Private Patrol Operator Practice Test

Which type of fire extinguisher should be used on a liquid fire?

1. Type A

2. Type B

3. Type C

4. Type ABC

The correct answer is: Type B

The appropriate type of fire extinguisher for a liquid fire is Type B. Type B extinguishers are specifically designed to combat fires involving flammable liquids such as gasoline, oil, and grease. They work by smothering the fire or by interrupting the chemical reaction of the burning liquid. Type A extinguishers are effective against ordinary combustibles such as wood, paper, and cloth, which makes them unsuitable for liquid fires. Type C extinguishers are intended for electrical fires, and while they are safe to use around live electrical equipment, they are not effective for liquid fires. Type ABC extinguishers can handle multiple types of fires, including those involving ordinary combustibles, flammable liquids, and electrical equipment, but when specifically addressing a liquid fire, a Type B extinguisher is the most effective choice.