Pump Ops Chap 20 Flashcards
(25 cards)
How far should the aerial ladder tip extend above the roofline during rescue operations?
At least 6 feet (2 m)
Where should the platform floor be positioned when performing a roof rescue?
Just above and over the edge of the roof
How should the aerial be positioned when approaching a victim for rescue?
Aim above the victim, then lower to prevent jumping or sudden movements
What should the first rung of the aerial ladder align with during a window rescue?
Even with the windowsill
At what angle should a master stream enter a window during a blitz attack for ceiling deflection?
Approximately 30 degrees
How much weight does 250 gpm of water add to a structure?
2,000 pounds
What guideline should be used for master stream operation from a ladder pipe?
75° elevation, 80% extension, 80 psi nozzle pressure
Why should a ladder be placed at the corner of a building for rescue?
To reach two sides and reduce collapse hazard
What is the recommended aerial device position for roof ventilation?
Unburned side, close to the ventilation area
Why must fly sections extend 6 feet over the roof edge during ventilation?
To remain visible in smoke and ensure a clear escape route
When rescuing from a parapet roof, what must be used if parapet is unsafe?
Rest roof ladder against platform or aerial tip instead of parapet
What is the risk of victims jumping into an aerial platform?
Severe dynamic load may cause catastrophic failure
How should rope systems be rigged when using an aerial ladder for rescue?
Avoid bouncing, swaying, or jerking; manufacturer-approved only
How much force is applied to an aerial if a rope system is anchored to the ground?
Double the actual load
When lowering a Stokes basket via ladder, how should it be guided?
With ropes and at least two firefighters using the rails or perpendicular placement
Why are fog streams less effective at high altitudes?
They are disrupted by wind and may evaporate before reaching the fire
When using elevated master streams, what danger must be avoided if crews are inside?
Disruption of thermal layers, steam generation, and structural collapse
How should water be applied to protect exposures from radiant heat?
Directly onto the surface, not into the air
What positioning should be avoided to prevent turning the apparatus into an exposure?
Avoid positions without an escape route or too close to fire path
Why should wide sweeping nozzle movements be used cautiously?
To avoid exceeding manufacturer’s rotation limits and breaking windows
What minimum structural features should aerial rope rescue systems comply with?
NFPA® 1983 and NFPA® 1670 standards
Why should nozzle and valve movements be slow during elevated stream operations?
To avoid shock loading and structural stress
What should be done if aerial stream alters fire ventilation conditions?
Coordinate with Incident Command to adjust tactics
What is the major safety risk when operating aerials in swiftwater rescues?
Lateral force and instability leading to entrapment or collapse
