What sequence correctly represents the PASS technique used for operating a fire extinguisher?

• A. Pull the pin, Aim at the base of the fire, Squeeze the handle, Sweep the nozzle from side to side.
• B. Pull the pin, Aim at the base of the fire, Release the handle, Sweep.
• C. Pull the pin, Aim at the base of the fire, Squeeze the handle, Sweep.
• D. Pull the pin, Aim at the top of the fire, Squeeze the handle, Sweep.

Answer: (B)

PASS is the sequence used to operate a fire extinguisher: Pull the pin, Aim at the base of the fire, Squeeze the handle, Sweep the nozzle from side to side. The pin unlocks the extinguisher so it can discharge. Aiming at the base targets the fuel source rather than just the flames, which helps knock down the fire more effectively. Squeezing the handle releases the extinguishing agent; releasing the handle would stop the discharge, so the correct action is to squeeze, not release. Finally, sweeping the nozzle from side to side covers the area and helps prevent re-ignition. Aiming at the top or misplacing the action (like releasing instead of squeezing) would not follow the proper sequence and reduces effectiveness.