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32 Cards in this Set
- Front
- Back
Beam |
Main structural member of the ladder supporting the rungs or rung blocks |
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Bed section |
Lowest and widest section of the ladder, always remains in contact with the ground or other support surface |
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Butt |
Bottom end of the ladder; the end that is placed on the ground or support surface |
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Butt spurs |
Metal plates, spikes or cleats attached to the butt that prevent slippage |
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Fly section |
Upper sections of extension ladder or some combination ladders. The section that moves |
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Footpads |
Swivel plates attached to the butt of the ladder; usually have rubber or neoprene bottom surfaces |
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Guides |
Wood or metal strips on an extension ladder that guide the fly |
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Halyard |
Rope or cable used for hoisting and lowering the fly sections of an extension ladder; also called the fly rope |
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Heat sensor label |
Label affixed to the inside of each beam of each ladder section: changes color when exposed to a sufficient degree of heat. When exposed it must be put out of service until it can be tested and replaced. |
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Hooks |
Curved metal devices installed near the top end of the roof ladders to secure the ladder to the highest point on a peaked roof of a building |
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Pawls |
Devices attached to the inside of the beams on the fly sections used to hold the fly section in place after it has been extended |
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Protection plates |
Strips of metal attached to the ladders at chaffing points |
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Pulley |
Small, grooved wheel through which the halyard is drawn on an extension ladder |
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Rails |
The two lengthwise members of a trussed ladder beam that are separated by truss or separation blocks. |
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Rungs |
Cross members that provide the foothold for climbing; the rungs extend from one beam to another |
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Stops |
Wooden or metal pieces that prevent the fly section from being extended too far |
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Tie rods |
Metal rods located beneath the rungs extending from one beam to the other of a wooden ladder |
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Tip |
Extreme top of the ladder |
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Truss block |
Spacers set between the rails of a trussed ladder; sometimes used to support rungs |
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Ladder type: Single wall ladder |
6-32 ft tall Common length of 12-20 ft |
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Roof ladders |
12-24 ft and have hooks at the tip to hook into the peak of a roof. Used when completing vertical ventilation |
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Folding ladders |
Footpads attached to the butts 8-16 ft 10 ft most common height Most commonly used as attic ladders |
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Extension ladders |
Made up of 2-4 sections (1 bed and remainder are flies) 12-39 ft Commonly handled by 3 people at a time |
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Pole ladder (Bangor ladders) |
All ladders 40 ft or more must have poles Pole ladders do not exceed 50 ft Poles are also known as tormentors |
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Combination ladders |
Used as an A frame, extension ladder or folding ladder 8-14 ft Must have positive locking devices in order to hold the ladder in position |
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Pompier ladders (scaling ladders) |
Single beam with rungs projecting from both sides Used to climb from floor to floor 10-16 ft |
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What's involved in ladder care? |
1) Do not expose ladders to elements 2) keep free of moisture 3) do not store where subjected to exhaust or engine heat 4) do not paint except for 12" from tip of beams on top or bottom for identification |
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Each pumper (engine) must carry... |
1) a 10 ft folding ladder 2) a 14 ft roof ladder 3) a 24 ft extension ladder |
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Positioning: Roof access |
Must be placed 5 rungs above roofs edge |
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Positioning: Window ventilation |
Upwind side of window with tip even with the top of the window frame |
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Positioning: Window access |
Tip must be placed below the window sill |
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Reach is not the same as length. What rules are kept in mind with this? |
1) for lengths of 35 ft or less, reach is 1 ft less than length 2) for lengths of 35 ft or more, reach is 2 ft less than length |