answer 48

60 min

Question 49

What are the 3 batteries connected to ?

Answer 49

The essential busses

Question 50

What does selecting the battery MASTER switch do tho batteries ?

Answer 50

It's closes 3 connectors and connects all three batteries to the essential busses

Question 51

Where does the EPCU get it's power from ?

Answer 51

It's energized from the essential buss

Question 52

What does the MAIN battery get connected to when the MAIN battery switch is selected to ON

Answer 52

It gets connected to the right MAIN bus

Question 53

Selecting the AUX batt to ON will connect it to what ?

Answer 53

It connects it directly to the left MAIN buss.

Question 54

What is the maximum battery load, and minimum battery temperature, allowed for take off ?

Answer 54

A load of .10 and not colder then -20