Apply principles of combustion and fire dynamics to fire scene investigation Evidence Guide

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Evidence Guide: PUAFIR606A - Apply principles of combustion and fire dynamics to fire scene investigation

Student: __________________________________________________

Signature: _________________________________________________

Tips for gathering evidence to demonstrate your skills

The important thing to remember when gathering evidence is that the more evidence the better - that is, the more evidence you gather to demonstrate your skills, the more confident an assessor can be that you have learned the skills not just at one point in time, but are continuing to apply and develop those skills (as opposed to just learning for the test!). Furthermore, one piece of evidence that you collect will not usualy demonstrate all the required criteria for a unit of competency, whereas multiple overlapping pieces of evidence will usually do the trick!

From the Wiki University

PUAFIR606A - Apply principles of combustion and fire dynamics to fire scene investigation

What evidence can you provide to prove your understanding of each of the following citeria?

Apply principles of fire chemistry in fire behaviour

States of matter, changes and impact on combustion are explained
Chemical reactions, basic chemical structures, bonds and energy are defined
Process of chemical reaction and oxidisation is explained
Organic and inorganic compounds are distinguished
Hydrocarbons and how they are constructed are explained
Pyrolysis is defined
Chemistryof combustion in solids, liquids and gases is explained
Vapour density and its impact on fire spread is assessed
Different fuel types are identified and fuel loads are assessed
Difference between exothermic and endothermic reactions is explained

States of matter, changes and impact on combustion are explained

Completed
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Teacher:

Evidence:

Chemical reactions, basic chemical structures, bonds and energy are defined

Completed
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Evidence:

Process of chemical reaction and oxidisation is explained

Completed
Date:

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Evidence:

Organic and inorganic compounds are distinguished

Completed
Date:

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Evidence:

Hydrocarbons and how they are constructed are explained

Completed
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Evidence:

Pyrolysis is defined

Completed
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Evidence:

Chemistryof combustion in solids, liquids and gases is explained

Completed
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Evidence:

Vapour density and its impact on fire spread is assessed

Completed
Date:

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Evidence:

Different fuel types are identified and fuel loads are assessed

Completed
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Teacher:

Evidence:

Difference between exothermic and endothermic reactions is explained

Completed
Date:

Teacher:

Evidence:

Demonstrate knowledge of the physics of fire and impact on fire behaviour

Methods of heat transfer are explained
Theory of heat release is outlined
Stages of fire development in structures are identified and outlined
Stages of fire development in acompartment are identified and detailed
Concepts of flashover and backdraught, and their signs and symptoms are outlined
Effect of fuel load on fire behaviour is explained
Deflagration and detonation are outlined
Types of ignition are outlined

Methods of heat transfer are explained

Completed
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Teacher:

Evidence:

Theory of heat release is outlined

Completed
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Evidence:

Stages of fire development in structures are identified and outlined

Completed
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Teacher:

Evidence:

Stages of fire development in acompartment are identified and detailed

Completed
Date:

Teacher:

Evidence:

Concepts of flashover and backdraught, and their signs and symptoms are outlined

Completed
Date:

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Evidence:

Effect of fuel load on fire behaviour is explained

Completed
Date:

Teacher:

Evidence:

Deflagration and detonation are outlined

Completed
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Evidence:

Types of ignition are outlined

Completed
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Teacher:

Evidence:

Assessed

Teacher: ___________________________ Date: _

Signature: ________________________________________________

Comments:

Instructions to Assessors

Evidence Guide

Critical aspects for assessment and evidence required to demonstrate competency in this unit

Assessment must confirm the ability to:

apply relevant laws, legislation, codes of practice and national standards to fire investigation

identify and assess ignition sources

demonstrate understanding of compartment fire behaviour and wildfire behaviour and fire spread at an investigation scene

assess fuel type and fuel load at investigation scene

assess impact of vapour density on fire spread

apply relevant physical and chemical principles to fire investigation

integrate knowledge of fire chemistry, fire behaviour and science into forming and testing working hypotheses for fire origin and cause

validate fire investigation conclusions using scientific principles.

