Urban Fire Flashcards
(27 cards)
Protection from radiation is provided by what?
Time
Distance
Shielding
you have been tasked with working in an area where there is debris that may contain radioactive elements. In your work your main objective in relation to debris is to what?
Disturb as little as possible
Appropriate extinguishing media for small fires involving radioactive materials include
Dry chemical
CO2
Water spray
Foam
List some high risk hazards when fighting fires in high rise structures
Structural collapse of part or whole building Concealed fire spread Heat Stress Extreme fire behaviour Reduced visibility Fires in basement levels
list some safety measures that can be employed when working in a complex building when visibility is reduced
Use BA and guidelines
Work in pairs
Carry a torch and portable radio
From a fire service perspective, a high rise is a building that what?
You must fight the fire from inside without the assistance of external hose lines, monitors, appliances or other equipment
What is the potential problem relating to hydrants is high rise buildings
Low water pressure even when boosting
why is it useful to note the floor layout of the floor where the staging area is setup
the fire floor layout is potentially similar, particularly the location of installed fire protection, hydrants, hosereels
lis some hazards associated with buildings under construction
water supply access excavations heavy equipment stored building materials wind intensity disorientation temporary electrical services scaffolding hose stream use (blasting of debris by jet streams)
list the specific safety rules when working in a partially built structures
work in teams maintain awareness check switchboards and cabling Ensure you have firm footing at all times carry a torch Use a variable pattern branch
list the specific areas that can present a problem in accessing a partially built structure
temporary fencing may become tangled and difficult to cut a passage through
Negotiating the hazards, poor ground surfaces and obstacles within the site will be a challenge and requires forethought
what is the issue with trying to locate a water supply in a partially built structure
these may be difficult to locate inaccessible not functioning or absent
what factors contribute to disorientation in partially built structures
Sections of walls may be missing
Drop offs between floors
Name one of the major fall hazards for firefighters in partially built structures
missing stairways and flooring sections
true or false- scaffolding is designed to withstand fire and jet streams
False
In what situation might you enter a clandestine drug lab
When you are called to a fire, you should make yourself aware of the signs which indicate that there may be a clandestine drug lab present
When WA Police raid a Clandestine drug lab and request the support from DFES
Persons encountered in a clandestine drug lab may be dangerous for two reasons, what are these?
They have weapons
As a result of addiction, may suffer from paranoia
list five types of information that may be available in a police briefing what assisting at a clandestine drug lab
Chemicals weapons people who may be present equipment booby traps
List two types of booby traps that may be present at clandestine drug labs
Explosive booby traps
Rabbit traps
name five signs which may indicate the presence of a clandestine drug lab
Improvised or temporary lab facilities and equipment
Extra locks on doors and bars on windows in what appears to be a vacant building
Sealed up windows/opaqued or curtained where processing occurs
Discarded waste products, lots of blister packs
Chemical odours such as ether, ammonia
Visitors arriving and leaving at all hours of the day and night.
Name five types of hazards which you may encounter when responding to an incident involving clandestine drug laboratories
Variety of possible ignition sources Unsafe electrical work Poor ventilation Very rapid fire spread Flammable liquids and solid Potential for explosions Potential for re-ignition Toxic Fumes Toxic irritant, corrosive chemicals Unlabelled or poorly labelled chemicals
list the six fuctions of the oil refining process
Distillation- separates light and heavy fractions
Catalytic Cracking- breaks down large hydrocarbon molecules
Catalytic Reforming- Produces high octane gasoline from naphtha
Alkylation- the process of combining two gases to form high octane gasoline
Treating- removes sulphur and other contaminants
Blending- produces the final products for the market
list the three basic petroleum storage tank construction
Fixed
Internal floating roof
Floating roof
list five fire and explosion prevention measures when dealing with oil refinery fires
- Exclusion of sources of ignition
- Exclusion of air (oxygen)
- Storage of liquid in closed containers or systems
- Ventilation to prevent accumulation of vapour within the flammable range
- Use of atmosphere of inert gas instead of air.
