Industrial Maintenance Technician Practice Test 2025 - Free Maintenance Technician Practice Questions and Study Guide

Question: 1 / 400

What is the best type of fire extinguisher to use for a grease fire?

Water

ABC powder

The most effective choice for a grease fire is an extinguisher marked as ABC powder. Class B fires, which include flammable liquids like grease, require specific extinguishing agents that do not react with the burning material. ABC powder contains dry chemicals that smother flames and disrupt the chemical reaction fueling the fire without causing additional hazards, such as splattering, which can occur with water.

While CO2 can be used on grease fires, it may not be as effective for larger fires or those that reignite easily. Baking soda can help suppress small kitchen grease fires but is not classified as a fire extinguisher and may not be sufficient for a larger fire. Water should be avoided because throwing water onto a grease fire can cause the burning grease to splatter and spread the flames instead of extinguishing them.

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CO2

Baking Soda

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