Consistency in performance

Competency should be demonstrated across a range of workplace and/or simulated situations.

Context of and specific resources for assessment

Context of assessment

Competency should be assessed in the workplace and in a simulated workplace environment.

Specific resources for assessment

Access is required to:

case studies and workplace scenarios to capture the range of causes likely to occur for which evidence needs to be gathered and managed.

Guidance information for assessment

Assessment methods suitable for valid and reliable assessment of this unit may include a combination of:

case studies

demonstration

observation

questioning

scenarios

authenticated evidence from the workplace.

Required Skills and Knowledge

This describes the essential skills and knowledge and their level, required for this unit.

Required Skills

apply scientific methodology to determine fire cause

apply theory of principles of fire chemistry and physics to develop hypothesis based on fire scene evidence

identify unrelated fire science evidence (finger prints, forced entry, signs of burglary, tool marks)

take notes

undertake a risk analysis of a fire scene including consideration of electrical hazards, hazardous materials, physical hazards and environmental hazards

Required Knowledge

auto-ignition temperature

chemistry and properties of flammable and combustible liquids

chemistry of pyrolysis

classes of fire

compartment fire development and fire spread, including flashover and backdraught

data interpretation

deflagration

detonation

drying oils, chemicals, vegetable matter, friction

effect of oxygen concentration

effects of flammable liquids on a fire scene

expected combustion products of different fuels

extinguishing theory and methods

fire gases

fire point

flame types (which may include associated temperature ranges, diffused, laminar, pre-mixed, surface, ground and crown wildfires, turbulent)

flammability limits

flammable products and gases

flashpoint

heat release rate

ignition energy

ignition sources

physics of heat transfer including radiant, convection, conducted and impact of fire spread

products of combustion (carbonaceous and unburnt pyrolysis products)

radiant heat flux

safe work practices

significance of flashpoint in terms of fire scene

spontaneous combustion

types of combustion

wildfire development (surface, ground and crown fires)

vapour density

Range Statement

The Range Statement relates to the Unit of Competency as a whole. It allows for different work environments and situations that may affect performance. Bold italicised wording in the Performance Criteria is detailed below.
Chemistry of combustion includes:	Combustion products of common fuels Fire extinguishment theory Flammable vapours Ignition temperatures (flashpoint, fire point, auto-ignition temperature or flame point and explosive limits) Interrelationship between fuel size, quantity, arrangement, moisture content, weather and topography on wildfire development and behaviour Non-piloted auto-ignition Spontaneous combustion (drying oils, chemicals, vegetable matter, friction) States of matter (solids, liquids, gases) Toxicity of combustion gases Types of combustion (incipient, smouldering and flaming)
Fuel types may include:	Class A solid carbonaceous materials Class B flammable liquids Class C flammable gases Class D combustible metals such as sodium, potassium, calcium, magnesium, aluminium dust, zinc dust, titanium dust Class E fires involving energised electrical equipment Class F fires involving cooking oil and fat Sclerophyll, grass, scrub and pine fuels in wildfires
Methods of heat transfer include:	Conduction Convection Direct flame impingement Radiation
Theory of heatrelease includes:	Heat flux Heat release rate Temperature
Stages of fire development in a compartment	Ignition Growth Flashover Fully developed Decay
Fuel load may include:	Arrangement Moisture content Quantity Type
Deflagration and detonation may include:	Dust and vapour explosion Mechanical explosion Solid explosion
Types of ignition may include:	Chemical/reaction Friction/mechanical Flame/heat Self ignition Spark/arc/electrical

NTISthis.com

Evidence Guide: PUAFIR606A - Apply principles of combustion and fire dynamics to fire scene investigation

Student: __________________________________________________

Signature: _________________________________________________

Tips for gathering evidence to demonstrate your skills

PUAFIR606A - Apply principles of combustion and fire dynamics to fire scene investigation

Apply principles of fire chemistry in fire behaviour

Demonstrate knowledge of the physics of fire and impact on fire behaviour

Assessed

Teacher: ___________________________________ Date: _________

Signature: ________________________________________________

Comments:

Instructions to Assessors

Teacher: ___________________________ Date: _