Drill Manual - Ladders Flashcards
If subjected to this heat, even for a moment, the ladder can lose at least ___ of its load capacity
25%
Heat Sensors:
These labels will turn black if the ladder (or the portion of the ladder with the heat sensor) is subjected to a temperature greater than _______________?
300 degrees
How many heat sensors are required per section of the ladders?
four per section
If any heat sensor turns _______ the ladder should be removed from service and tested to determine it is safe before returning to service.
black
Ladder Weight Capacities? Ground ladders
Attic/ Pole
Wall and Roof
Extension
Attic/ Pole 300 lbs
Wall and Roof 750 lbs
Extension 750 lbs
Ladder Personnel Capacities:
0- 19 feet = 1 person
20-27 feet = 2 people
28- 39 feet = 3 people
40-49 feet = 4 people
According to NFPA
This standard requires that ladders be service tested
Annually
Anytime a ladder is suspected of being unsafe
After a ladder has been overloaded or subjected to impact loading
After direct heat exposure
After repair unless the repair was limited to halyard replacement
All ladders are subjected to a _____________ test to determine the overall strength of the ladder and its ability to recover from a load
horizontal bending
40 foot GEL:
Tie off the excess halyard by wrapping the halyard around _____ rungs and secure with a ______
2-3 rungs and half-hitch
GEL:
When possible secure the ladder at the upper contact point with a webbing or strap. This is traditionally done with a large _____ and ____________ around the beam of the ladder and another solid feature on the structure itself.
large clove hitch and over hand safety
Allow ________ rungs to extend above the roof line or parapet
four to six
What ladder will make a third story commercial roof typically?
40 foot
It should be noted that the 40’ ladder is a minimum ____ person evolution
four
Do not use a ___ wall ladder on a single story house� Too much ladder above the roof line can make the ladder unstable and top heavy.
20 foot wall ladder
the ladder should be extended _______ rungs above the parapet
six to eight
On large structures _______________should be laddered�
all four corners
If the ladder is to be placed at or near a window for ventilation, it should be placed ________________________________?
- to one side (the upwind side)
- two to three rungs above the window sill
When laddering a window for rescue or entry, always place the ladder ____________________?
just below or even with the window sill
If a parapet is over __ feet and it is necessary to place a ladder to access the roof, a ___ ladder should be placed for access on and off the roof.
5 feet
Roof ladder
When laddering fire escapes, the top of the ladder should extend a maximum of ________ above railings
one foot
Carrying the chain saw up a ladder with webbing (sling), can you have it running?
no, leave in the OFF position
What “crew” is the preferred method for raising a ladder?
Full crew
When personnel are available, the two person ladder carry is the preferred method for carrying ladders up to __ feet
28 feet
For ladders __ and larger, three and four person ladder carries may be utilized�
35’
