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Collapse of BB CH7 Medium
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Collapse of BB CH7 Medium

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Questions and Answers

What is the purpose of placing a portable ladder against the exposure 4 side in the alley?

  • To provide access to the roof for firefighting operations (correct)
  • To facilitate entry into the building through a window
  • To assist in ventilating smoke from the building
  • To create an escape route for occupants inside the building

    • What is the condition of the walking space on the rooftop along the parapet?

  • Covered with ice and snow
  • Saturated with water from a burst pipe
  • Filled with 6 inches of slush (correct)
  • Blocked by debris and fallen branches

    • What is Exposure 3 according to the description?

  • An open lot which slopes downward in a steep decline (correct)
  • A truck parking lot
  • A street in front of the fire building
  • An alley and a three-story, wood-frame residence

    • What is Exposure 4 adjacent to according to the description?

    <p>A 3-foot alley and a three-story, wood-frame residence</p> Signup and view all the answers

    What should all fire departments develop for operations involving sloping roofs?

    <p>Standard operating procedures based on life safety, fire containment, and property protection</p> Signup and view all the answers

    Why may an older structure not conform to code requirements for roof construction?

    <p>It was built before a local building code was enacted</p> Signup and view all the answers

    What risk do firefighters face when walking on the roof of a burning building?

    <p>Plunging through a fire-weakened structure into a dark, smoky, flaming enclosure</p> Signup and view all the answers

    Why may a sloping roof support fewer firefighters than a flat roof?

    <p>It sheds water and snow when properly pitched, designed to support less live load than a flat roof</p> Signup and view all the answers

    What were the contributing causes of firefighter Brady's survival of a roof collapse incident?

    <p>Fire destruction of the roof deck, lack of collar beams, unanchored wood plates</p> Signup and view all the answers

    What type of roof collapsed in the incident involving Fire Captain Francis Federici?

    <p>Low-pitched hip roof</p> Signup and view all the answers

    What was the primary reason for firefighter Harry Korwatch's death due to a roof collapse?

    <p>Flames from the fire below weakened the 1-inch roof deck</p> Signup and view all the answers

    Which type of wood construction has the largest area of unsupported roof deck?

    <p>Timber truss</p> Signup and view all the answers

    What type of roofs may not support the weight of a firefighter in rural areas?

    <p>Plank-and-beam roofs</p> Signup and view all the answers

    What presents a collapse hazard to firefighters among the roof coverings mentioned?

    <p>Slate and tile shingles</p> Signup and view all the answers

    What are primary structural elements crucial in roof construction?

    <p>Header and trimmer beams, ridge rafters, hip rafters, bearing walls</p> Signup and view all the answers

    What was described as 'bouncy' or 'springy' due to large areas of thin, unsupported material?

    <p>Roof deck</p> Signup and view all the answers

    Which type of roofs is safest to walk on according to the text?

    <p>Rafter roofs</p> Signup and view all the answers

    What material is slate according to the text?

    <p>A rock found in smooth-surfaced layers</p> Signup and view all the answers

    What are examples of tile shingles according to the text?

    <p>Unglazed fired clay, stone, concrete</p> Signup and view all the answers

    What is the main danger posed by falling slate or tile shingles for firefighters?

    <p>The weight and thickness of the shingles</p> Signup and view all the answers

    What can cause a collapse of slate and tile shingles?

    <p>Destruction of the wooden roof deck by fire</p> Signup and view all the answers

    Apart from falling slate shingles, what other objects have posed a risk to firefighters?

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

    What hazard do ice, snow, rain, and humidity pose for firefighters working on slate and tile roofs?

    <p>Extreme slipperiness</p> Signup and view all the answers

    What is a crucial factor in determining the safety of a roof for firefighters to walk and operate on?

    <p>The pitch of the roof</p> Signup and view all the answers

    What equipment can protect a firefighter from a rafter collapse on a peaked roof?

    <p>Roof ladders hooked onto the ridge rafter</p> Signup and view all the answers

    What must fire departments have to safely operate and vent peaked roofs?

    <p>Standard operating procedures and necessary equipment like aerial ladders</p> Signup and view all the answers

    What should firefighters include when preparing a pre-fire plan for a hazardous building?

