Fire Protection

Question 1

How many smoke detectors are located in the forward cargo compartment?

Answer 1

3

Question 2

How many smoke detectors are located in the aft cargo compartment?

Answer 2

2

Question 3

True or False: The cargo compartment smoke detectors are monitored by the MAU.

Answer 3

True

Question 4

Where is the lavatory fire extinguisher bottle located?

Answer 4

Inside each lavatory waste container

Question 5

True or False: Due to the fact that both lavatories are continuously monitored by
the flight attendants, neither lavatory has a smoke detector.

Answer 5

False

Question 6

The Engine fire protection system provides _______.

Answer 6

Engine fire detection,
engine fire extinguishing,
and continuous built-in tests to detect internal faults

Question 7

Where are the engine fire bottles located?

Answer 7

Right hand wing to fuselage fairing

Question 8

How could the aural warning be silenced in the event of an engine fire?

Answer 8

By pressing either master WARN switchlight

Question 9

If an engine fire is detected, which of the following will occur?

Answer 9

Firebell aural sounds,
the FIRE handle illuminates,
the master WARN lights illuminate,
a warning message is displayed on EICAS,
a FIRE warning light illuminates on respective ITT

Question 10

By pulling an engine Fire Handle, which of the following will occur?

Answer 10

Will cause following shutoff valves to close:
engine fuel shutoff valve,
engine hydraulic shutoff valve,
and engine bleed air shutoff valve

Question 11

The APU fire protection system provides which of the following?

Answer 11

APU fire detection,
APU fire extinguishing,
and continuous built-in tests to detect internal faults

Question 12

True or False: In the event of an APU fire, pressing either master WARN
switchlight silences the master WARN aural alert.

Answer 12

True

Question 13

If an APU fire is detected, which of the following will occur?

Answer 13

A firebell aural sounds,
the red striped bar on the APU EMER STOP button illuminates,
the master WARN lights illuminate,
and the EICAS message APU FIRE is displayed

Question 14

True or False: When the fire detectors no longer sense a fire in the APU, the APU
fire extinguisher button will still be illuminated.

Answer 14

FALSE

Question 15

True or False: The cargo compartments are continuously being monitored for smoke.

Answer 15

True

[smoke detection is continuous - Built In Test is periodic]

Question 16

If smoke is detected in the forward cargo compartment by a single smoke detector,
which of the following will occur?

Answer 16

The air circulation fan automatically turns off, and the ventilation outflow valve closes

Question 17

If a smoke condition is sensed in either cargo compartment, which of the following
will occur?

Answer 17

The high rate fire extinguishing bottle is automatically armed,
a firebell aural sounds,
the master WARN lights illuminate,
the associated cargo compartment extinguishing button illuminates,
the EICAS warning and advisory messages are displayed

Question 18

To extinguish a fire in the forward cargo compartment, pilots must _______.

Answer 18

Select the illuminated cargo fire extinguisher button

Question 19

In flight, the low rate fire bottle will discharge automatically after one minute,
providing protection from re-ignition for _______ minutes.

Answer 19

75 min.

Question 20

True or False: On the ground, the cargo compartment low-rate extinguisher fire
bottle will automatically discharge.

Answer 20

False

Question 21

True or False: The cargo fire extinguishing system CANNOT be used in the
absence of an alarm condition.

Answer 21

False

Question 22

In the event that there is an absence of a fire alarm condition, which of the
following is true about the forward and aft cargo compartments?

Answer 22

The alarm will be treated as a fault

Question 23

True or False: The forward and aft lavatories do not have any fire protection
Installed.

Answer 23

False

Question 24

True or False: The fire extinguishers that are installed in each lavatory will only
extinguish a fire located in the lavatory waste bin.

Answer 24

True

Question 25

True or False: The lavatory fire extinguishing system has flight deck controls.

Answer 25

False

Question 26

At what temperature will the lavatory fire extinguisher automatically discharge?

Answer 26

Exceeds 172 degrees Fahrenheit

Question 27

Lavatory fire extinguishing is accomplished how?

Answer 27

When the temperature inside the waste bin exceeds 172 degrees Fahrenheit the tip of each tube will melt causing the extinguishing agent to discharge in the waste bin

Question 28

The fire detection system TEST button in the flightdeck is used to test all the
following systems EXCEPT _______.

Answer 28

Engine fire detection,
APU fire detection,
and cargo smoke detection

“62522”

6 - lights on overhead panel
2 - master warning switchlights
5 - EICAS messages
2 - Reverse Video ITT FIRE indication
2 - triple chime fire bell, master warning chime

Question 29

There are a total of _______ bottles available to extinguish an engine fire and
_______ bottles available to extinguish an APU fire.

Answer 29

2, 1

Question 30

True or False: During normal operations, both engine overheat detector loops must
detect a fire before a warning is generated.

Answer 30

True

Question 31

Which of the following statements best describes the operation of the cargo fire
extinguisher system?

Answer 31

After the annunciation of smoke detection in the cargo compartment pressing the associated cargo compartment button causes:
The high rate bottle discharges immediately into the selected compartment and the CRG FIREX HI DISCH EICAS advisory message to display.
The low rate bottle discharges at a slower rate preventing reignition for 75 minutes [the low rate bottle discharges 1 minute later when in flight]

Question 32

On the ground, the APU will shut down automatically _______ seconds after a fire
condition is detected.

Answer 32

10 sec.

Question 33

What are the flight deck and cabin indications that the lavatory waste bin
extinguisher has discharged?

Answer 33

There are no flightdeck or cabin indications that the bottle has discharged