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ERJ7 > EMB7 Fire Protection > Flashcards

EMB7 Fire Protection Flashcards

1
Q

How many detector loops are there in the engine?

A

2

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2
Q

What happens when a engine 
fire is detected? (4)

A

Aural warning

Lights- fire handle and master warning

EICAS- fire warning light in respective ITT INDICATOR

EICAS warning msg ENG 1/2 fire is displayed

What happens when a engine 
fire is detected (4)

Aural warning

Lights- fire handle and master warning

EICAS- fire warning light in respective ITT INDICATOR

EICAS warning msg ENG 1/2 fire is displayed

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3
Q

What happens when you pull the fire handle ?(3)

A

Closes 
Engine fuel shutoff valve 
Engine hydraulic shutoff valve 
Engine bleed shutoff valve

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4
Q

How many fire extinguishing bottles are there?

A
  1. A and B
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5
Q

How do you discharge bottle A?

A

Pull fire handle and rotate counter clockwise

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6
Q

How do you discharge bottle B?

A

Pull fire handle and rotate clockwise

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7
Q

Describe APU fire protection system

A

Provides fire detection 
Extinguishing 
And continuous built in test

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8
Q

How is APU fire system powered detection/extinguishing?

A

Detection

MSU 1 ( DC ESS bus 1) and MAU3 ( DC ESS bus 2)

Extinguishing

DC ESS bus 2

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9
Q

How many detection loops in the APU?

A

2

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10
Q

What happens when you push the APU fire extinguisher button?

A

Discharges APU bottle

APU FADEC shuts down APU

Closes the APU fuel feed shutoff

Displayed EICAS MSG - APU fired btl disch

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11
Q

Will APU auto shutdown on ground because of fire?

A

Yes after 10 seconds

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12
Q

How many smoke detectors in forward cargo?

A

3

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13
Q

How many smoke detectors in aft cargo?

A

2

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14
Q

What happens with a cargo smoke indication?

A

All.

Aural warning

Lights- 
Master warning 
Associated cargo extinguishing compartment button illuminates

EICAS 

CRG AFT SMOKE 
CRG FWD SMOKE

Appropriate bottle is armed

If forward compartment —

air circulation fan turns off and forward ventilation outflow valve closes

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15
Q

How is the engine fire system powered?

A

Detection and Extinguishing

Detection- MAU1( DC ESS bus 1) 
And MAU3(DC ESS bus 2)

Extinguishing- hot batt bus 1 and 2

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16
Q

Which cargo compartment can hold live animals ?

A

Forward

17
Q

How many bottles for the cargo departments?

A
  1. One high rate and one slow rate

Both located in center Avionics bay

18
Q

How long will low rate cargo bottle provide protection?

A

60 minutes

19
Q

How will the cargo bottles discharge?

A

In flight

High rate. Push button once

Low rate will discharge after 1 minute unless you push button sooner

20
Q

How will cargo bottles discharge?

A

On ground

High rate. Push button

Low rate must push button again 
Not automatic

21
Q

Can you discharge the cargo fire bottles without an EICAS msg?

A

Yes, by pushing the respective button twice

22
Q

How is lav fire detection provided?

A

One smoke sensor in each ceiling

23
Q

If smoke is detected in lav what are the indications?

A

Master warning light

EICAS msg LAV smoke

Alarm in the LAV and flashing red light

Flashing amber light on FA rainbow panel

24
Q

Does the LAV have fire extinguishing?

A

Yes, In each trash bin

Automatic after a certain temp limit is reached

25
Q

What does the fire detection system test button do?

A

Tests the engine fire detection 
APU fire detection 
And CRG smoke detection

26
Q

What is a successful test of fire detection system?

A

EICAS msgs (5)

Eng fire 1 
Eng fire 2 
APU fire 
CRG aft smoke 
CRG fwd smoke

EICAS indications

Fire warning light in ITT illuminates

Forward cargo compartment fan turns off and outflow valve closes

27
Q

What happens if you hold the fire detection button for 10 seconds?

A

APU shutdown

28
Q

How is the engine fire system powered?

Detection and

Extinguishing

A

Detection- MAU1( DC ESS bus 1) 
And MAU3(DC ESS bus 2)

Extinguishing- hot batt bus 1 and 2

ERJ7 (14 decks)

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