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HFD Guidelines: II-47 Structure Fire incidents fully solved already passed
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HFD Guidelines: II-47 Structure Fire incidents fully solved already passed
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HFD Guidelines: II-47 Structure Fireincidents fully solved already passed
360 Building Assessment: - correct answer ✔✔The following are guidelines for 360 building assessment:
1. Identify known or potential rescue problems.
2. Identify active and potential flow paths of fire and fire gasses.
3. Identify the location and extent of fire.
4. Determine the size, age and construction type of the building.
5. Assess structural stability.
6. Identify other hazards (i.e. electrical, exposures and access).
7. This is a mandatory step in our size-up whenever possible; a three sided
assessment is not sufficient.
360 Report: - correct answer ✔✔A report given over the radio after a 360 assessment of the building has
been completed. The report should communicate to personnel on the fire ground and responding units
all pertinent information concerning hazards, obstacles, location and extent of the fire.
Bi-directional Flow: - correct answer ✔✔Movement of the products of combustion through an opening,
characterized by heat and smoke exiting the upper portion of the opening and inward rushing air
through the lower portion of the opening. The two flows are competing for space in the same opening.
See Figure 1 and appendix II for further explanation.
CAN Reports: - correct answer ✔✔A compact, concise communications process that provides the
recipient with the most pertinent information. The message sender gives the Conditions they have, the
Actions they are taking and the Needs from their position. This emergency communications format
should be used at all levels of the incident organizational structure. The CAN Report is most commonly
used as a progress report.
Crew Continuity: - correct answer ✔✔The actions of a firefighting team in which all members of the
assigned unit maintain personal accountability of each other. In an IDLH environment, crew continuity is
maintained by voice, touch or visually seeing each member.
, Defensive Strategy: - correct answer ✔✔Strategic operation initiated when the risk versus benefit
analysis does not justify offensive operations due to fire or structural conditions. Attack lines and all
personnel operate outside the collapse zone using defensive tactics. (See Appendix I for more
information) The transition from a Defensive operation to an Offensive operation will be preceded by the
evaluation of the structural conditions by the IC, in concert with the Division and Safety Officers utilizing
realistic Risk versus Benefit analysis. There are two tactical options when operating in the Defensive
Strategy:
a) Exterior Defensive - all personnel are operating from positions outside the collapse zone. Most
commonly this involves the use of master streams.
b) InteriorDefensivefromaprotectedposition-tacticaloptiontocontrolhorizontal spread of fire. Interior
crews operate in clearly defined interior positions that are not areas of immediate collapse hazards,
and /or, protected by a physical barrier or distance. This tactic requires close coordination and
supervision with IC and/or Division Officers.
Door Control: - correct answer ✔✔Ensuring door/doors providing access to the fire area are controlled
after members enter the structure. Measures must be taken to prevent the door from locking once the
members have entered. This action controls the flow path from the high pressure fire area to the low
pressure area outside of the room of origin. Door control limits fire development by reducing the
amount of fresh air entering the lower level of the open door, moving towards the seat of the fire.
Door Control Firefighter: - correct answer ✔✔Member of the fire attack team responsible for door
control. This member can assist in crew accountability, monitoring the changes in the fire environment
and can be part of the IRIT.
Fire Confinement: - correct answer ✔✔Actions taken to locate and hold a fire to a given area of present
or anticipated involvement by preventing the spread of fire into an uninvolved area.
Fire Extinguishment: - correct answer ✔✔Actions following fire containment to ensure complete
extinguishment, which include removing the basic elements of the fire triangle; fuel, oxygen or heat.
Fire Flow: - correct answer ✔✔The rate of water flow needed to control a fire. Calculated as (L x W) / 3
multiplied by the percentage of involvement.
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