Ladders Flashcards
Use of ladders
quick rescue operations, immediate roof access, access to upper floors and emergency
egress for interior crews.
Ground ladders are the quickest method to gain roof access on…
1-3 story buildings for vertical ventilation.
“Ground Ladders are…”
“…an avenue for work”
7 Ladder Rules
- Always look up and ahead to clear overhead obstructions.
- Do not move or remove a ladder that is already in place. If it is necessary to
relocate the ladder, it must be properly communicated. - Ensure the dogs are locked.
- Foot or secure the ladder whenever possible.
- Wear appropriate PPE.
- When not locked in, always keep one hand on the ladder.
- Throw one ladder; Throw two ladders.
A typical structure fire should have a minimum of…
- One working set of ladders for roof operations
- At least two egress ladders to each upper floor
There should be a working set of ladders
for each company
PROOFED
P - PPE
R - Removing a ladder is dangerous
O - One ladder, throw two ladders
O - One hand on the ladder
F - Foot the ladder whenever possible
E - Eyes up (clear overhead!)
D - Dogs locked
Our Ladders are made of what?
6061 T6 Alloy Aluminum.
Who is the Manufacturer of CCCFPD Ladders?
Duo Safety from Oshkosh Wisconsin
What style are the Beams?
Solid, C channel beam
What is the radius of the rungs?
1 1⁄4”
What are the Rung Plates made of and how many rivets do they have?
Made of aluminum and riveted on with four rivets
What is the size and rating of the Roof Hooks on the roof ladder?
3⁄4” steel roof hooks
1,000 lb load rating per hook (2,000 lb per pair)
Spring loaded, swiveling, and locking assembly.
What is the weight rating for extension, roof, and fresno Ladders?
750 pounds with a 4 to 1 safety factor (3,000 lbs).
What is the weight rating for attic ladders?
300 Pounds
Halyard Tensile Strength? What do red vs white halyards mean?
10,100 lb
White halyard - Engines
Red halyard - Trucks
Heat Sensors: What color? Where are they? What temp do they turn?
Orange sensors turn black when exposed to 300 degrees
- 4 per section
- Between the second and third rung below the tip
- In the center
What are the Dogs made of? What are the 3 components?
Graphite covered aluminum
Finger, hook, and spring.
NFPA 1901
Fire engines must carry a minimum of 38’ worth of ground ladders
NFPA 1904
Fire trucks must carry a minimum of 115’ worth of ground ladders
NFPA 1931
Standard for manufacturer’s design of fire department ground ladders
Roof Ladders Sizes
10’, 12’, 14’, 16’, and 20’
Rung to Rung for All Ladders
14 Inches
Ladders on a Type 1 Engine
14’ Roof Ladder, 10’ Attic Ladder, 24’ Extension Ladder
Ladders on a Type 3
16’ Extension Ladder
Ladders on a Truck
10’, 12’, (2) 16’, and 20’ Roof Ladders, (2) 24’ and (2) 35’ Extension Ladders, 10’ and 12’ Attic Ladder, and a 14’ Fresno Ladder
Extension Ladders Sizes
16’, 20’, 24’, 28’ and 35’
Ladders on a Rescue
- (2) 14’ Roof Ladders
- 24’ extension Ladder
How wide are roof ladders?
19 Inches
10’ Roofing Ladder Weight
22 Pounds
14’ Roofing Ladder Weight
28 lbs
16’ Roofing Ladder Weight
39 lbs
20’ Roofing Ladder Weight
48 lbs
10’ 12’ 14’ Roof Ladders Beam Width
2 3⁄4”
16’ 20’ Roof Ladders Beam Width
3 1⁄4”
35’ Extension Ladder Weight
122 lbs
24’ Extension Ladder Weight
72 lbs
16’, 20’, & 24’ Extension Ladder Beam Width
2 3⁄4”
35’ Extension Ladder Beam Width
3 1⁄4”
Extension Ladder Sizes
16’, 20’, 24’, 28’ and 35’
16’ Extension Ladder Weight
65 lbs
20’ Extension Ladder Weight
80 lbs
16’, 20’, 24’, 28’, 35’ Extension Ladder Bedded Lengths
7’ 2”, 8’ 4”, 14’, 16’, 20’
16’ 20’ Extension Ladders # of Sections
3
10’ Attic Ladders Closed Length
11’ 1⁄4”
What is the width of an Attic Ladder? (Both Are the Same)
12”
What are the weights for the 10 and 12 foot Attic Ladders?
10’ is 16 pounds
12’ is 20 pounds
What kind of Rope is the Halyard?
STA-SET New England Rope, 1⁄2” polyester braid on braid kernmantle rope.
How are rungs made? How many knurls and what are they for?
Extrusion
Each rung 20 knurls
Knurls are made for grip and water run off
How are rungs attached to the beams?
Rungs are welded on at the beams and expanded between the beams and rung plates.
12’ Attic Ladder Closed Length
12’ and 10 3⁄4”
What is the purpose of the Fresno Ladder?
It is ideal for interior operations, similar to an attic ladder.
Attic ladder butts have ____ instead of spurs.
Safety shoes
Describe attic ladder beam shape and attachment
Square rungs that are riveted on
Where do the rungs of an attic ladder sit when they are collapsed?
Inside of the beams
How many rungs above the roof for ventilation?
3-5, preferably 5
Where to place a ladder for rescue on a balcony?
Conscious - 3 rungs above the balcony
Unconscious - Centered on the top rail of the balcony
Both at 65 degrees
Where to place a ladder for rescue out of a window?
Centered just below the sill at 65 degrees.
What is a working set of ladders for ventilation?
A primary and a secondary
Where is the primary ladder placed for ventilation?
Away from the fire to progress from “unburned to burned” area
Where is the secondary ladder placed for ventilation?
Near where the vent hole is being cut
How to signal to ground crews where to put a ladder?
Place a flashlight or drop a rope bag
Where should the first egress ladder go for a structure fire?
Nearest to the fire
Where should a ladder go to a balcony when there is no suspicion of rescue? (or for a conscious rescue)
No more than 3 rungs above the railing to assist with visualization
What is the minimum amount of ladders for a structure fire?
Working set on the roof (a primary and a secondary), and 2 for every floor
What will I always carry when going up a ladder?
A rope bag
Bedded lengths
Number of rungs
What is the bedded length of a 16’ extension ladder?
7’2”
What is the bedded length of a 20’ extension ladder?
8’4”
What is the bedded length of a 24’ extension ladder?
14’
What is the bedded length of a 35’ extension ladder?
20’
How many rungs are on a 16’ extension ladder?
18 rungs
How many rungs are on a 20’ extension ladder?
21 rungs
How many rungs are on a 24’ extension ladder?
24 rungs
How many rungs are on a 35’ extension ladder?
34 rungs
How many roof ladder types are there?
5 - 10’, 12’, 14’, 16’, & 20’
(jumps by 2’s then big jump)
How many extension ladder types are there?
5 - 16’, 20’, 24’, 28’ & 35’
(jumps by 4’s then big jump)
What is the bedded length of a 28’ extension ladder?
16’
How many rungs are on a 10’ ladder?
8
How many rungs are on a 12’ roof ladder?
9
How many rungs are on a 14’ roof ladder?
11
How many rungs are on a 16’ roof ladder?
13
How many rungs are on a 20’ roof ladder?
16
Between what rungs are the 35’ ladder low shoulder carried?
2 and 3
How is a 14’ and 24’ ladder stored on a KME?
The 5th rung (the one that is next to my face when carrying) butts up against the farthest back rack
