Ch 5 Ground Ladders Flashcards
ground ladders may be needed for any or all of the following:
- Gaining access to the outside of a burning building
- Reaching lockboxes to facilitate rapid and nondestructive entry
- Reaching windows to facilitate entry, horizontal ventilation, or rescues
- Accessing the roofs of some structures for vertical ventilation
To be fully functional when needed, fire service ground ladders must?
be properly maintained and tested regularly.
To ensure that ladders are safe to use when needed, firefighters must follow the maintenance procedures recommended by?
the ladder manufacturer, as prescribed in departmental SOPs, and as specified in NFPA® 1932, Standard on Use, Maintenance, and Service Testing of In-Service Fire Department Ground Ladders.
Selecting and using ground ladders in a safe, timely, and effective manner is an integral part of a coordinated attack on a structure fire, what is the order?
the longest ground ladder on scene should be deployed first, then the next longest, etc
Prior to selecting and positioning ground ladders, a number of factors should be considered. The most critical factors are:
- Primary objective (rescue, window, or roof access)
- Fire size and location
- Current and expected fire behavior
What is the ideal climbing angle for ground ladders ?
75 degrees from horizontal
A lower climbing angle also increases ?
the potential for the ladder spurs to slide away from the building when positioned on concrete or other hard surfaces
the keys to safe and effective ladder handling are
fitness, technique, and practice
the staypoles also provide
lateral stability
The perpendicular technique is preferred because?
it eliminates the need for a 90-degree pivot of the ladder that is required when it is raised parallel to a building.
Minimum number of FF’s required to raise pole ladder
A minimum of four firefighters are required to raise a pole ladder, but adding a fifth or sixth firefighter to the team increases both safety and efficiency.
Ladders positioned for rescue should be placed?
Ladders positioned for rescue should be placed mid-line with the window and slightly below the sill.
Ladders positioned for ventilation should be placed?
Ladders positioned for ventilation should be placed on the windward side of the window.
Ladder placement guidelines
Ladder at least two points on different sides of a building for roof access/egress.
• Avoidplacingladdersoverdoororwindowopeningswhere they may be exposed to flames or excessive heat.
• Placeladdersatbuildingstrongpoints(suchasthecorners) when possible.
If a ladder is to be used for positioning a firefighter to break a window for ventilation?
If a ladder is to be used for positioning a firefighter to break a window for ventilation, it should be placed alongside the window to the windward (upwind) side. The tip should be even with the upper portion of the window.