Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

RJET E170 Study Guide 12B > Fire Detection/Protection > Flashcards

Fire Detection/Protection Flashcards

1
Q

What airplane systems have fire detection and protection?

A
  • Engines
  • APU
  • Cargo compartments
  • Lavatories
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Are the cockpit and cabin protected from fire?

A

Yes, handheld halon fire extinguishers (1 in cockpit, 4 in cabin)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

How are the engines and APU protected from fire?

A
  • Engines: 2 halon fire bottles

- APU 1 dedicated halon fire bottle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Describe the fire test

A
  • Press and hold the test button for 3-10 seconds (longer will shut down APU)
  • Aural warnings (3)
  • Visual indications
    • Overhead Panel (6)
    • EICAS (5)
  • Glareshield (4)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Does pulling an engine fire handle discharge the bottle?

A

No

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Can both engine fire bottles be used for one engine if needed?

A

Yes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What indication do you have that the fire-extinguishing bottle has been discharged?

A

An ENG FIREX BTL A (B) advisory on EICAS

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

How many fire extinguishing bottle shots do you have for the engines?

A

2, A and B. Can be used for both in one engine or one in each engine

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What happens when an engine fire handle is pulled?

A

Closes the respective engine fuel SOV, hydraulic SOV and bleed SOV

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Does the fire handle require maintenance to reset it after being pulled?

A

No it’s like an electrical switch

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What is the power source for engine and APU fire detection and protection?

A

Engine Det: DC ESS BUS 1 and 2
Engine Prot: HOT BATT BUS 1 and 2
APU Det: DC ESS BUS 1 and 2
APU Prot: DC ESS BUS 2

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

The 2 APU fire loops are connected to what?

A

Modular Avionics Unit (MAU)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Describe the engine and APU fire detection system

A

Engine: 8 detectors (2 loops) each
APU: 2 pneumatic fire detectors (2 loops)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What indication do you have when both APU fire-detector loops have failed?

A

An APU FIRE DET FAIL caution on the EICAS

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Can you dispatch with 1 fire detection loop inoperative?

A

Yes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What is an indication of an APU fire?

A
  • Fire bell
  • Red stripe in the EMER STOP button
  • APU FIRE displayed on EICAS
  • Master Warning Light
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Will the APU automatically shutdown if a fire is detected?

A

Only on the ground, after 10 seconds

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Pushing the APU FIRE EXTINGUISHER button does what?

A

Closes the APU fuel valve and discharges the APU fire bottle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

What happens if the APU EMER STOP button is pushed after a fire has been detected?

A
  • APU shuts off immediately without a 1-min cool down
  • APU SOV closes
  • APU FIRE EXTG button illuminates
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

In the event of an APU fire what happens?

A
  • A red bar on the APU EMER STOP button
  • The APU Fire Extinguisher button illuminates when:
    • The APU EMER STOP button is pressed, or;
    • 1 min after the alarm, if no further action is taken
  • When the APU FIRE EXTINGUISHER button is pressed the system
  • Discharges the APU fire bottle
  • Shuts down the APU via FADEC
  • Closes the APU SOV
  • Displays APU FIREX BTL DISCH on EICAS
21
Q

Will pushing the APU emergency stop button illuminate the APU FIRE EXTINGUISHER button?

A

Only in the event of an APU fire indication

22
Q

What happens if the APU EMER STOP button is not pushed after a fire has been detected?

A

After one minute the APU FIRE EXTG button illuminates

23
Q

Will the APU fire extinguisher automatically discharge?

A

No

24
Q

When will the APU FIRE light go out?

A

When the fire is no longer detected

25
Q

APU fire detection works how?

A

2 gaseous type fire loops with 2 pneumatic fire detectors. Both loops must detect an overheat condition to get a fire indication unless one loop in inop

26
Q

During an APU fire indication, if nothing is pressed what will happen if no action is taken?

A

The APU will automatically shut down after 10 seconds if on the ground. After 60 seconds if the memory item is not completed the APU FIRE EXTINGUISHER will illuminate

27
Q

Can the low-rate bottle be discharged before the minute is up for the cargo compartment?

