Collapse of BB Chapter 13 Easy
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Questions and Answers

What is the purpose of the engine company officer shining his spotlight on the front doorways?

  • To check for smoke and flames
  • To coordinate with the ladder company
  • To locate the reported address (correct)
  • To signal the driver of the vehicle

    • What is the role of the ladder company roof man?

  • To extinguish the fire
  • To perform vertical venting (correct)
  • To report the presence of fire spread
  • To prepare for ladder removal of a fire victim

    • What does the firefighter assigned the 'outside ventilation' position do?

  • Extinguishes the fire
  • Moves in for aerial ladder positioning
  • Vent windows of a rear room (correct)
  • Reports the presence of fire spread

    • Why does the aerial ladder operator stay with the truck?

    <p>To prepare for venting, ladder removal of a fire victim, or a firefighter in trouble.</p> Signup and view all the answers

    What does the ladder company lieutenant do upon entering the fire building?

    <p>Enters with the engine captain and the forcible entry team</p> Signup and view all the answers

    What does the engine captain do upon entering the fire building?

    <p>Enters with the ladder company lieutenant and the forcible entry team</p> Signup and view all the answers

    What does the ladder company roof man know about the buildings from the fire inspection?

    <p>They have a bulkhead structure and a door at the top of the interior stairway</p> Signup and view all the answers

    What did the captain suspect as the cause of the fire?

    <p>Arson and use of a flammable liquid</p> Signup and view all the answers

    What did the ladder company officer investigate?

    <p>The possibility of hidden fire in the stairway</p> Signup and view all the answers

    What facilitated the firefighters' access to the upper floors?

    <p>The bulkhead door being open</p> Signup and view all the answers

    What did the firefighters discover inside the concealed space of the fallen staircase?

    <p>Fire</p> Signup and view all the answers

    What did the text provide historical context on?

    <p>Stairway fires in multiple-story dwellings at the turn of the century</p> Signup and view all the answers

    What was the role of the captain during the fire extinguishing process?

    <p>Supervising the nozzleman</p> Signup and view all the answers

    What did the firefighters encounter after quickly extinguishing the fire?

    <p>An occupant who confirmed no fire in his apartment</p> Signup and view all the answers

    What type of materials do building codes require for stair components like balusters and stringboards?

    <p>Noncombustible materials</p> Signup and view all the answers

    In which type of stairways do fire departments position initial firefighting hoselines?

    <p>Interior stairways</p> Signup and view all the answers

    Why do many old wooden stairs still exist despite building code changes?

    <p>Building code changes are not retroactive</p> Signup and view all the answers

    What are the three basic types of stairs mentioned in the text?

    <p>Straight-run, U-return, and L-shaped</p> Signup and view all the answers

    In which type of buildings are continuous straight-run stairs commonly found?

    <p>Turn-of-the-century buildings</p> Signup and view all the answers

    What is the distinguishing characteristic of L-shaped stairs?

    <p>They change direction at a 90-degree angle</p> Signup and view all the answers

    Which type of stairs is preferred in modern building construction for space efficiency?

    <p>U-return stairs</p> Signup and view all the answers

    What can firefighters do to assess potential stair collapse risks?

    <p>Examine the underside of a stone tread or landing on U-return stairs</p> Signup and view all the answers

    What is a common cause of U-return steel stair collapse?

    <p>Failure of a stone stair tread</p> Signup and view all the answers

    What type of stairs are vulnerable to early collapse when ignited by flames?

    <p>Wooden stairs without fire-retardant soffits</p> Signup and view all the answers

    What can be a consequence of stone treads heated by fire?

    <p>Cracking and shattering</p> Signup and view all the answers

    What should firefighters avoid when using steel-framed stairs with stone treads?

    <p>Stepping on the intermediate landing</p> Signup and view all the answers

    What should be done in the event of a stair collapse risk?

    <p>Use ladders to span weakened stair rises</p> Signup and view all the answers

    What is a safety measure for climbing weakened wooden stairs?

