A commercial motor vehicle driver detects a small, contained fire and prepares to use the vehicle's portable dry chemical fire extinguisher. In what sequential order should the driver execute the standard PASS procedure to safely discharge the extinguisher and suppress the fire?
- 1Pull the safety pin located in the extinguisher handle to release the locking mechanism.
- 2Aim the nozzle or discharge hose low, directing it directly at the base of the fire.
- 3Squeeze the lever or handle slowly and evenly to release the extinguishing agent.
- 4Sweep the nozzle from side to side across the base of the fire until it is fully extinguished.
Answer
The proper sequence follows the standard PASS protocol: Pull the safety pin, Aim the nozzle low at the base of the fire, Squeeze the lever to discharge the agent, and Sweep side to side across the burning material.
The established standard protocol for operating portable fire extinguishers is the PASS acronym: Pull the pin, Aim at the base of the fire, Squeeze the operating handle, and Sweep side to side. Following this chronological sequence ensures the equipment is unlocked, targeted accurately at the fuel source, discharged under control, and dispersed across all active embers.
Step-by-Step Solution
Key Concept
PASS Fire Extinguisher Operating Technique
Estimated Time:45s