SUPPRESS URBAN FIRE Flashcards

1
Q

What four (4) pieces of equipment should be taken if fire is confirmed or there are signs of a fire in a complex building?

A
  1. Initial Entry Bag
  2. Forcible Entry Tool
  3. BA Entry Control Board
  4. Thermal Imaging Camera (TIC)
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2
Q

Which material presents a danger of exploding in fires involving transformers?

A

Exploding porcelain

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3
Q

What is the difference between a strategy and tactic? Give an example of each for a structure fire;

A

Strategy - A strategy is a broad plan, developed in support of the control objective that is used to combat the incident.
Tactic - A tactic indicates how a job will be done.

Example– extinguish fire / Tactic using line of 60/40 with branch

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4
Q

Which is the most suitable extinguishing medium when fighting oil fires?

A

Application of foam

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5
Q

Name the three (3) basic types of storage tank construction?

A
  1. Fixed roof (cone) tank
  2. Internal floating roof tank
  3. Floating roof tank
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6
Q

Name the three (3) conditions necessary for static electricity to cause ignition?

A
  1. Accumulation of a large charge
  2. A spark gap
  3. An ignitable vapour/air mixture
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7
Q

List one of the major fall hazards for firefighters in partially built structures.

A

Missing or incomplete stairways and floors

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8
Q

What is appropriate extinguishing media for small fires involving radioactive materials?

A

Small fires should be dealt with using dry chemical, CO2, water spray or foam

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9
Q

What three (3) things should you consider when doing a fire “size up”

A
  • What has occurred and is happening
  • How the fire or incident might develop
  • Your resources
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10
Q

List three types of defects that will result in completing a Vehicle Fault Report?

A
  1. Appliance faults
  2. Faulty/Damaged Equipment
  3. Missing Equipment
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11
Q

There are many methods used to assist the OIC in providing the most appropriate information to the ComCen. One such method is the acronym H.A.U.L.E.R.S.? What does it stand for?

A

H - Height of the building
A - Area of the building
U - Used for/as
L - Lines of hose used
E - Exposures/Evacuations
R - Resources – current and required
S - Staging

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12
Q

In addition to PPC, what is required to be worn by firefighters when entering smoke and gases produced by a burning vehicle?

A

BA

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13
Q

Name the principal method by which most oil refinery process unit fires can be extinguished?

A

Process unit fires can be extinguished principally by the removal of the fuel

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14
Q

What observations can be made on the way to a structure fire?

A
  • People in the area may have seen who or what started the fire, where the fire started, or they may have started the fire themselves. Where names cannot be obtained, at least a description of the person’s features (height, weight, age, hair colour etc.) should be
    noted,as well as clothing
  • Details of vehicles in or leaving the area are valuable as they may help identify the vehicle and its driver later. Details such as registration numbers, vehicle make/type or distinctive features such as roof racks, panel damage etc. are important
  • Whether access gates were open, closed or locked. For example, if they were locked, and access via that gate is restricted to personnel with keys, then this may eliminate a number of suspects
  • Fire behaviour such as whether the smoke is from one column, or a strip, or separate spots.
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15
Q

Urban fires may be started by four main means: What are they?

A
  1. Accidental – heating, cooking, welding, electrical
  2. Natural – Lightning or spontaneous combustion
  3. Deliberate – Multiple fire seats, accelerant found
  4. Suspicious – All accidental causes ruled out and suspicious indicators located
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16
Q

On receipt of a loaned, repaired, or replaced piece of equipment, the firefighter receiving the item should do what?

A

On receipt of a loaned, repaired, or replaced piece of equipment, the firefighter receiving the item should check it for any faults and if satisfied that it is operational, place it on the appliance in the designated place

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17
Q

You are the 1st arriving pump driver at a structure fire incident. On site you notice a swimming pool that you estimate is 5m wide, 7 metres long and approximately 1.6m deep. Is this water source sufficient to extinguish a fire that is 3 m x 4 m in size and has been estimated to require 10 minutes of water application? Show calculations.

A

YES

Amount of water required is (3m x 4m) X 15 = 180L/min, 1,800L over 10 minutes.
Pool Volume m3 = 5m x 7m x 1.6m = 56m3
Pool Litres capacity = 56m3 X 1000 = 56,000L
Total amount of water available is 56,000L and water required is 1,800L

18
Q

Which extinguishing media should not be applied to an electrical fire?

A

Water

19
Q

Hazards involving clandestine laboratories can be grouped into five broad categories: List four (4) of them.

A
  • Improvised or Temporary Laboratory Facilities
  • Fire Hazards
  • Hazardous Chemicals
  • Production Hazards
20
Q

What is the main problem you face if the fire gets behind you in structural firefighting?

A

As it cuts off their line of retreat.

21
Q

Why is radiant heat a problem at structure fires?

A

Radiant heat can cause combustibles to ignite tens of metres away from the involved building, so it is important to protect nearby structures from exposures.

