Chapter 5 Ground Ladders Flashcards
What is the NFPA standard for ground ladders?
1931
What is the NFPA standard for aerial platforms and ladders?
1904
What is the height range for ground ladders?
10-50’
What is the weight limit and safety factor on ground ladders?
750Lb rating and a 4:1 safety rating for a total of 3000 pounds
What are the roof ladder hooks rated at?
1000 pounds each
Per NFPA 1901, how many feet of ladders must an engine carry?
38’ minimum, 1 - 24’ extension, and 1 - 14’ roof ladder
Per NFPA 1904, how many feet of ladders must a truck company carry?
115’
How many firefighters are allowed on a ladder at once?
1 every 10’
How many feet make up a residential story and window distance to the floor?
8-10’ per story and the window is 3’ off the floor
Generally how tall are commercial stories?
12’ and 4’ from sill to the floor
When conducting roof OPS, how many ground ladders are needed?
2 minimum
When laddering a roof, how many rungs should be above the roof line?
4
When laddering a window, where should the tip be placed?
At or just below the sill
When laddering the fire floor, how many ladders should be placed?
Minimum of 3
2 to the fire floor and 1 above
How far should you ladder away from building corners?
24”
