Truck Company Operations

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Questions and Answers

What is the primary function of a truck company at a fire scene?

  • To initiate the fire attack before the engine company arrives.
  • To focus primarily on water supply and hoseline deployment.
  • To handle only ventilation and laddering operations.
  • To provide support to the fire attack, enhancing scene safety and operations. (correct)

When positioning an aerial apparatus, what is the most crucial factor to consider?

  • Ensuring the apparatus is level, regardless of obstacles.
  • Parking as close as possible to the building.
  • Understanding the capabilities of the apparatus and potential obstructions. (correct)
  • Prioritizing a quick setup over strategic placement.

When should a driver consider short-jacking an aerial apparatus?

  • When the aerial needs to be rotated beyond its standard reach.
  • When operating on narrow roadways to facilitate aerial placement. (correct)
  • When operating on any street with parked cars.
  • When the angle of the apparatus to the building is less than 45 degrees.

What is the significance of the term 'scrub area' in truck operations?

<p>It indicates the area where the ladder can be effectively used to access windows and roofs. (C)</p> Signup and view all the answers

What distance is generally considered to be within the collapse zone of a building?

<p>One and a half to two times the height of the building. (B)</p> Signup and view all the answers

Why is turntable placement considered key to taking a good position with an aerial apparatus?

<p>It maximizes the reach and operational flexibility of the aerial device. (C)</p> Signup and view all the answers

What is a disadvantage of rear-mount aerial apparatus compared to mid-mounts?

<p>Rear-mounts use up usable length extending over the front of the truck. (B)</p> Signup and view all the answers

Which of the following is an advantage of mid-mount aerial platforms?

<p>Clear view out the windshield and easier spotting of the turntable. (B)</p> Signup and view all the answers

In what scenario is ideal positioning for a truck at a commercial occupancy best achieved?

<p>When the truck is positioned in front of the building where at least two sides of the roof may be accessed. (C)</p> Signup and view all the answers

What is the recommended placement strategy for a second arriving truck at a commercial structure fire?

<p>Proactive placement providing forethought to a potential defensive operation. (A)</p> Signup and view all the answers

Which of the following is a key deductive assumption to be undertaken during fireground operations?

<p>Assume the building is occupied, and search any searchable spaces. (A)</p> Signup and view all the answers

What is the safest means to conduct a search during fireground operations?

<p>A coordinated search in conjunction with offensive fire attack. (D)</p> Signup and view all the answers

According to the provided content, which of the following is the first priority in the hierarchy of truck company functions?

<p>Forcible entry/exits (D)</p> Signup and view all the answers

What benchmark should a truck company aim to complete in the first 5-10 minutes of arrival at an incident?

<p>Completion or consideration of the first seven tasks in the truck company hierarchy. (C)</p> Signup and view all the answers

What is the rule of thumb for positioning a second truck at a structure fire?

<p>Take the side of the building opposite the first truck to disperse equipment effectively. (B)</p> Signup and view all the answers

When considering entry into a structure during a fire, what additional aspect should be considered besides just getting in?

<p>The means of exit should evacuations be needed. (C)</p> Signup and view all the answers

What is the chief consideration regarding door control once entry is made into a structure?

<p>Preventing the spread of fire and smoke by limiting airflow. (B)</p> Signup and view all the answers

What is the primary function of the Rapid Intervention Team (RIT) at a fire scene?

<p>To create ingress and egress points, enhancing safety for responders. (C)</p> Signup and view all the answers

As a general rule for search and rescue, what types of spaces should be considered searchable?

<p>Any spaces without heavy fire showing. (D)</p> Signup and view all the answers

What action should be taken once all areas have been cleared during a primary search?

<p>Notify command of a primary all clear. (B)</p> Signup and view all the answers

What type of rope is used in a RASP (Rope Assisted Search Procedure) and how is it marked?

<p>A 150' rope woven with Kevlar and reflective thread, marked every 25' with a small cone. (B)</p> Signup and view all the answers

During a VEIS (Vent Enter Isolate Search) operation, what should be at the forefront of a firefighter's mind?

<p>Blocked ingress/egress and confined searchable spaces. (C)</p> Signup and view all the answers

According to the document, what size is considered to be the minimum size for a textbook ventilation hole?

