Study Flashcards

1
Q

What is fire?

A

The light and heat that is generated by a self sustaining exothermic chemical reaction.

Called combustion.

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2
Q

What are the three points of the fire triangle in or to achieve the chemical reaction?

A

Oxygen
Heat
Fuel

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3
Q

How much oxygen is contained in normal air?

A

21%

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4
Q

Heat can be spread by?

A

Conduction (Heat passing through an object)
Convection (Heat rising)
Radiation (heat pushing out)

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5
Q

What are the three types of fuels?

A

Liquid
Solid
Gas

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6
Q

What is pyrolysis?

A

The decomposition of a material bought about by heat.

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7
Q

What temperature does smoke ignite at?

A

600-650

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8
Q

What are the five stages of fire development?

A

Beginning/Incipient - Initial stage. Overall temp in room not affected
Free Burning - Fire growth, more beyond first fuel
Flashover - Transition from free burning and full fire
Post flashover - Fire continues to burn with maximum energy
Decay - Starting to run out of fuel

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9
Q

What are types of indicators in a compartmental fire

A

Lines of Demarcation - Areas between affected area and adjacent unaffected areas
Smoke levels - Point where fire got to
V Patterns - Fire burns in a cone shape and generally spreads upwards and outwards
Pour pattern - Formed by ignitable liquids
Trailers - Any combustible or flammable material that has been used to spread the fire from one point to another.
Spiralling on Concrete
Charring/Aligatoring
Bevelling
Glasss
Clean burn - Burnt away by direct flame contact
Bed lounge springs - Sagging means closer to the fire source

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10
Q

What temperature does aluminium melt at?

A

660 degrees

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11
Q

What are the four categories of ignition?

A

Flame

Arc

Spark

Heated Object

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12
Q

What is flashpoint?

A

When temperature is sufficient to produce enough vapour in the air to reach the lower flammability limit, the lowest temperature is called the flashpoint

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13
Q

What is the minimal level of PPE

A
Police issue overalls
Approved half mask negative pressure respirator
Police issue leather boot or gum boots
Hard hat
Leather gloves 
Eye protection
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14
Q

What are the main hazards at fires (5 I’s)

A

Inhalation

Ingestion

Impact

Irritants

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15
Q

What are the four types of compartmental fires?? ANIU

A

Accidental - Not deliberate

Natural - Fire occurs without human intervention

Incendiary - Deliberate act

Undetermined ???

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16
Q

What are the elements of a fire cause?

A

1) The ignition (heat) source
2) The fuel (material) first ignited
3) The oxidiser present
4) The ignition factor

17
Q

Electricity can only do three things?

A

Create heat
Create movement
Create light

18
Q

What are arson motives

A
Crime concealment
Hate spite revenge
Vandalism / thrill seeker
Protect / Civil order/ terrorism 
Excitement hero vanity
Fraud
19
Q

What are the three points of the arson triangle?

A

Deliberately lit fire

Motive

Means opportunity

20
Q

What is the definition of arson for profit?

A

The deliberate setting of a fire (usually to a structure) for the purpose of making a financial or economic gain.

21
Q

Arson for profit indicators?

A
Unnatural fire loads
Removal of personal items 
Recents changes to insurance coverage 
Financial problems
Over insured.
DA 
Heritage listing
22
Q

What is an accelerant?

A

A substance used to aid the spread of a fire

23
Q

What does char depth tell?

A

Intensity direction of fire and duration

24
Q

What does an inverted v indicate

A

An intense rapidly burning fuel source. Can also be an indicator of an accelerant

25
Q

What impact bush fires spread?

A

Wind, slope and fuel

26
Q

What are some fuel factors

A
Fuel size 
Fuel quality 
Fuel type 
Fuel moisture 
Fuel arrangement 
Topographic factors
27
Q

What are some bush fire indicators

A

Fallen stems
Cupping on grass stems
Scrub scorch
Tree burn indicators

28
Q

What are the categories of wildlife fires?

A

Natural

Accidental

Negligent

Incendiary device

29
Q

What should you do when you first attend a fire?

Doc IIIED C

A
Secure Crime Scene 
Obtain Information from fire captain
Co-ordinate forensics
Immediate canvass
Idendify interested parties
ID Insurance investigators
Extended Canvass information
Debries and related samples to FASS immediately 
Consider early forensic review.
30
Q

What are the proofs for Section 195 of Crimes Act?

A

A person who recklessly or intentionally,

Damages or destroy property (by fire 1B),

Belonging to another person or to that person and another

1b) if the destruction or damage is caused by means of fire or explosives,

to imprisonment for 10 years.

31
Q

What are the proofs for section 197 Crimes Act

A

A person who dishonestly,
With a view with a view to making a gain for that person or another,
damages or destroys
if the destruction or damage is caused by means of fire or explosives,

to imprisonment for 14 years.

32
Q

What are difference between 195 1(b) and 197 1(b)

A
  • Imprisonment term 10 (195) vs 14 (197)
  • Can be solely your own property (197)
  • 195 can be both reckless or intentional
  • 197 requires an element of dishonestly to make a gain.
  • 195 does not require a gain
33
Q

What the interview categories

A

General / Background

Movements

Insurance

Finances

Business premises

34
Q

When do we need to report a fire to the Coroner??

A

Person dies or is seriously injured

Property damaged value exceeds 500k

Identity of suspect is known

The fire is high profile

A known person is suspected of causing the fire or explosion

35
Q

203E Bushfires

A

A person;

a) who intentionally causes a fire, and
b) who is reckless as to the spread of the fire to vegetation on any public land or on land belonging to another

14 years (alternate verdict for section 100(1) rural fire act 5 years)

Causing a fire;
Lighting
Maintaining
Failing to contain the fire.