26 - Truck Book #3 Flashcards
(340 cards)
NFPA 1901 recommends the standards for fire department apparatus and states that the minimum total ladder length to be carried on aerial apparatus is.
115 Ft
NFPA guidelines state that if ladders are marked they should only be marked at the.
top 18 inches
How often should ladders be tested?
Tested annually, inspected and cleaned monthly
NFPA requires heat sensor indicators on all ladders manufactured after.
1984
Where should heat sensors be located on a ladder?
below the second rung and at the halfway point
At what temperature do the ladder heat sensor indicators change color?
300 degrees F
What percent load capacity can an aluminum ladder lose when exposed to heat?
25%
Most of the portable ladder
complements carried on truck companies have a maximum reach between.
35-45 ft
How many firefighters can
effectively carry a 35-foot or greater extension ladder, hand tools, and a roof ladder to the
objective, deploy the ladders, and not be fatigued for the next task.
Two
Based upon these factors the priority order for placement of portable ladders on the fireground should be.
- Fire floor.
- Floor above the fire.
- Adjacent compartments and roof if needed.
When selecting ladders estimate how many feet per floor for residential? How many feet per floor in commercial?
9, 12
The typical run of residential stairs
is how many feet?
13
Common applications for ladders: 14’/16’ Straight/Roof.
2nd floor residential windows
Common applications for ladders: 16’/20’ Straight/Roof.
2nd floor commercial windows/1 story roof
Common applications for ladders: 20’ Straight/Roof
2 story residential roof
Common applications for ladders: 24’ extension
2 story residential roof
3rd floor residential windows
Common applications for ladders: 28’ extension
2 story commercial roof
3rd floor residential windows
Common applications for ladders: 35’ extension
3rd floor commercial windows
3 story residential & commercial roof
4th floor residential windows
Common applications for ladders: 40’ extension
3rd or 4th floor commercial windows
3 story roofs
Common applications for ladders: Aerial
Below grade and any target higher than 4th floor
windows depending upon access and obstructions.
Which of these is not a use for a portable ladder?
In place of scaffolding
What is the minimum total ladder length carried on aerial apparatus as per NFPA 1901?
115 feet
What is the only NFPA requirement pretaining to marking portable ladders?
Only mark the top 18 inches
How often should ladders be tested?
Annually