Q-ELECTRICAL AND APU Flashcards

0
Q

How does the airstar work ?

A

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

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1
Q

Can the baggage compartment be used as an emergency exit ?

A

NO

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2
Q

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

A

The no smoking sign

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3
Q

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

A

Yes

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4
Q

What do the warning Tone generators provide

A

Warning Tones

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5
Q

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

A

NO

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6
Q

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

A

Steady

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7
Q

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

A

Flashing

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8
Q

Will the Master lights illuminate steady or flashing ?

A

Flashing

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9
Q

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

A

YES

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10
Q

What busses are powered when the Master is turned ON ?

A

The left and right ESSENTIAL BUS

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11
Q

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

A

ESSENTIAL AND MAIN BUSSES

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12
Q

Which BUSSES are powered with the APU ON ?

A

All DC BUSSES

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13
Q

What Controls the 4 BUS TIE

A

EPCU

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14
Q

What is the maximum battery load for take off ?

A

0.10

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15
Q

What does a battery load of 1.05 indicate

A

Recharge of + 5%

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16
Q

What is the maximum AC generator load ?

A

1.0

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17
Q

What is the maximum true load ?

A

1.0

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18
Q

What is the Maximum DC load ?

A

1.0

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19
Q

What would a generator load of 1.05 indicate ?

A

An overload of the generator ?

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20
Q

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

A

YES

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21
Q

When does the EPCU react to a main bus fault ?

A

High Current output for a generator

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22
Q

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

A

YES

23
Q

Which Battery is connected to the HOT battery bus ?

A

Standby

24
Q

Which lights are on the HOT BATTERY BUS

A

Dome and Boarding Lights

25
Q

When do the Emergency Lights automatically activate ?

A

Loss of the Left and DC Bus with the switch in the ARM position.

power loss to the left MAIN bus

26
Q

How many evacuation exists are there in the passenger cabin ?

A

4

27
Q

What does ANVS system provide ?

A

Reduce engine vibration

28
Q

What is the maximum output rating for the DC generators ?

A

400 AMPS ( total of 800 AMPS )

29
Q

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

A

300 AMPS ( 600 total )

30
Q

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

A

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

31
Q

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

A

DC generator output

32
Q

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

A

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

33
Q

Will all busses be powered if a DC generator fails ?

A

Yes by closing the man bus tie

34
Q

Will all busses be powered if both DC generators fail ?

A

Yes by closing the main bus Tie

35
Q

Will all busses be powered if both TRU’s ?

A

Yes through the secondary bus tie

36
Q

Will all busses be powered if a TRU fails ?

A

Yes through the secondary bus tie

37
Q

Will all buses be powered if an AC generator fails ?

A

NO, Galleyes are unpowered.

38
Q

When does the EMERG LIGHTS DISARMED caution lights illuminate ?

A

when EMERG LIGHTS switch is in the Off Position.

39
Q

What is the APU controlled by ?

A

APU FADEC

40
Q

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

A

NO

41
Q

With the APU operating, what busses are powered ?

A

All busses DC

42
Q

What is an indication of an APU fail loop fault ?

A

Amber fault overhead caution.

43
Q

Will the APU operate in flight

A

NO

44
Q

How is the APU fire protected ?

A

Automatically by fire loop and extinguisher.

45
Q

What are the indications of an APU fire ?

A
FUEL VALVE closed
BOTTLE armed 
FIRE AND CHECK FIRE detection lights 
APU CAUTION LIGHT MASTER WARNING 
CHECK FIRE DET LIGHT
46
Q

What is powered with the EXT power connected ?

A

All DC and AC busses are powered

47
Q

How are the Generators powered ?

A

through accessory Gear Box

48
Q

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

A

60 min

49
Q

What are the 3 batteries connected to ?

A

The essential busses

50
Q

What does selecting the battery MASTER switch do tho batteries ?

A

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

51
Q

Where does the EPCU get it’s power from ?

A

It’s energized from the essential buss

52
Q

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

A

It gets connected to the right MAIN bus

53
Q

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

A

It connects it directly to the left MAIN buss.

54
Q

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

A

A load of .10 and not colder then -20