Fire Protection Flashcards

1
Q

Fire warning BELL CUTOUT switch push does?

A

extinguishes both master FIRE WARM lights
silences the fire warning bell
silences the remote APU fire warning horn in wheel well
resets the system for additional warnings

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2
Q

Overheat Detector OVHT DET switch
Normal
A
B

A

normal both loop A and B are active
A loop is active
B loop is active

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3
Q

Extinguisher EXT test switch

A

it test bottle discharge circuit continuity for all three bottles.
Lights are green system is Normal

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4
Q

FAULT/INOP test what?

A

fault detection circuits for both engine and APU

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5
Q

OVHT/FIRE test?

A

overheat and fire detection loops on engines and APU

Each engine contains TWO overheat/fire detector loops

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6
Q

Engine fire Detection is powered by?

Engine fire Extinguishing is powered by?

A

Battery bus

Hot battery bus

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7
Q

ENG overheat light amber

A

indicates overheat in related engine

Note: master caution and OVHT/DET system annunciator lights illuminate.

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8
Q

Fault light amber

A

Normal both loops have failed
in A or B the selected loop has failed

Note: Master caution and OVHT/DET system annunciator lights do NOT illuminate

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9
Q

APU fire warning light ( in wheel well )
red flashing?
red steady?

A

indicates fire in APU

APU fire warning horn cutout switch has been pushed

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10
Q

Lavatory fire extinguisher
Temperature Indicator
White?
Black?

A

normal condition

exposed to high temperatures

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11
Q

Heat activated nozzles
Flat black?
Aluminum?

A

normal conditions

indicates extinguisher has discharged

both nozzles discharge toward the towel disposal container.

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12
Q

How many engine fire bottles?

A

TWO

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13
Q

Pulling the engine fire switch UP?

A
Closes Fuel 
Closes Bleed air
Closes HYD
Trips Gen
disables thrust
allows the engine fire switch to rotate
arms one of the squibs on each engine fire extinguisher bottle
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14
Q

APU Fire Detection powered by

APU fire extinguishing powered by

A

battery bus

hot battery bus

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15
Q

How many Fire detection loops are on the APU

A

ONE

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16
Q

If Loop failed on APU what is the indication?

A

APU DET INOP on center pedestal

17
Q

Pulling up on the APU fire handle/switch does?

A
Back up for automatic shutdown
Deactivates the ECU and closes fuel
close bleed air valve
closes inlet door
trips GEN
Allows switch to be rotated for discharge
arms the bottle squib
18
Q

Wheel well protections is powered by

A

No. 2 AC transfer bus

Note: the wheel well has no extinguishing system

19
Q

Main wheel well has how many fire loops?

A

ONE

20
Q

Cargo fire protection powered by these systems?

A

Smoke detection by DC bus 1 and DC bus 2

EXTINGUISHING by hot battery bus

21
Q

Lavatory fire extinguisher system is?

A

operates automatically

flight deck has no indication of extinguisher discharge