    <p>Staying close to the wall</p> Signup and view all the answers

    What is a danger posed to firefighters by stone masonry intermediate landings when heated by fire?

    <p>Serious danger</p> Signup and view all the answers

    What can firefighters use to gain access to the floor above in the event of a stair collapse risk?

    <p>Ladders</p> Signup and view all the answers

    What is the role of the ladder company roof man in this scenario?

    <p>To perform vertical venting by accessing the building through an adjoining building</p> Signup and view all the answers

    Why does the engine company officer shine his spotlight on the front doorways of the houses?

    <p>To locate the reported address and spot the number</p> Signup and view all the answers

    What does the firefighter assigned the 'outside ventilation' position do?

    <p>Reports the presence of fire spread and any trapped victims from the rear of the building</p> Signup and view all the answers

    What does the aerial ladder operator do in this scenario?

    <p>Stays with the truck and prepares for venting, ladder removal of a fire victim, or a firefighter in trouble</p> Signup and view all the answers

    What type of materials do building codes require for stair components like balusters and stringboards?

    <p>Noncombustible materials</p> Signup and view all the answers

    In which type of stairways do fire departments position initial firefighting hoselines?

    <p>Interior stairways</p> Signup and view all the answers

    What are the three basic types of stairs mentioned in the text?

    <p>Straight-run, U-return, and L-shaped</p> Signup and view all the answers

    Where are continuous straight-run stairs commonly found?

    <p>Turn-of-the-century buildings</p> Signup and view all the answers

    What type of stairs are vulnerable to early collapse when ignited by flames?

    <p>Wooden straight-run stairs</p> Signup and view all the answers

    What is the distinguishing characteristic of L-shaped stairs?

    <p>They change direction at a 90-degree angle</p> Signup and view all the answers

    What presents a different collapse danger for steel-framed U-return stairs?

    <p>Intermediate landing collapse</p> Signup and view all the answers

    What is the danger posed to firefighters by stone masonry intermediate landings when heated by fire?

    <p>Risk of structural collapse</p> Signup and view all the answers

    What can be a consequence of stone treads heated by fire?

    <p>Weakening of the stairs</p> Signup and view all the answers

    What does stair stability during a fire depend on?

    <p>Design and construction</p> Signup and view all the answers

    What did the firefighters have conflicting views on regarding stair stability during a fire?

    <p>Use of stairwell as a safe place</p> Signup and view all the answers

    What is a common cause of U-return steel stair collapse?

    <p>Failure of a stone stair tread</p> Signup and view all the answers

    What should firefighters avoid when using steel-framed stairs with stone treads?

    <p>Stepping on the intermediate landing</p> Signup and view all the answers

    What can be a consequence of stone treads heated by fire?

    <p>Cracking and shattering</p> Signup and view all the answers

    What is a danger posed to firefighters by stone masonry intermediate landings when heated by fire?

    <p>Collapse</p> Signup and view all the answers

    What is the vulnerability of wooden stairs without fire-retardant soffits?

    <p>Early collapse when ignited by flames</p> Signup and view all the answers

    What is the safety measure for climbing weakened wooden stairs?

    <p>Staying close to the wall</p> Signup and view all the answers

    How can firefighters determine potential stair collapse on U-return stairs?

    <p>By examining the underside of a stone tread or landing</p> Signup and view all the answers

    What is the role of ladders in the event of a stair collapse risk?

    <p>To span weakened stair rises and gain access to the floor above</p> Signup and view all the answers

    What is the most frequent cause of U-return steel stair collapse?

    <p>Failure of a stone stair tread</p> Signup and view all the answers

    What should be assessed in burning buildings to identify potential collapse risks?

    <p>Stairways</p> Signup and view all the answers

    What can be used to gain access to the floor above in the event of a stair collapse risk?

    <p>Ladders</p> Signup and view all the answers

    What is a risk associated with stone treads on steel-framed stairs?

    <p>Collapse and injury to firefighters climbing below</p> Signup and view all the answers

    What did the ladder company officer investigate?

    <p>The possibility of hidden fire in the stairway</p> Signup and view all the answers

    What facilitated the firefighters' access to the upper floors?

