Truck Book 3 Ladders Flashcards
define bridging
1
Using a ladder to spend distances resembling a bridge by two buildings are trenches
what is the primary purpose of a portable ladder
3
Access and egress for firefighters
NFPA 1901 recommends fire department apparatus have a minimum total ladder length on aerials of how many feet
3
115’
The only NFPA requirement pertaining to marking portable letters is what
3
ladders shall only be marked at the top 18 inches
ladders should be tested how often
4
annually
ladders should be inspected and cleaned how often
4
Monthly or after every use
where should heat sensor labels be located on ladders
4
below the second rung from the top and at the halfway point
at what temperature will the heat sensor labels change color
4
300 degrees
How much load capacity in terms of percentage can aluminum ladder lose if exposed to high heat
4
25%
laddering of a building is dependent on what three factors
7
Type of building
occupancy of building
location extend a fire
what is the priority order for placement of portable ladders on the fire ground
7
fire floor
floor above the fire adjacent compartments and roof if needed
In order to select the most appropriate portable ladder for the task estimate ——- feet per floor residential occupancies and ——— feet per floor in commercial occupancies
9’ residential
12’ commercial
14/16’ Strait roof ladder can reach what
8
Second-floor residential window
16/20’ strait roof ladder can reach What
8
Second floor commercial window first story residential roof
20’ strait/roof ladder can reach what
8
Second story residential roof
24’ extension ladder can reach what
8
Second story residential roof
third floor residential window
28’ extension ladder can reach what
8
2nd story commercial roof
3rd floor residential window
35’ extension ladder can reach what
8
3rd floor commercial window
3rd story residential/commercial roof
4th floor residential window
When throwing a ladder to a balcony how many rungs at a minimum should be above the railing
10
2
when making a rescue from a window with the tower bucket ideally where should the platform be positioned in relationship to the window
18
Base of the platform is level with the window ledge occupant can be moved into the open platform door
when using a tower bucket to perform a rescue from a window of a occupant who is obese or incapacitated where should the platform be lowered in relationship to the window
18
The platform can be lowered to wear the top rail is level with the ledge or sill
if Ariel encounters an electrical powerline what should the operator do
19
use hydraulic controls to move aerial ladder away from wires
stay on the turn table but warm all others to stay at least 30 feet away minimum safe distance
notify incident commander that vehicle may be energized
turntable placement is a responsibility of who
20
Ariel driver
if the apparatus is to use an elevated master stream and there’s a potential for collapse where should a position
20
Outside of collapse zone. 1 1/2 times the structure’s height and/or on an outside corner
which nozzle is best when flowing from elevated master streams
21
smooth board with an appropriate solid stream has the best penetration ability to reach the seat of the fire
what are the three main uses for elevated master stream operations
21
Extinguishment
exposure protection
flying standpipe
Which type of nozzle pattern for aerial master streams is ideal for attic fires
22
Narrow fog or strait stream
Which type of Ariel master stream nozzle pattern as ideal for exposure protection
22
Fog stream
which type of nozzle pattern for an Ariel Master stream is ideal for warehouses and commercial building structures
22
Smoothbore
if an elevated master stream is prepared to flow onto the fire but has not received water yet, what should the operator not do
22
Rotate Ariel into attack position exposing it to potential fire damage
when an aerial is utilizing a Smoothbore tip, unless otherwise directed, which size tip should you be using
23
Largest tip available
In general in order to receive maximum benefit of AnyStream inside a structure the stream should be directed where
23
Upward at a 30° angle through window or opening
if large vol of fires on several floors where should the aerial master stream attack first
23
Start attack on lowest floor and move up
If a large volume of fire spreading horizontally where should an aerial master stream began its attack
23
At the point of progress and spread walking back towards point of origin
which type of nozzle is best to aim upward through lower windows into an attic fire
24
Smoothbore to penetrate and bounce off ceiling creating broken particles
True or false the tactic of creating a water shower between the fire and exposure has proven not to be as affective as saturating the exposure building
24
true
The most advantageous method for using the aerial device to achieve a flying standpipe is to do what
25
Use the ladder for access stretching the hose off the ladder securing the hose with a rope or hose to bring up Ariel for other duties
For hasty egress or victim rescue the top rail of an Ariel’s tower bucket should be level with what
26
Windowsill
Elevated master stream operations can prevent auto exposure over ——vertical feet depending on wind conditions and placement of truck companies
27
100’
