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53 Cards in this Set
- Front
- Back
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what are truss blocks on a ladder used for?
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spacers set between the rails of a trussed ladder, somestimes used to support rungs (it ties to rails together)
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roof ladder used for?
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single ladders with folding hooks that anchor ladder over the ridge of a picthed roof
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material metal ladders made of?
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aluminum alloy (aluminum 6061-t6)
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2 pieces of extension ladder
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bed and fly section
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2 sides of ladder called?
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beams
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pole ladders poles are called?
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tormentor poles, bangor poles, or stay poles used to stabilize a 40 ft ladder or longer they are attached to top of bed section of ladder
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can a halyard have a cable on it?
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yes can be combo cable and rope or just cable
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how do we know if a ladder has been exposed to excessive heat?
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heat sensor will change color (from orange to black)
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can a roof ladder be used as a work platform on a pitched roof?
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yes
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folding ladder used where?
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(also called attic ladder)
-often used for interior access, allows access in narrow passageways to attic scuttleholes and small rooms and closets |
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what type of rungs does a folding ladder have?
what weight is it rated at? |
folding rungs
-300 lb weight rating |
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what length of folding ladder is required
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10 ft or longer (normally 10 ft)
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dogs on the ladder do what?
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devices attached to inside of the beams on fly sections used to hold the fly section in place after it has been extended
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a frame ladder is what?
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a combination ladder, can be used as self supporting ladder, a single, or an extension ladder
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most notable thing about an extension ladder is?
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it is extendable
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at above what height must ladders become poled?
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40 ft
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when should ladders be cleaned and inspected
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after each use
-and on a monthly basis |
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where are the staypoles located on a poled ladder?
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on the upper section of the bed
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what does the dogs on a ladder latch around?
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the rungs
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what is attached to a truss block?
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the rungs
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look at length of ladder chart and handout
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look at handout!!!
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who is in charge when two or more firefighters carrying the ladder?
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the person closest to the butt, when two are at the butt it is the firefighter on the right side of the butt (note this ff is on left side of ladder when they are facing the tip)
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ladder atleast how many different point of building when venting?
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two diff points on diff sides of building
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carry most ladders how?
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butt forward with the front angled down
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how do we lift ladder?
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bend your knees, keep back as straight as possible and lift with legs, NOT WITH BACK OR ARMS
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how many people are needed to carry a 50 ft ladder?
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6
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when we are carrying ladders and come to a flat narrow passage we must do what?
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a flat overhead carry, because of narrow space
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what does heeling a ladder mean?
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securing the butt
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at what angle does the person on the tormentor pole assume the weight?
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45 degree angle
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where do we ventilate a window?
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place it alongside the window with the tip even with the top of the window and on the upwind side
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where wood we do a beam raise?
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hard to reach access
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where would we ladder building
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opposite corners at the corner (about 8 ft off corner ideally)
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climbing the ladder look where?
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staright ahead, glancing up towards the top every once and a while
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what is proper climbing angle?
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75 degrees
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how man firefighters on a 35 ft ladder?
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typically ladders of 35 ft or longer should be raised by three firefighters or more
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what is primary reason for tying off ladder?
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prevents ladder from slipping or pulling away from building
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where do you hook when using ladder belt?
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attaches it to center of a rung
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how to perform a leg lock in?
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lock in with leg on opposite side of the side you are going to work on
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when climbing the ladder always use what?
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rungs unless carrying something, then you use hand that is not carrying something to grab underneath beam.
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how do we determine placement of ladder?
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height of ladder (where it touche building) divided by 4. example 24 ft ladder place 6 ft back from building
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2 types of ladder const used in fire service?
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truss beam
solid beam |
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does the fire service use a carbon graphite composite ladder?
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no only wood, metal, and fiberglass
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ladder material and conduction
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aluminum good, wood poor, fiberglass very poor
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typical height of story for residential and commercial buildings
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residential 10 ft with 3 ft from floor to windowsill
-commercial 12 ft per floor, 4 ft from floor to windowsill |
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ladder window for rescue do you want extra rungs?
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if wide enough then yes two to three rungs above window sill, if not the ladder tip is place slightly below the window sill
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ladder placed how many rungs above roof?
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3 to 5 (5 is better)
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1 person carry extension ladder with what end first?
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butt
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do we do leg locks on aerial apparatus?
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no
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weights of diff ladders?
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24'= metal 71 lbs, wood 105, fiberglass 113
35' ladder= metal 163, wood 212, fiberglass 200 50' ladder= metal 250/ wood 298 |
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when should ladder commands be used?
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When more than 1 person on ladder
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fly direction for raising on ladders
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-all modern metal and fiberglass ladders are designed to be used fly out
-only type of wood ladder manufactured today is designed for ladder to be raised with the fly in |
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nfpa complaince pumpers must carry
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1 straight ladder equipped with hooks, 1 extension ladder, 1 attic ladder no designated lenghts
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nfpa compliance aerial app must carry
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1 10ft or longer attic ladder
-2 roof ladders atleast 16 ft long -1 combo ladder atleast 14 ft -1 24 ft ladder or longer extension 1 35 ft extension ladder |
