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FIRE Flashcards

1
Q

Fire - Class F

A

Cooking oils and fats
Extinguisher: Wet-Chemical

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2
Q

Fire - Class A

A

Combustible materials (Wood, Paper, Textiles)
Extinguisher: Water, Foam, Powder

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3
Q

Fire - Class B

A

Flammable liquids (Petrol, Spirit)
Extinguisher: Foam, Powder

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4
Q

Fire - Class C

A

Flammable gases
Turn off!
Extinguisher: Powder

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5
Q

Fire - Class E

A

Electrical fires
Extinguisher: Powder, CO2

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6
Q

Fire - Class D

A

Burning metals
Extinguisher: T.E.C.

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7
Q

Flashpoint?

Fire

A

lowest temperature which vapours begins

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8
Q

Convection

Fire

A

is the process of heat transfer by movement of fluids. Hot air raises, in room also horizontal

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9
Q
A
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9
Q

Smothering

Fire

A

**removal of oxygen ** (ersticken)
use of fire blanket
CO2 displacing the air
ventilation control

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10
Q

Starvation

Fire

A

starvation = aushungern
removal of the fuel
shut of oil, gas, fuel valves
boundary starvation?

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11
Q

4 ways a fire spreads

A

Convection
Conduction
Radiation
Direct Burn

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12
Q

Backdraft / Backdraught

Fire

A

an explosion that occurs when oxygen is rapidly enter in a superheated but oxygenpoor room.
From outside: when you see smoke comes out and almost disapears

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13
Q

Radiation

Fire

A

transfer of heat by electromagnetic waves
example: sun
(Strahlung)

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14
Q

flame inhibitation

Fire

A

breaking down the monecular chain reaction of combustible in a flame

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15
Q

triangle of fire

A

O2 (oxygen) - heat - fuel

16
Q

Flashover

Fire

A

when in a good ventilated room the fire is everywhere, everything burns all at once

17
Q

direct burning

Fire

A

process of fire spread by direct contact between the flame and material

18
Q

Cooling

Fire

A

Remove the heat
- us of spray/jet
- us of water in internal spaces
- boundary cooling

19
Q

Conduction

Fire

A

is transfering heat through a material by direct contact between particles.
example: metal is a good conductor
(Leiten)

20
Q

Firepoint

Fire

A

lowest temperature at which vapors of the material will catch fire

21
Q

what is the worst thing to do when Fire class B?

A

try to put out with water

22
Q
A

ALL (7 decks)

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