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Humberside Airport Fire Fighting 🚒 > BA > Flashcards

BA Flashcards

1
Q

Cylinder what is it made out off?

A

Aluminium flask,
Carbon fibre wrapped & covered in a protective lacquer

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2
Q

How many litres of air does the Cylinder hold l?

A

1854 litres of air

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3
Q

How many litres of liquid does the Cylinder hold?

A

6.8 litres of liquid

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4
Q

What bar is the cylinder charged to?

A

300 bar pressure

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5
Q

What are the 3 operational durations?

A

Full duration
Working duration
Safety margin

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6
Q

When does the low pressure warning whistle activates?

A

At 55 + or - 5 bar

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7
Q

How long if movement is not detected does the pre-alarm sound?

A

21-25 seconds

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8
Q

The pre alarm is cancelled of movement is detected within a further how many seconds?

A

8 seconds

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9
Q

If movement is not detected after 8 seconds of the pre alarm-sound then what will happen?

A

The Full alarm will sound and
The two blue and red Lead’s will flash

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10
Q

General check is made up of 5 elements which are:

A
  1. Visual inspection
  2. High pressure leak test / low pressure warning device test
  3. ADSU/DSU test
  4. Facemask seak test
  5. Recording of the test in the BA log book
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11
Q

Internal firefighting
There are four key areas that have the potential to cause harm during internal firefighting:

A

Construction and design of aircraft

Contents and use of the aircraft

The night of the fire and operational tasks.

Working and environmental conditions

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12
Q

Circumstances leading to an internal aircraft fire?

A

External fire

Combustible materials inside the aircraft cabin

Electrical fault

Intentional

Cargo or baggage

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13
Q

Crews committed to fight fires inside an aircraft are likely to face the following;

A

Dense toxic smoke

Extreme levels of heat and humidity

Casualties

Entanglement hazards

Collapse of interior fittings

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14
Q

Considerations for internal aircraft fire fighting?

A

Location and severity of the fire

Are persons reported, how many and last known location

Equipment and PPE/RPE selection

Offensive or defensive firefighting techniques

Gaining entry

Eliminating, controlling, preventing flash over or backdraft

Water sprays or jets

Extinguishing agent being applied

Decontamination of contaminated personal

Wind direction - avoid the blowtorch effect

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15
Q

Classes of fire?

A

Class A - Carbonaceous

Class B - Hydrocarbon

Class C - Gases

Class D - Metals

Class F - Days & Oils

Electrical fires

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16
Q

4 types of Heat Transfer?

A

Conduction

Convection

Radiation

Direct Burning

17
Q

How does fire develop?

A

Initial heat source

Passives absorb heat, once at thermal capacity, become actives.

Actives produce Pyrolysis.

Given an ignition source, pyrolysis vapours ignite thus spreading fire.

18
Q

BA wearers should indicate they are in distress by contacting ECO via radio and operating the distress signal unit (DSU).

When should such action be taken:

A

Risk to life or severe injury to any BA wearer (s) in the BA team.

If the BA team feel they cannot evacuate safely from the incident by their own unaided efforts.

It they are unable to trace their route to their exist point.

19
Q

In a BA Emergency the BA wearer / team leader should consider what?

A

Gauge checks

Inform the entry control point (ECP), stating the phase ‘BA Emergency’

Where possible retrace steps up the ECP

Carry out a risk assessment and decide whether it is appropriate to remain at current location or to locate to a safe waiting area

Establish communication with the ECP and inform them of the situation, current location and intensions

If unable to retrace your steps to the exit, locate an alternative exit.

Where appropriate, adopt ‘entrapped procedure’ to conserve air whilst awaiting rescue.

Operate the DSU of any person’s affected

20
Q

Entrapped procedure

A

Contact the ECP
Operate DSU
Relax as much as possible
Breathe calmly to minimise air usage

21
Q

When should an ECO call a BA Emergency

A

BA team not at ECP by indicated time of whistle.

DSU activation/ sounding

It is clear a dangerous situation is developing which will affect the BA team.

It appears that any BA wearers is in distress.

Prolonged and unexplained breakdown in communications.

At the request of a BA wearer within the risk area.

22
Q

Minimum requirements for BA emergency team

A

Minimum of 2 BA wearers for every emergency.

However, the number of wearers of the BA emergency team must be at least equal to that of the largest BA team deployed with the risk area from that ECP.

23
Q

BA Emergency team call sign will indemnify the ECP and their status e g

A

Alpha Emergency 1 or Alpha Emergency 2

24
Q

BA emergency team equipment

A

Radio communication

The EASE, to provide supplementary air

TIC

Any other specialist equipment provided for this purpose e.g breaking in gear

25
Q

BA emergency team actions on locating distressed BA Wearer

A

Silence BA Wearer DSU

Obtain verbal confirmation from distressed wearer the the nature of the emergency if possible.

Inform ECP that the distressed wearers have been located..
Take guage readings of distressed wearers and BA Emergency team

Render any on scene assistance as required

Following an assessment of risk, determine and implement a safe Action plan to remove distressed wearers from the risk area.

26
Q

A set removal is to be done only in cases of fire emergency.
2 examples are

A

Where a firefighter is entrapped and the dangers are to great to await Rescue.

Where an urgent rescue has to be effected and the circumstances do not allow time to await the arrival of airline or other specialist equipment.

27
Q

Procedure for partial set removal

A

Carri out a DRA ( dynamic risk assessment) of the confined space

Guage check

Inform ECO of situation and lowest gauge pressure

Remove set

Proceed through obstacle, feet first if cannot see through/ conditions

Replace set

Guage check.

Communicate actions and findings to the other BA wearers

Inform ECO once all BA team are through obstacle

28
Q

Heat loss
What are the 4 main mechanisms by which the body loses heat?

A

Radiation (surface temperature) 50%

Convection (passage of air) 25%

Vaporisation (lungs) 15%

Evaporation (sweating) 10%

29
Q

3 separate headings in which heat stress may be classified under

A

Heat exhaustion.

Heat induced faint.

Heat stroke

30
Q

Heat exhaustion treatment

A

Remove to a cooler environment

Radial cool

Rest in a recumbent position

Administer a water it saline solution.

In severe cases, remove for hospital treatment

31
Q

Heat induced faint treatment

A

Remove to cooler environment

For impending faint sit upright on the floor, with head and shoulders bent forwards towards knees.

For full faint - lie casualty down, with legs and head slightly elevated .

After recovery the casualty must not re-enter the hot atmosphere for several hours.

In severe cases remove for hospital treatment.

32
Q

Heat stroke treatment

A

Must be treated urgently

Remove clothing

Cover body in wet towels/ water spray/ ice water baths

Massage to promote circulation

Rapidly fan the body

Remove to hospital at the earliest opportunity

33
Q

Radial cooling

A

Remove BA Set, flashood and tunic

Submerge hands and wrists into cold bucket of water

For every 10 minutes of submersion,the body will drop by 1°C

34
Q

What are the 3 stages of positive pressure ventilation:

A

Stage 1: after fire extinction
Stage 2: after control but before fire extinction
Stage 3: after the arrival of the fire service but before control is achieved

Humberside Airport Fire Fighting 🚒 (6 decks)

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