ARFF Foundations
What is the primary objective of ARFF operations during an aircraft emergency?
To create survivable conditions for evacuation.
What class of fire involves flammable liquids like jet fuel?
Class B.
What is the main advantage of a roof turret?
Long reach and high flow rate
What aircraft component remains hot long after shutdown?
Engine exhaust or turbine sections.
What does Part 139.315 determine for an airport?
The ARFF Index based on aircraft size and daily departures.
Why is pre‑incident planning essential for ARFF crews?
It prepares responders for aircraft hazards, access points, and tactical needs.
What characteristic of foam allows it to suppress fuel vapors?
Its ability to form a vapor‑sealing blanket.
What is the purpose of a piercing nozzle on an HRET?
To penetrate aircraft skin and apply agent inside.
Why are lithium‑ion batteries a concern during incidents?
They can enter thermal runaway and reignite.
What does Part 139.317 require airports to provide
ARFF vehicles, extinguishing agents, and minimum equipment.
What type of training helps ARFF personnel perform under stress?
Realistic, scenario‑based training.
Why is cooling important during interior aircraft firefighting?
To prevent reignition and reduce heat exposure.
Why is pump‑and‑roll capability important?
It allows agent application while the vehicle moves.
What hazard occurs when hydraulic fluid leaks onto hot surfaces?
Rapid ignition and flame spread
What response time requirement is outlined in Part 139.319?
ARFF vehicles must reach the midpoint of the furthest runway within 3 minutes.
Why is familiarity with airport roadways important for ARFF response?
It ensures the fastest and safest route to the incident.
What is a key advantage of dry chemical agents?
They quickly interrupt the chemical chain reaction.
What tool is used when aircraft doors cannot be opened normally?
A forcible entry tool or pry bar.
Why must ARFF crews understand different aircraft door types?
...that's their job..dumbass Damarcus
What two factors determine an airport’s ARFF Index under Part 139.315?
Largest air carrier aircraft length and average daily departures.
What is the purpose of conducting post‑incident reviews?
To improve tactics, communication, and safety procedures.
Why must ARFF crews check for hidden fires after extinguishment?
Aircraft contain void spaces where fire can smolder
Why must ARFF crews regularly test vehicle agent systems?
To ensure proper flow, pressure, and reliability
What hazard can damaged oxygen systems create?
Accelerated fire growth due to enriched oxygen
What annual requirement does Part 139.319 place on ARFF personnel?
Demonstrating proficiency in firefighting, response, and operational skills