Basic Ladders (BSM) Flashcards
(335 cards)
Stairways are ordinarily accessible, but sometimes they may be involved in fire or other hazards. Members must therefore need to ___
Provide their own means of ascent or descent to upper floors
Ladder uses
- Rescue
- Access
- Ventilation
- Fire streams
- Bracing
- Salvage
The principle use of fire service ladders
Rescue work
Windows may be vented from the ___ using ground ladders
Exterior
Fire service ladders are used to gain access to ___
Attics, upper floors, or to the roof of a structure as well as spaces that may be difficult to access otherwise
Fire streams can be operated directly off of ___ ladders
Properly supported
A small extension ladder that is carried on all ladder trucks and engine companies. Vary in length from 10 to 14 feet
Baby ladder
The main section of an extension ladder from which the fly is extended
Bed
The principle structural member of the ladder where the rungs are secured
Beam
Beams may be ___
Solid or trussed
The bottom end of the ladder opposite the tip
Butt
Used in multiple-fly extension ladders to extend fly sections in addition to the halyard
Cable
Used to anchor the end of the cable to the fly section
Cable anchor
The folding attic ladder has hinged rungs whereby the two beams can be folded together
Folding ladder
The mechanism that keeps the flys from retracting once they are properly set on the desired rung
Dogs
Dogs are also referred to as ___
Pawls or locks
Ladders with two or more section, and with the exception of the baby ladder, are extended with a halyard
Extension ladder
In Seattle, extension ladders vary in length from ___
10 to 45 feet
The extendable and retractable section or sections of an extension ladder
Fly
The metal strips on an extension ladder which guide the fly section or sections while being extended or retracted
Guides
The rope used to extend or retract the fly
Halyard
The device used to anchor the halyard line to the fly section
Halyard anchor
The curved metal hooks at the tip end of a roof ladder
Hooks
A metal hook and rope device used to secure the tip of a ladder to its objective to prevent tipping
Ladder anchor