Ch 7 pg 166-174 aerial ladders
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Questions and Answers

What is the primary consideration when selecting ladders by length for a community?

  • The capability of personnel to handle multiple ladders
  • Extension ladders as the primary option (correct)
  • The average height of community buildings
  • The number of different types of ladders available

    • What adjustment should be made for estimating ladder length on residential buildings?

  • Subtract 3 ft from the total height calculation
  • Add 7 ft for window and sill height
  • Assume a height of 12 ft between floors
  • Use a standard 9 ft between floors (correct)

    • When estimating the required ladder length for commercial buildings, what floor-to-floor height should be assumed?

  • 9 ft between floors
  • 12 ft between floors (correct)
  • 15 ft between floors
  • 10 ft between floors

    • What is the NFPA requirement for ground ladders?

    <p>168ft</p> Signup and view all the answers

    What percentage of a ladder's total length is typically lost to the inclined position at a 70° climbing angle?

    <p>6%</p> Signup and view all the answers

    How can firefighters quickly estimate the proper foot placement of a ladder for safe climbing?

    <p>Divide the working height of the ladder by four.</p> Signup and view all the answers

    What should firefighters consider when positioning a ladder to account for building characteristics?

    <p>Eaves, balconies, and overhangs.</p> Signup and view all the answers

    What is a key indicator that a firefighter has a proper climbing angle when reaching for ladder rungs?

    <p>The firefighter can extend their arms fully to chest height while standing on the bottom rung</p> Signup and view all the answers

    What is not a task that a shorter ladder could suffice for?

    <p>Ventilation or overhaul</p> Signup and view all the answers

    What is the average width of a firefighter with a SCBA on their back?

    <p>20in</p> Signup and view all the answers

    What is a significant drawback of aluminum ladders in relation to heat exposure?

    <p>They may weaken without visible changes in shape.</p> Signup and view all the answers

    What indicates that an aluminum ladder may have reached dangerous temperatures?

    <p>A heat-indicating label that changes color.</p> Signup and view all the answers

    What is typically the design load specified for fire service ladders?

    <p>750 lb.</p> Signup and view all the answers

    Which type of ladders has primarily replaced wooden ladders due to their lightweight nature?

    <p>Aluminum ladders.</p> Signup and view all the answers

    What must be done immediately if an aluminum ladder shows any signs of discoloration?

    <p>Remove it from service.</p> Signup and view all the answers

    What has caused modern ladders to be heavier than those used in the past?

    <p>Increased width of sections</p> Signup and view all the answers

    Why is realistic training crucial for firefighters using ladders?

    <p>It prepares them for real-world situations they may face.</p> Signup and view all the answers

    What is a must before anyone is sent out to ladder a building?

    <p>A good working knowledge of parts, how they work, their capabilities and proper usage</p> Signup and view all the answers

    What is essential to do if there is visible damage to a ladder?

    <p>Annual service testing and regular inspections of all ladders</p> Signup and view all the answers

    What should be avoided when positioning a ladder?

    <p>Ensuring electrical hazards are accounted for</p> Signup and view all the answers

    How many people should typically use a ladder for every 10 ft in height?

    <p>One person for every 10 ft</p> Signup and view all the answers

    What crucial hand placement should be maintained while climbing a ladder?

    <p>One hand should be on the ladder at all times</p> Signup and view all the answers

    What angle should a ladder be used at to avoid danger?

    <p>The right angle that balances height and stability</p> Signup and view all the answers

    What should be done if the ladder's base cannot be secured?

    <p>Secure the tip</p> Signup and view all the answers

    What is the primary consideration when stepping off a ladder?

    <p>Inspecting the stability of the area your about to enter</p> Signup and view all the answers

    What is a recommended practice to avoid overextending while using a ladder?

    <p>Reposition the ladder instead of reaching too far.</p> Signup and view all the answers

    When working on a ladder you should always use what?

    <p>Use ladder locks or ladder belt to secure yourself</p> Signup and view all the answers

    What specific function is best performed using an elevating platform?

    <p>Removing an unconscious person</p> Signup and view all the answers

    In which scenario might a ladder tower be more effective than an elevating platform?

    <p>To supply reinforcements to the roof</p> Signup and view all the answers

    What is one of the primary uses of aerial devices in firefighting operations?

    <p>Ventilation and roof access</p> Signup and view all the answers

    What is a primary design feature of a tower ladder?

    <p>It has a built-in waterway and sideless escape ladder.</p> Signup and view all the answers

    Which statement accurately describes the limitations of a tower ladder?

    <p>It is not suitable for routine climbing due to lack of sides.</p> Signup and view all the answers

    In terms of operational considerations, what is essential for both ladder types when positioning?

    <p>A clear sight line from pivot point to target is required.</p> Signup and view all the answers

    Which of the following is a benefit of using a ladder tower?

    <p>Good for areas with many large structures and only one aerial device available</p> Signup and view all the answers

    What is one advantage of a tower ladder?

    <p>Unrestricted master stream use at any angle or extension.</p> Signup and view all the answers

    When raising an aerial to the roof how many rungs should it be extended above the level of the roof?

    <p>5</p> Signup and view all the answers

    How do you avoid the twisting of the aerial devices described on page 173?

    <p>Make sure the turntable is in line with the object.</p> Signup and view all the answers

    What is the best position for a basket on a roof with no parapet walls?

    <p>Just resting it on the roof.</p> Signup and view all the answers

    When should you make sure that the basket has been raised above the roof or parapet during operation?

    <p>Before retracting the boom.</p> Signup and view all the answers

    What is the recommended action for high parapet walls (6ft or more) when accessing a roof?

    <p>Using an attic ladder secured to the top sliding section of the boom.</p> Signup and view all the answers

    What is the proper way to position a basket for moderate (3 to 6ft)parapet walls?

    <p>The top rail of the platform should be slightly above the top of the parapet.</p> Signup and view all the answers

    NFPA requires ___ feet of ground ladders

    <p>168</p> Signup and view all the answers

    A __ ft extension ladder can replace a 28, 24, and in a pinch a 20 since nested its 20ft long

    <p>35</p> Signup and view all the answers

    Residential buildings can be estimated _ ft from floor to floor while commercial buildings are __ ft

    <p>9 12</p> Signup and view all the answers

    To reach the second floor window sill requires __ ft of reach

    <p>13</p> Signup and view all the answers

    A quick estimate of the ____ height divided by _ gives you the approximate location to place the butt of the ladder away from the building

    <p>Working 4</p> Signup and view all the answers

    The light weight of aluminum allows 1 person to handle most ladders up to __ ft and two for __ ft extension ladder if they butt it against the building while they raise it

    <p>20 35</p> Signup and view all the answers

    Ladders purchased pre 1984 has sections as little as __ inches wide, now ladders are __ inches wide at the narrowest point

    <p>12 16</p> Signup and view all the answers

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