BA Week 1 Flashcards

All info from PowerPoints in week 1 BA

1
Q

What are the stages of fire development?

A

Ignition
Growth
Fully developed
Decay

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2
Q

At what stage does flashover occur?

A

At the end of growth stage

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3
Q

What effects fire development?

A

Position of fire in room
Ceiling height
Smoke layer
Ventilation

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4
Q

What are the 3 sides of the fire triangle?

A

Oxygen
Fuel
Heat

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5
Q

What is a passive agent?

Give an example of a good passive agent

A

Absorbs heat from a fire

Water

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6
Q

What is pyrolysis?

A

Thermal decomposition of a substance by heat

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7
Q

Explain the limits of flammability

A

Fuel can only burn if composition is within certain limits.
The lower explosive limit is the lowest concentration of fuel that will just support a flame.
The upper explosive limit is the highest concentration of fuel that will support a flame

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8
Q

Give two examples of non-flammable gases

A

C02 and water vapor

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9
Q

What’s the difference between direct and indirect spray patterns?

A

Direct - narrow jet sprayed at seat of the fire

Indirect - spray aimed at seat of the fire

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10
Q

When should you complete a gauge check?

A
Every 3-5 minutes
New compartment
Locate causality
Stress
Landmark 
Change of level
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11
Q

What are the 3 options for a BA team leader when searching a compartment?

A

Stay
Advance
Withdraw

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12
Q

Define ideal mixture

A

Concentration of gas is exactly right in relation to the amount of 02 in air for combustion

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13
Q

When should emergency BA team deployment be considered?

A
BA wearer fails to return by time of the whistle
Activation of a distress signal
Indications of a BA wearer in distress
Prolonged breakdown in communication
Requested by a BA wearer
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14
Q

If you’re a trapped BA wearer and get entrapped what should you do?

A
Inform ECO and pass vital communications
Relax
Breath calmly 
Do not purge 
Limit talking with team
Operate ADSU
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15
Q

When control are informed of a BA emergency what do they do?

A

Send 1 extra appliance
2 FDS Officers
1 ambulance
Information division officer And duty principle officer

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16
Q

What is the definition of a distress to wearer incident?

A

All incident including a malfunction of a BA set including the DDU and excluding ancillary items while in training or operation use is treated as a distress to wearer

17
Q

What does BE CALM stand for

A
Battery life
Electricians
Cylinder contents
Air flow
Leakage
Motion sensor
18
Q

What is the limitation of EASE?

A

If BA mask has failed EASE will not provide air

19
Q

What does an EASE set consist of?

A
300 BAR Regulator 
3m of medium pressure house with a y piece connector
300 Bar 6.7L
ADSU drop out key  
Carrying
20
Q

What does EASE stand for?

A

Emergency air supply equipment

21
Q

What is the pressure in the high pressure hose on the BA set?
And the medium pressure hose

A
300 BAR (to gauge)
18 BAR (to mask)
22
Q

When does the DDU alarm?

How long for?

A

Pre alarms for 30 seconds

Full alarm if you don’t move for a further 15 secs after pre alarm

23
Q

What is the length of the retractable line? Before knot and after knot

A

6m total

  1. 25m to knot
  2. 75m after
24
Q

What is the cylinder contents when fully charged?

A

1800L at 300Bar

25
Q

What are the different cylinder durations and how long is each?

A

Working - 35minutes
Safety - 10 minutes
Full duration - 45 minutes

26
Q

What is the lowest pressure required to enter a risk area on first entry?

A

240 BAR

27
Q

What surcoat does a incident commander wear?

A

Yellow and white

28
Q

What surcoat does a sector commander wear?

A

Red and yellow

29
Q

What are the criteria that should be considered when locating the entry control point?

A
As close as possible to incident
In safe air
If incident deteriorates don't need to move
Focal point so easy to locate
Consider how many entry points