    <p>The type of roof construction</p> Signup and view all the answers

    What is more likely to cause harm to a firefighter working on a sloping rooftop?

    <p>Losing balance and falling off the rooftop</p> Signup and view all the answers

    How can firefighters protect themselves while operating on peaked roofs?

    <p>Standing and operating from an aerial ladder or platform</p> Signup and view all the answers

    What factor determines whether it is safe for firefighters to walk and operate on a particular rooftop?

    <p>The pitch of the roof</p> Signup and view all the answers

    What makes operating on a peaked roof more dangerous than on a flat roof?

    <p>The need to climb ladders and transfer tools</p> Signup and view all the answers

    What are the three most common types of sloping roofs mentioned in the text?

    <p>Gable roof, hip roof, and gambrel roof</p> Signup and view all the answers

    What necessitates firefighters to operate above, below, or around sloping roofs during firefighting operations?

    <p>Peaked roof's structural framing, roof deck, and shingles pose collapse hazards</p> Signup and view all the answers

    In which location did the fire occur that led to the described firefighting operation?

    <p>Two-story residence building with a sloping hip roof in the Bronx, New York</p> Signup and view all the answers

    What caused the collapse of the roof during the firefighting operation?

    <p>The deck and shingles near the two remaining front hip rafters ripped apart</p> Signup and view all the answers

    What activities are firefighters required to perform on sloping peaked roofs?

    <p>Roof venting, chimney fire operations, and overhauling</p> Signup and view all the answers

    What highlights the unpredictable nature of firefighting operations on peaked roofs?

    <p>The sudden explosion of fire on the roof</p> Signup and view all the answers

    What is mentioned as a potential risk involved in operating on a sloping gable roof?

    <p>The potential collapse of the roof deck</p> Signup and view all the answers

    What type of residence building was involved in the firefighting operation described?

    <p>Brick- and-joist residence building with a sloping hip roof</p> Signup and view all the answers

    What did Ladder 44 firefighter Michael Brady do during the firefighting operation?

    <p>Roof venting, chimney fire operations, and overhauling</p> Signup and view all the answers

    Study Notes

    Firefighting Operations on Peaked Roofs

    • Operating on a peaked roof is more dangerous than on a flat roof due to the need to climb ladders and transfer tools, balance while cutting, and the absence of a parapet to prevent falls.
    • A peaked roof's structural framing, roof deck, and shingles pose collapse hazards, necessitating firefighters to operate above, below, or around sloping roofs during firefighting operations.
    • Firefighters are required to perform activities such as roof venting, chimney fire operations, and overhauling on sloping peaked roofs.
    • The gable roof, hip roof, and gambrel roof are the three most common types of sloping roofs, each with distinct characteristics.
    • A fire occurred in a two-story, brick- and-joist residence building with a sloping hip roof in the Bronx, New York, where firefighters utilized hand lines and an exterior master stream to combat the fire.
    • The roof was badly damaged at the rear, and pockets of fire still smoldered inside the attic, necessitating firefighting activities on the sloping roof.
    • Ladder 44 firefighter, Michael Brady, entered the attic space, and three firefighters were working on top of the hip roof when the roof suddenly started to collapse.
    • The deck and shingles near the two remaining front hip rafters ripped apart, and the peak of the roof fell, sliding down around a masonry chimney, causing eaves to push out beyond the bearing walls on both sides.
    • The detailed description of a firefighting operation on a sloping gable roof involving the use of a power saw, portable ladder, and axe to create a vent cut to release smoke and flames from the building.
    • The challenges and risks involved in operating on a sloping gable roof, including the need for caution due to ice on the roof, the use of a portable ladder for access, and the potential collapse of the roof deck.
    • The need for coordination and communication among firefighters, as evidenced by the orders given by the officer to vent windows from the rear and the firefighter's response to the collapsed roof incident.
    • The intense and chaotic firefighting environment, with the roaring of pumping engines, crashing of glass, and the sudden explosion of fire on the roof, highlighting the unpredictable nature of firefighting operations on peaked roofs.

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    Description

    Test your knowledge of emergency response scenarios with this quiz about a dramatic firefighter rescue. This quiz presents a situation involving a collapsed roof and the actions taken by the firefighters to navigate the crisis.

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