Final answer:
(b) 5-10 feet. The effective range of a Potassium Bicarbonate (PKP) portable extinguisher is 5-10 feet, allowing users to safely suppress Class B and C fires.
Step-by-step explanation:
The effective range of a Potassium Bicarbonate (PKP) portable extinguisher is 5-10 feet. Portable extinguishers with this chemical are known for fighting Class B and Class C fires, which involve flammable liquids and electrical equipment, respectively.
PKP is a dry chemical extinguishing agent that effectively interrupts the chemical chain reaction in a fire. The 5-10 feet range allows the user to safely discharge the agent towards the base of the fire, ensuring the fire is suppressed without getting too close to the flames.
It's important to stand at a safe distance to prevent harm from the fire itself or from the extinguishing agent.
The effective range of a Potassium Bicarbonate (PKP) portable extinguisher is (c) 10-15 feet. This type of extinguisher is commonly used for fires involving flammable liquids and electrical equipment.
Potassium bicarbonate works by releasing carbon dioxide gas, which helps to smother the fire and interrupt the chemical reaction that sustains it.