<p>4'x4' (A)</p> Signup and view all the answers

What is the recommended action if the Incident Commander (IC) orders a withdrawal from the roof during ventilation operations?

<p>All companies from the interior below the area should be removed. (C)</p> Signup and view all the answers

When performing ventilation on a commercial flat roof, what is a reasonable benchmark for the time it should take, with adequate resources?

<p>4-6 minutes (B)</p> Signup and view all the answers

When should ventilation be conducted as close to the fire as possible?

<p>To limit the potential for lateral fire extension. (B)</p> Signup and view all the answers

What should firefighters look for on a building with solar panels before commencing ventilation?

<p>A shutoff switch for the solar panels. (B)</p> Signup and view all the answers

What is the greatest problem associated with knee walls in older homes during firefighting operations?

<p>They create additional void spaces, potentially harboring fire or victims. (D)</p> Signup and view all the answers

Under which of the following circumstances is vertical ventilation typically NOT advisable?

<p>When there is a fully involved structure. (A)</p> Signup and view all the answers

What is a key indicator of increasing fire intensity or potential structural compromise?

<p>Smoke seeping through shingles. (D)</p> Signup and view all the answers

For positive pressure attack (PPA) to be effective, what condition must be met?

<p>An outlet of sufficient size closest to the compartment of fire must be provided. (D)</p> Signup and view all the answers

What is the main purpose of a roof report, similar to a 360 assessment, during firefighting operations?

<p>To ensure roof integrity, stability, and relay needs to command. (D)</p> Signup and view all the answers

What is considered the most important piece of information the 360 assessment gives the officer?

<p>The rescue or survivability profile. (C)</p> Signup and view all the answers

What is the approximate maximum time humans can survive with 15% oxygen or less?

<p>4-6 minutes (B)</p> Signup and view all the answers

What is the estimated average working time a firefighter has with a 45-minute SCBA before reaching a low air alarm?

<p>20-25 minutes (D)</p> Signup and view all the answers

In apartment units, where are bedrooms generally located?

<p>Opposite the front door. (D)</p> Signup and view all the answers

What is the preset temperature threshold for heat sensors on ground ladders, which necessitate retesting if triggered?

<p>300°F (A)</p> Signup and view all the answers

According to provided statistics, what is the most frequent cause of mayday situations?

<p>Being lost or separated from hoseline. (A)</p> Signup and view all the answers

What percentage of mayday rescues are accounted for by RIT (Rapid Intervention Team) operations?

<p>7.9% (A)</p> Signup and view all the answers

During what time frame do the majority of mayday events occur?

<p>0000 to 0600 (B)</p> Signup and view all the answers

Flashcards

Truck Company's Primary Function

Supporting fire attack by the engine company

Majority of Truck Operations

Search and rescue, ventilation, laddering, and utility control.

Apparatus Positioning Mindset

Always leave room for the apparatus to take up optimal position.

Key to Aerial Positioning

Understanding the specific capabilities of your apparatus.

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Narrow Roadway Consideration

Using short-jacking to enable aerial operation in confined spaces.

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Greatest Burden for Apparatus Placement

Upper floor rescue and egress operations.

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Scrub Area

Any area accessible by the ladder.

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Collapse Zone Distance

1 ½ to 2 times the height of the building.

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Key to Good Positioning

Positioning the turntable.

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Mid-Mount Advantages

Clear view out of the windshield and lower center of gravity.

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Ideal Truck Position

Front of the building where at least 2 sides of the roof may be accessed.

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Truck Placement for Commercial Occupancies

Position on the corner of the building.

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Deductive Assumption #1

Occupied until proven otherwise.

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Safest Search Method

Search in conjunction with fire attack.

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Truck Company Function #1

  1. Forcible entry/exits
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Truck Company Function #2

  1. Search and rescue
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Truck Company Function #3

  1. Ventilation
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Truck Company Function #4

  1. Reconnaissance
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Truck Company Function #5

  1. Placement of ground ladders
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Truck Company Function #6

  1. Elevated master streams
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Truck Company Function #7

  1. Utility control
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Benchmark for Truck Company

Completion of the first seven tasks in the initial 5-10 minutes.

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Rule of Thumb: Second Truck

Take the side of the building opposite the first truck.