    <p>The bulkhead door being open</p> Signup and view all the answers

    What did the captain suspect as the cause of the fire?

    <p>Arson using flammable liquid</p> Signup and view all the answers

    What did the firefighters discover inside the concealed space of the fallen staircase?

    <p>Fire</p> Signup and view all the answers

    What is emphasized as an important fire protection measure for stairway structures?

    <p>Fire-retarding soffits</p> Signup and view all the answers

    What did the ladder company officer do upon encountering an occupant who confirmed no fire in his apartment?

    <p>Continued searching for hidden fires</p> Signup and view all the answers

    What is a common cause of U-return steel stair collapse?

    <p>Improper welding</p> Signup and view all the answers

    What is the role of the ladder company roof man?

    <p>Report on the condition of the bulkhead door</p> Signup and view all the answers

    Stone masonry intermediate landings often collapse?

    <p>under the weight of the firefighter stepping on to them</p> Signup and view all the answers

    What did the text provide historical context on?

    <p>Stairway fires in multiple-story dwellings at the turn of the century</p> Signup and view all the answers

    What did the ladder company officer do upon entering the fire building?

    <p>Investigated the possibility of hidden fire in the stairway</p> Signup and view all the answers

    What does the ladder company lieutenant do upon entering the fire building?

    <p>Assist in hose deployment</p> Signup and view all the answers

    Study Notes

    Firefighter Stair Collapse Risks and Safety Measures

    • Stone masonry intermediate landings often collapse when heated by fire, posing a serious danger to firefighters.
    • Firefighters have fallen through four to five stories of collapsing stone intermediate landings during fires.
    • Steel U-return stairs with stone treads and unsupported by a steel pan are prone to collapse when the stone breaks.
    • Firefighters can determine potential stair collapse by examining the underside of a stone tread or landing on U-return stairs.
    • Failure of a stone stair tread is the most frequent cause of U-return steel stair collapse.
    • Stone treads heated by fire can crack and shatter, leading to injuries such as broken kneecaps and burns.
    • Firefighters should assess stairways in burning buildings for potential collapse risks and signs of structural damage.
    • Wooden stairs without fire-retardant soffits are vulnerable to early collapse when ignited by flames.
    • Stone treads on steel-framed stairs may collapse and injure firefighters climbing below.
    • Safety measures for climbing weakened wooden stairs include staying close to the wall and avoiding unsupported sections.
    • When using steel-framed stairs with stone treads, firefighters should avoid stepping on the intermediate landing if possible and use the banister for support.
    • In the event of a stair collapse risk, firefighters can use ladders to span weakened stair rises and gain access to the floor above.

    Stairway Fire Incident and Response

    • Two officers witness a fire in a building's upper floors, prompting them to call for a hoseline and water supply.
    • The fire is not a typical garbage fire and is not contained to a specific area.
    • The captain supervises as the nozzleman extinguishes the fire using a hose stream while climbing the stairs.
    • The roof man reports that the bulkhead door was open, facilitating their access.
    • The firefighters quickly extinguish the fire and encounter an occupant who confirms no fire in his apartment.
    • The ladder company officer investigates the possibility of hidden fire in the stairway.
    • The captain identifies signs of arson and suspects a flammable liquid was used to start the fire.
    • The stairway collapses, with a firefighter hanging from the bulkhead doorsill, prompting a rescue operation.
    • The firefighters discover fire inside the concealed space of the fallen staircase and extinguish it.
    • The text provides historical context on stairway fires in multiple-story dwellings at the turn of the century.
    • It highlights the fire protection measures in modern multistory dwellings, including fire-retarding materials and self-closing doors.
    • The importance of fire protection for stairway structures, such as fire-retarding soffits, is emphasized.

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    Description

    Test your knowledge of firefighter safety in relation to stair collapse risks and safety measures with this quiz. Learn about the potential dangers of stone and steel stairs in burning buildings, and understand the safety protocols and preventive measures to minimize the risk of injury to firefighters.

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