22
Q

What are the levels of incident review conducted by DFES?

A
  1. Debrief
  2. Post Incident Analyses (PIA)
  3. Major Incident Review (MIR)
23
Q

List five (5) of the hazards you may face in a structural fire situation.

A
  • Heat
  • Smoke and Dust
  • Electricity
  • Flashover
  • Backdraught
24
Q

Name two unique hazards specific to mobile properties?

A
  • Gas cylinders,
  • Small confined areas
25
Q

What is a potential hydrant problem in complex buildings?

A

Low water pressure

26
Q

State the hazard that the firefighters must be aware of, after an escaping gas fire has been extinguished?

A

Firefighters must be aware of a vapour which could form, on the extinguishment of an escaping gas fire

27
Q

List two (2) of the causes of entrapment in urban fires?

A
  • Escape routes being blocked by fire spread
  • Escape routes being blocked by collapse of building and debris
28
Q

As per SOP 3.4.8 – Electrical Hazards, briefly describe the four (4) step procedure for Persons in contact with electrical wires.

A
  • Do not attempt to aid any casualty unless safe to do so, or until the electrical supply has been isolated.
  • If possible, isolate the power source using the Isolation Method or alternatively, request the assistance of the energy provider for isolation and/or advice to render the hazard safe.
29
Q

Explain Exothermic and Endothermic reactions.

A

Exothermic Reaction - An exothermic reaction is a chemical reaction accompanied by the release of heat, thus causing a rise in temperature in the surrounding area. An example of an exothermic reaction is when a car engine on fire releases heat energy.

Endothermic Reaction - An endothermic rection is a chemical reaction where the reactants absorb heat, thus causing a fall in temperature in the surrounding area. An example of an endothermic reaction is when water from a hose line is applied to a car engine fire. The water molecules absorb the heat from the fire thus lowering the temperature of the surrounding area.

30
Q

What provides protection from radiation?

A
  • Time
  • Distance
  • Shielding
31
Q

What are the 6 levels of the “* Elimination
* Substitution
* Isolation
* Engineering Control
* Administrative Control
* PPC
” in order. Explain each.

A

Elimination: Completely removing a hazard or risk from the environment.

Substitution: Replacing a hazardous material or process with a less dangerous one.

Isolation: Physically separating a hazard from people to reduce exposure.

Engineering Control: Implementing physical changes to equipment or processes to reduce risk (e.g., ventilation systems).

Administrative Control: Establishing policies, procedures, and practices to manage risk (e.g., training, scheduling).

PPC (Personal Protective Equipment): Utilizing gear such as gloves, helmets, and goggles to protect individuals from hazards.

32
Q

Excluding the appliance, what four (4) pieces of equipment are required to draught water from a static supply?

A
  1. Suction hoses
  2. Line
  3. Spanners
  4. Suction strainer
33
Q

Explain the term Boilover.

A

Boilover is the expulsion of burning oil from an open top tank involved in a full surface fire.

34
Q

List (2) two situations when you might encounter a Clandestine Drug Laboratory?

A
  • When you are called to attend a fire.
  • When WA Police raid a Clandestine Drug Lab, they will likely request firefighting support
35
Q

What are the characteristics of a wet chemical extinguisher?

A
  • It provides rapid knockdown of fires involving cooking oils and fats
  • It provides a lasting blanket which controls the fire
  • It may irritate eyes and skin - prompt clean-up is advised
  • It conducts electricity
36
Q

List the five (5) ways of which a Property Fire can be classified according to how they were started:

A
  • Accidental – heating, cooking, welding, electrical
  • Natural – Lightning or spontaneous combustion
  • Deliberate – Multiple fire seats, accelerant found
  • Suspicious – All accidental causes ruled out and suspicious indicators located
  • Undetermined – All other causes have been ruled out
37
Q

A fire has started in a room in a commercial premises. The walls are made of brick with no windows and access is by a single large door at one end. The fuel is class A in a densely packed series of crates laid in an interlocking pattern that extends virtually to the ceiling. Identify the most appropriate extinguishing agent and explain which characteristics guided your choice in this situation.

A

CO2 - Carbon Dioxide works by displacing the oxygen. It is very effective when used in confined spaces. Carbon dioxide is generally applied using a fire extinguisher but is also available in bulk for specific needs.

38
Q

Name Three (3) factors to be considered when ermining a suitable route to a structural incident?

A
  • Appliance characteristics
  • Traffic Conditions
  • Status of roads
  • Threat from incident
39
Q

Describe how heat flows from regions of high temperature to regions of low temperature.
Compartment fires will have 2 distinct pressure regions:

A
  1. Over pressure (high temp/upper region)
  2. Under pressure (low temp/lower region)

Cool air will be dragged into the compartment in the under pressure region. This results from the upward movement of heated gases into the upper pressure region. As the heated gases cool in the upper pressure region, they will travel back into the lower pressure region

40
Q

What is the common extinguishing media that is generally NOT suitable for metal fires?

A

Water