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Search and Rescue

Primary function of the truck company.

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Searchable Spaces Rule

Any spaces without heavy fire showing.

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VEIS

Vent, enter, isolate, search.

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When to use VEIS

When ingress/egress is blocked.

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Vent Hole Time

Take less than 90 seconds.

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Most Stable Roof Area

The ridge.

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Reason for No-Go Ventilation

Fully involved structure.

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Positive Pressure Attack Requirement

Insufficient outlet size relative to the fire.

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Roof Report Contents

Integrity, conditions, stability, needs, recommendations.

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Key 360 Information

Rescue or survivability profile

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Human Body Heat Tolerance

160 dry heat and 130 moist heat.

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Human Survivable Oxygen Level

15% oxygen.

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Bedroom Location in Apartments

Opposite the front door.

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Most Frequent Mayday Cause

Lost or separated from hoseline.

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Units involved in Maydays

1st or 2nd arriving unit.

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Greatest Mayday Preventative

Situational awareness.

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Study Notes

Truck Company Purpose

  • The main function of the truck company is to support fire attack and the engine company

Truck Operations

  • Make the scene safer
  • Search and rescue
  • Perform ventilation
  • Laddering tasks
  • Remove utilities

Apparatus Positioning

  • Adopt a "Position, don't park" mindset
  • Leave adequate space for the truck
  • Prioritize understanding the apparatus capabilities for aerial positioning
  • Use short-jacking for aerial placement on narrow roadways

Aerial Considerations

  • Do not rotate the aerial to the side if outriggers aren't extended
  • Be aware of turntable positioning
  • Look for overhead obstacles, and the intended target

Apparatus Placement Factors

  • Placement depends on the task
  • Prioritize upper floor rescue and egress operations
  • Placing the turntable is key

Scrub Area Defined

  • Any area accessible by the ladder
  • Greater scrub area means more window and roof access

Collapse Zone Distance

  • Collapse zones range from 1 1/2 to 2 times the building height

Apparatus Types

  • Mid Mount Platforms: have the best reach from either side
  • Rear Mount: have the best reach from either side and rear
  • Rear Mounts: Disadvantage is that they eat up length equal to the truck's length
  • Mid-Mounts: advantages include a clear windshield view, turn table spotting, and a lower center of gravity for driving and handling
  • Mid-Mounts: disadvantages include limited shallow angles, less forgiving safety overrides, and dead spots

Turntable Placement

  • Turntable placement square to the target makes platform work difficult because access doors are in the corners

Ideal Truck Positioning

  • Position the truck in front of the building where at least 2 sides of the roof may be accessed

Commercial Occupancies

  • Place the truck at the building corner
  • Good second truck position supports transition to a defensive operation
  • Staging down the street is an inappropriate position for the second truck

Fireground Function Assumptions

  • Assume occupancy, search all spaces
  • Coordinate offensive fire attack and search with ventilation
  • Base offensive attack upon unoccupied building determination on experience and judgment

Truck Company Function Hierarchy (1-7)

  • Forcible entry/exits
  • Search and rescue
  • Ventilation
  • Recon
  • Ground ladder placement
  • Elevated master streams
  • Utility control

Truck Company Function Hierarchy (8-10)

  • Salvage
  • Overhaul
  • Rapid intervention

Truck Company Benchmark

  • Completing or considering the first seven tasks within 5-10 minutes of arrival

Second Truck Positioning

  • Position on the building side opposite the first truck for effective equipment dispersal

Entry Considerations

  • Entry should include a means of exit for needed evacuations

Door Control

  • Door control is essential after entry

RIT Team's Role

  • Create ingress and egress points to improve building safety for responders

Search and Rescue Priority

  • Search and Rescue is the primary function
  • Spaces without heavy fire should be considered searchable
  • Notify command after clearing all areas

Search Types

  • Oriented search
  • Split search
  • Right or Left standard search
  • Rope assisted search procedure (RASP)
  • Vent enter isolate search (VEIS) or Window Search

Large Occupancy Warning

  • Not being able to see your feet in a large occupancy is a dangerous red flag

RASP Rope Specs

  • Kevlar-woven, reflective 3/8" rope, 150' long
  • Cones every 25' mark distance from tie-off
  • Includes three 25' taglines for main rope connection

Victim Discovery Protocol

  • Alert team leader who radios a CAN report including removal plans

Search Assistance

  • Flex a third member to assist with a definite job

VEIS Priority

  • Keep VEIS in mind when: Ingress/egress is blocked, Rooms are the only option, Known intel of a victim located in a specific room/space

Ventilation Protocol

  • Withdraw all interior companies below if IC orders roof withdrawal due to collapse risk

IFSTA Textbook Hole Size

  • 4'x4'

Vent Hole Size

  • 4'x8' hole is deemed minimum size

Ventilation Time

  • Vent hole should take less than 90 seconds from the time you step on the roof

Residential Saw Team

  • 2 members per saw

Stable Roof Area

  • The ridge above the eaves is the most stable area

Commercial Roof Ventilation

  • Commercial flat roofs will require more personnel and equipment
  • Expect 4-6 minutes as a benchmark

Ventilation Tactics

  • Vent as close to the fire as possible to prevent lateral extension

Residential Ladder Positioning

  • Position the ladder on the building side opposite the fire if possible

Solar Panel Safety

  • Solar panels have a shutoff switch near the ele panel, but they will not de-energize the array

Half Stories and Knee Walls

  • Older homes usually have half stories or knee walls with roofs steeper than 45 degrees

Knee Walls Hazard

  • Knee walls can create additional void spaces

Large Occupancy Ventilation

  • A vertical ventilation truck company should function as one in a large commercial or multi-dwelling occupancy

Engineer Positioning

  • If conditions are changing rapidly it may be best for the engineer to stay on the turn table

No-Go Ventilation Reasons

  • Fully involved structure
  • Interior cannot be classified as IDLH
  • Occupants are unlikely to be displaced after extinguishment
  • Imminent roof collapse over a large area
  • Multi-story buildings with no top floor or attic involvement

Signs of Increased Cation

  • Smoke seeping through shingles
  • Steep or unwalkable roof
  • Heavy fire involvement in void spaces

Roof Visibility

  • Low or zero visibility on the roof

Positive Pressure Ventilation (PPV)

  • Use PPV when “fire under control” is achieved in order to be effective, ensure an outlet is located close to the compartment
  • Wait 15 to 60 seconds for the smoke to clear

Roof Report Contents

  • The roof report is like a 360, including: Roof integrity, Found conditions, Existing issues, Stability, Needs, and Recommendations

First Truck Engineer Tasks

  • First truck engineer laddering apartments and commercial buildings should provide report
  • They may not step fully on the roof, and ascend and provide info to command

360 Assessment Priority

  • Rescue or Survivability Profile

Heat Tolerances of the Body

  • The body can only tolerate 160 degree dry heat and 130 degree moist heat for a short amount of time

Oxygen Tolerance of the Body

  • Humans can only survive with 15% oxygen or less for 4 to 6 minutes

SCBA Duration Estimate

  • 45 minute SCBA lasts 20-25 minutes under working conditions
  • Use this to calculate search personnel needs in 20-25 minute scenarios

Large Windows

  • Large windows are not bedrooms but living rooms

Bedroom Location

  • Bedrooms generally located opposite the front door of apartment units

Ground Ladder Heat Sensors

  • Ground ladders heat sensors are preset to 300F, if one is blackened or triggered the ladder must be retested

Street Gas Pressure

  • Gas flows from the street as high as 60 psi but the meter itself reduces it to approximately 0.5 psi (res)

Mayday Cause

  • 18.3% are lost or separated from the hoseline

Mayday Unit Involvement

  • 83% involve 1st or 2nd arriving unit

Mayday Rescue Credit

  • Rapid intervention team accounted for 7.9% of rescues

Mayday Time of Day

  • 53% occur from midnight to 0600, with 70% occurring at night

Mayday Scene Time

  • 51.8% occur between 20 and 35 minutes on scene

Mayday Reporting

  • 31% of Mayday situations were not reported as Mayday situations

Situational Awareness

  • Situational awareness is our best preventative method against a mayday situation

Hallway Stretch Key

  • Ability to work without being on air

Stairwell Stretch

  • Perform stairwell stretch with smoke or fire on the fire floor at the stairwell door

Hoseline Attachment

  • Attach the hoseline to the standpipe 2 floors below the fire floor

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