- 2079 Jestha · 4 marks
Short note: Fire extinguisher
Short answer
A fire extinguisher is a portable steel cylinder that discharges an agent to put out small fires early. Use the correct agent for the fire class (water for Class A, CO2/dry powder for electrical, etc.) and operate by the PASS method: Pull pin, Aim at base, Squeeze handle, Sweep side to side.
Write a short note on fire extinguisher.
A fire extinguisher is a portable device that discharges an agent (water, foam, gas or powder) to put out small fires in the early stage. It is a steel cylinder with a safety pin, handle, nozzle/hose and pressure gauge.
Classes of fire and suitable extinguishers
| Class | Fuel | Extinguisher |
|---|---|---|
| A | Wood, paper, cloth | Water, foam, dry powder |
| B | Flammable liquids, oil | Foam, CO2, dry powder |
| C | Gases | Dry powder, CO2 |
| D | Metals | Special dry powder |
| Electrical | Live equipment | CO2, dry powder (never water) |
| F/K | Cooking oils | Wet chemical |
Operation (PASS): Pull the pin, Aim at the base of the fire, Squeeze the handle, Sweep side to side.
Placement: near exits and corridors, about 1 m above the floor, one for about every 200-250 m^2 of floor area, easy to see and reach, with color codes (red body; water red, foam cream, CO2 black, dry powder blue). Inspect regularly and refill after use.
✓ Answer checked by Claude Opus 5.5 (high effort)
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