Chapter 22 Flashcards
Chapter 22 Ladders p254
What should the length and quantity of ladders that you have on your apparatus should tie to?
the buildings in your area, and what you are doing in relation to your fires.
Chapter 22 Ladders p254
What are two agencies who produce guidelines for the ladders that apparatus must carry?
The NFPA, and the ISO (Insurance Services Office) produce minimum guidelines FDs must meet.
Chapter 22 Ladders p254
What are the ISO and NFPA requirements for ladders carried by Quints, Aerial ladders?
Quint Aerial Ladder
NFPA 85ft. 115ft
ISO 150ft. 159ft
Feet of ladders
Chapter 22 Ladders p255
What is the danger when misjudging heights using straight ladders?
If you misjudge and have too much ladder the angle will be very low. Low angles tend kick out the feet of ladders.
If you misjudge and there is not enough ladder the angle will be too tight against the wall which can cause the ladder to pull away from the structure as you ascend.
Chapter 22 Ladders p256
Windowsills are usually ___ ft from the ground.
3’
Chapter 22 Ladders p256
Roof ladder
Straight ladder with hooks
Chapter 22 Ladders p258
If you have yet to do a size up of the side of the building you need to ladder, what is the most appropriate ladder choice?
the appropriate extension ladder, due to a more forgiving nature that straight ladders.
Chapter 22 Ladders p258
What are the basic parts of an extension ladder?
Bed section: base unmoving section
Fly sections: moveable section
Sisal Halyard: rope to lift fly section:
Dogs: locks keep fly section in place
Chapter 22 Ladders p258
How is the halyard tied on a new extension ladder?
With the loose end of the halyard tied to both sections, impossible to raise the fly section without uniting the knot.
Chapter 22 Ladders p259
What lengths of extension ladders can be effectively maneuvered by one person?
24, 25, 28, 35.
Chapter 22 Ladders p259-261
What are three methods for single FFers portable ladder and tool carries?
Low Shoulder carry- perhaps the most common carry. FFer rest beam of ladder on shoulder, place one arm through the rungs, and grasp the rung with one hand. Tools carried in opposite hand.
High shoulder carry- lowest beam sets on shoulder, to control the ladder both hands will need to grasp rungs. Less advantageous than low shoulder carry.
Ladder Drag- place tools on ladder and go, can also be used to carry multiple ladders (straight w/ roof hooks and extension work best)
Chapter 22 Ladders p261
What are the two methods of dragging multiple ladders?
- hooking roof ladder on top of extension.
2. placing extension on roof ladder, where hooks of the roof ladder capture the extension ladder
Chapter 22 Ladders p262
What type of markings should be used on ladders and how should the ladders be marked?
Mark the balance point and ladder tips
Use reflective tape or some sort of reflective material
Chapter 22 Ladders p263
What is the ideal situation for ladder placement?
One ladder on every side of the building and at least one ladder to each floor
Chapter 22 Ladders p263-265
Order of ladder placement?
- Fire floor, think about best placement
- Floor above the fire, avoid directly above (1st if fire on first floor)
- Top floor
- All floors between
- To the roof (flat roof: #4, and all floors is #5)
corners can be covered by one ladder, avoid over entry doors
Chapter 22 Ladders p26
none
Chapter 22 Ladders p265
From where are fires in peaked roof residential dwellings best extinguished?
from inside and below
Chapter 22 Ladders p265
What are the two one man ladder raises?
Method one: dip and dive- takes portable ladder right from the shoulder carry, in one movement to the building.
Method two: beam side- place ladder perpendicular to building, member the lifts, gets under and pushes and slides along the beams, moving ladder to vertical position.
Chapter 22 Ladders p266
Dip and dive
Fly out, shoulder carry, OHO
- flatten ladder out, fly up, firmly grab on rung
- in one fluid motion, dip butt down and drive ladder into where the grounding building meet, push up ladder with rung against the building.
- secure the ladder to building, pull base out a bit
- pull halyard to desired height
- roll ladder to position
Chapter 22 Ladders p267
Beam slide
- place ladder on ground fly up, butt at base of building
- lift tip of ladder move to eye height, use legs
- duck under ladder, holding rails, push ladder vertical.
- secure ladder with knee against building, pull out base
- pull halyard
- roll ladder into position
Chapter 22 Ladders p268
Rule of thumb for ladder climbing angle
- Stand on lowest rung put arms straight out in front, if they touch
- A quarter of the working length, from base of structure. So 24’ extension ladder set to 20 feet so five feet away from building. (two guesses = bad method)
Chapter 22 Ladders p268
What is the proper climbing angle?
70 degrees
Chapter 22 Ladders p268
When footing ladders where is it recommended to stand?
stand outside the ladder (at ladder base), facing building and the ladder. Use Boxer’s Stance place one foot on the bottom rung and hands on beam of the ladder
Chapter 22 Ladders p270
How does the author recommend climbing the ladder?
Carry tools?
feet slightly out to either side of the rungs, keep hands on beams…bad weather feet further out to outside and deeper in rungs.
Tools carried, hook one on rungs ahead, other stay in hand in beam slide up with hand. Leave one hand free.