A

Yes, by pushing the extinguishing button again

28
Q

How can the low-rate bottle be discharged if the airplane is on the ground? Will the low rate bottle discharge automatically on the ground after 1-minute?

A
  • Flight crew must push the cargo fire extinguishing pushbutton again
  • No. The flight crew must push the cargo fire extinguishing pushbutton again
29
Q

Can cargo extinguishing be used if no smoke is detected?

A
  • Yes
  • Inflight: Push the extinguisher button twice. First to arm the high rate bottle and second to discharge it.
  • Ground: Push the extinguisher button three times. 1st to arm the high rate bottle, 2nd to fire it, 3rd to fire the low-rate bottle
30
Q

Can the CARGO EXTINGUISHER extinguisher button discharge the bottles on the ground if not being first illuminated?

A

Yes

31
Q

What happens when a cargo extinguishing button is pushed if smoke has been detected?

A
  • High rate bottles discharge immediately

- Low rate bottle discharges after one minute if the aircraft is in flight (if on the ground requires manual discharge)

32
Q

How many extinguisher bottles are installed for the cargo compartments>

A
  • 2 bottles used for both compartments

- 1 high rate bottle (60 secs) and 1 low rate bottle (60 mins)

33
Q

How many smoke detectors are installed in the cargo compartments?

A
  • 3 in fwd compartment

- 2 in aft compartment

34
Q

What happens to the forward cargo compartment in the event smoke is detected?

A
  • Recirculation fan shuts off

- Ventilation outflow valve closes

35
Q

Why do the cargo compartment fan and ventilation outflow valve close in the event of smoke?

A
  • Prevents oxygen from entering the compartment

- Prevents Halon agent from escaping into the aircraft cabin

36
Q

What is the difference between the high- and low-rate bottle?

A
  • High-rate bottle saturates compartment immediately

- Low rate bottle maintains saturation over a duration of time

37
Q

How long will the low-rate bottle remain active?

A

60 mins

38
Q

Can the cargo compartment bottles be used for different compartments

A

No, only one compartment may be selected

39
Q

Do any fire extinguishers on the aircraft work automatically?

A

Yes, the lavatory trash bins

40
Q

How are the lads protected from fire?

A
  • Heat-sensitive thermal fuse plug extinguishers in the nav waste bins automatically discharge if a predetermined temp is reached
  • No pilot control
41
Q

When the lav smoke detector is set off will the cockpit know which lav it is?

A

No, you get a generic LAV SMOKE on EICAS. Rainbow light will indicate the lav

42
Q

When you fight a fire what actions should you take?

A

P- pull pin
A - aim at fire
S - squeeze the handle
S - sweep across fire

43
Q

What will happen if you do a fire warning test with the APU on and you hold the test button for more than 10 secs?

A

The APU will shut down

44
Q

If a CRG (FWD or AFT) smoke warning is received on the ground with the door open you should not discharge the extinguisher but notify ground personnel to investigate. True or false

A

True

45
Q

If the APU is running, press the TEST button on the Fire Extinguisher panel will shut down the APU if held for more than…

A

10 seconds

46
Q

How does the remaining 2 fire detectors function to detect fire in the forward cargo bay when one detector is inop?

A

The remaining detectors must both sense an overheat condition. With 1 detector inop the recirc fan deactivates

47
Q

When the flight attendant does her mandatory nav test, the EICAS warning and master warning are on for how long?

A

7 secs

48
Q

What does 6,5,4,2 stand for during the fire test?

A

6 - illuminations
5 - EICAS
4 - Red warning Boxes
2 - Aural warnings

49
Q

How many button presses are required to deploy the fire bottles in the cargo compartments in flight and on the ground?

A

“1-2-2-3”
In flight: 1 for detected, 2 for undetected
On ground: 2 for detected, 3 for undetected

NOTE: 1-2-2-3 doubles as the elevator HYD system actuator memory device

RJET E170 Study Guide 12B (16 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions