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 ?

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
What does the fire detection system test button do?
Tests the engine fire detection 
APU fire detection 
And CRG smoke detection
26
What is a successful test of fire detection system?
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
What happens if you hold the fire detection button for 10 seconds?
APU shutdown
28
How is the engine fire system powered? Detection and Extinguishing
Detection- MAU1( DC ESS bus 1) 
And MAU3(DC ESS bus 2) Extinguishing- hot batt bus 1 and 2