61-80 Flashcards
Question 61.
According to STP - Property protection is the act of protecting property from the impact of a wildfire. At a major wildfire, FRNSW crews generally engage in property protection roles. We generally have 3 strategies for carrying out property protection. Name and describe them.
Line Defence
A line defence is used when conditions would normally allow an offensive attack but there are not enough units to mount an offensive attack in time. It involves preventing the approaching line of fire from closely approaching the property.
Ember Defence
An ember defence is used when the approaching line of fire is too intense to be suppressed by offensive means and is producing significant ember attack.
It involves extinguishing small fires that occur in and around buildings, when and as they occur.
Firefighters operate from safe positions behind suitable shielding from the main fire front and pull back to safer refuge if needed.
Backstop Defence
A backstop defence is used when there is no safe defensible space around buildings and/or the approaching fire is so intense that firefighters cannot safely protect the buildings during the impact of the fire.
Firefighters withdraw temporarily a short distance away to a suitable safe refuge, with the intention of coming back after the fire front passes.
After the main fire front subsides, they move forward to put out the property on fire.
This type of defence is used when firefighters have run out of all other options.
Question 62.
Operations Bulletin 2023-01- Lists the hazards and risks at incidents involving Lithium-ion batteries in small devices. List all as stated in the bulletin.
*Thermal runaway.
* Extreme fire behaviour.
* Release of toxic vapour and gases.
* Hazardous materials and leaked electrolytes.
* Stranded energy.
* Projectiles.
* Secondary ignition.
Question 63.
As described in STP - When conducting ventilation using a fan, what is the most effective inlet/outlet ratio?
1-4. Outlet 4x larger than the inlet
Question 64.
According to SOGs - When an LPG container is involved in fire, what area of the container is considered most crucial and a high priority area for cooling?
The container’s vapour space (area above the liquid) is most crucial and is to be considered a high priority area for cooling.
Question 65.
As recommended in STP - When conducting ventilation with a fan, the fan should be set back approximately how far from the door.
2 Metres. Enough to cover the height of the door
Question 66.
According to Work Instruction- “Bagging contaminated gear” What equipment is required for bagging contaminated gear (not PPC) at an incident to minimise the risk presented by hazardous contaminants during storage or transport?
The following equipment is required to bag contaminated gear.
~The appropriate bag for the type of contaminant:
- Asbestos containment bags where asbestos is a suspected contaminant
- Yellow clinical waste bags for waste produced from first aid.
- Clear contaminated gear bags for other contaminants, including smoke.
~ Cable Ties or strong tape to seal the bags.
~ A contaminated equipment tag to attach to the bag with relevasnt details.
Question 67.
You are responded to a bushfire with four Fire Rescue NSW pumpers two RFS tankers and one inspector, according to SOGs what class is the fire?
Class 1. A fire under the control of the responsible fire authority, whether or not incidental/low level assistance is provided by other agencies.
Question 68.
According to the guideline support document for electricity SOGs - Electrical transformers in high density areas of cities maybe situated in underground vaults, if a fire occurs in one of these vaults, CO2 can be injected via a wall mounted or footpath CO2 connection box. What does the number on the connection box indicate?
The number of CO2 cylinders required to be injected is indicated on the connection box.
Question 69.
According to the guideline support document for electricity SOGs - What factors affect voltage gradient at wires down?
. The voltage gradient depends on:
~ Composition of the ground- eg concrete, road, surface, soil.
~ Moisture Content
~ Voltage of electrical source
Question 70.
According to the guideline support document for electricity SOGs - Conductors allow electricity to easily pass through them. List five conductors.
Conductors allow electricity to easily pass through them. Examples are:
* Metals (eg copper, aluminium, steel) – including ladders, fences, guttering,
roofing
* Human body
* Timber and trees
* Flame and dense smoke
* Vehicle tyres
* Some fire extinguishing mediums
* Wet or dirty rope
* Water – including hose lines
Question 71.
According to the guideline support document for electricity SOGs - Name four measures to control the risks associated with electricity.
The SOGs emphasise safety and hazard awareness, to control the risks associated with electricity. Essentially, they state:
* Stay away from the hazard. Always regard it as live until you know
otherwise.
* Assess the risks from at least 8 metres away from the hazard.
* If suspected to be electrically hazardous, establish an Exclusion Zone.
* Have the electricity company isolate power.
* When leaving the incident site, if possible, provide information to the owner or other responsible person on the hazards still present at the site and the control measures in place.
Question 72.
As listed on the SIMS Worksheet: Electrical safety kit - State the inventory stored in the green canvas bag of the electrical safety kit.
The electrical safety kit consists
of a canvas bag containing:
* Insulating gloves
* Leather overgloves
* 2x Non-contact voltage detector(Modiewark,glm)
Question 73.
According to Recommended practice - When using the gloves from the electrical safety kit, what is the correct donning sequence?
To wear electrical gloves:
~ Put on the electrical gloves first.
~ Put leather over-gloves on over the electrical gloves to protect from damage.
~ The cuff of the elec glove must extend beyond the cuff of the over-glove.
~ The cuff of the elec glove must be above the cuff and sleeve of your ppc.
Question 74.
According to SOGs - FRNSW has an interagency notification policy, list the reasons NSW Police are required to be notified.
Possible terrorist incident
Crime investigation site
Crowd, traffic and evacuation management
Rescue incidents
Question 75.
You are responded to fire in a Correctional facility, centre or complex operated by government agencies or private contractors. As stated in FRNSW SOGs on arrival what actions should be taken?
On arrival
* Identify and liaise with the Emergency Coordinator.
* While waiting to enter, start developing the IAP by accessing information – eg pre-incident plans, SOGs, and utilities.
* Where entry to the facility is delayed, nominate a staging area and advise FireCOM to inform responding resources. Remain in the staging area until met by the Emergency Coordinator. Notify FireCOM if entry is delayed.
Always remain outside facility on standby if it is unsafe to enter.
* At the main entry, access the Red Fire Emergency Plan Box containing the FRNSW pre-incident plan, safety data sheets folder, site plans, and Local Emergency Plans (LEPs) and brief crew about the facility.
* Prepare the appliance and secure equipment before entering the facility.
List all equipment to be taken in