8 - Fire Protection

Question 1

How many indications (aural and visual) will you get for a FAULT/INOP test on the fire protection panel

Answer 1

5 (including the bell)

Question 2

How many indications (aural and visual) will you get for a OVHT/FIRE test on the fire protection panel

Answer 2

12 (including bell) with AC power (Wheel Well)

Question 3

How many indications for the cargo fire test

Answer 3

8 (including the bell)

Question 4

Pulling the fire switch closes which valves?

Answer 4

Fuel, hydraulic (engines only, low pressure light is inhibted), bleed air

Question 5

Will the thrust reverser operate after the fire switch has been pulled?

Answer 5

No, it is disabled

Question 6

Can you pull a fire switch when there is no fire?

Answer 6

Yes, but you need to push the override mechanism first

Question 7

What does the FAULT light signify?

Answer 7

When the detector switches are in NORMAL, that both the loops in an engine has failed.

Question 8

What does the DETECTOR FAULT light signify?

Answer 8

One or more of the loops in either cargo compartment has failed

Question 9

What conditions sets off the fire warning bell/light

Answer 9

1. Engine fire
2. APU fire
3. Wheel well fire
4. Cargo fire

Question 10

On the ground, with an APU fire warning, what else happens?

Answer 10

The remote APU fire warning horn sounds

Question 11

The lavatory fire extinguisher nozzle turns what color if it has been discharged?

Answer 11

Aluminum color (normally black)

Question 12

In an engine, loop A senses a fire, while loop B does not. Will this cause a fire warning?

Answer 12

No. Both loops must sense it (if they are operational)

Question 13

What flight deck indication will you get of a single loop failure when airborne?

Answer 13

None

Question 14

Will a dual loop failure trigger the master caution system?

Answer 14

No

Question 15

Fire extinguishing is powered by which bus?

Answer 15

Hot battery bus

Question 16

The APU has how many detector loops?

Answer 16

1

Question 17

How many fire extinguisher bottles is available for both cargo bays?

Answer 17

1 to share

Question 18

You have pushed to discharge the extinguishant into a cargo compartment, but the DISC light does not illuminate. What’s wrong?

Answer 18

Most probable reason is that it can take up to 30 seconds for the light to illuminate

Question 19

What happens when you pull the APU fire warning switch

Answer 19

Trips the APU GEN, arms the extinguisher, closes bleed air valve, closes fuel shutoff valve, and closes the apu air inlet door

Question 20

A APU loop failure will illuminate what?

Answer 20

APU DET INOP light, Master caution lights, ovht/det

Question 21

A double engine loop failure will illuminate what lights

Answer 21

the FAUL light on the fire panel ONLY

Question 22

Pushing the cargo fire test switch does what

Answer 22

tests both detector loops, and tests the squib circuits