Truck Company Ladders Flashcards
(27 cards)
Per NFPA 1901 how many feet of ladders should an aerial apparatus carry?
115 feet
How long should the high visibility markings be at the top of a ladder?
18 inches
What safety device has the NFPA required since 1984 and gives an idea of the integrity of the ladder?
Heat sensor indicator
Where are heat sensors indicators place on a ladder?
On the beam below the ladders second rung and at it’s halfway point
What temperature does a heat sensors indicator change color?
300 degrees
If a ladder is exposed to 300 degrees, even for just a moment, what percentage of the load capacity is lost?
25%
What is the main disadvantage of portable ladders compared to aerial ladders?
Limited reach
To ensure all portable ladders can be removed from the ladder bed, later arriving apparatus should not position closer then how many feet behind an aerial apparatus?
30 feet
What is the preferred position for placing a ladder against a window?
At or slightly below the window sill
What is the correct position for heeling a ladder?
Standing on the outside to monitor fire conditions, check for rescue, and to sway away from falling glass and dropped tools
When positioning a ladder for roof access how many rings should extend above the roof line?
3 to 5
When using ladders to establish access to a recessed balcony what position should the ladder be in?
Against the exterior wall with the top two rungs above the area where the railing meets the wall
When interior stairs are compromised what ladder can typically span the length of a stair way?
A 14 foot straight ladder
When using a ladder to span a trench, providing access from one deck or balcony to another, or moving from the roof of one building to another what ladder type should be used?
Bedded extension ladders because the additional ladder beam provides increased strengthening.
What is the minimum distance to maintain from an aerial that came into contact with power lines?
50 feet
What is the preferred method of removing occupants and victims from a structure.
The buildings interior stairs
When throwing ladders how many feet should be estimated for residential and commercial buildings?
9 feet for residential and 12 feet for commercial
How should the firefighter be positioned when descending an aerial with a victim?
The victim should be placed between the firefighter and the ladder
What should the firefighter do if the victim panics while descending the aerial ladder?
The firefighter should press them into the rings with their body and attempt to calm them
Who takes responsibility for positioning the elevated master stream?
The officer
Who takes responsibility for positioning the ladders turn table in a position that allowed the elevated master stream to achieve ideal position?
The driver operator
What is the ideal parking position if there is a potential for structural collapse?
1 1/2 times the structures height
What degree should you flow to achieve maximum reach inside a structure?
30 degrees
What is the most effective form of exposure protection?
Extinguishing the fire
