Understanding Fire Types and Extinguishers

What are the main classes of fire?

• Category X, Y, Z

• Class E, F, G

• Type 1, 2, 3

• Class A, B, C, D, K

Which type of fire extinguisher is suitable for electrical fires?

• Class D fire extinguisher

• Class B fire extinguisher

• Class A fire extinguisher

• Class C fire extinguisher

What is the primary agent used in a Class A fire extinguisher?

• Carbon Dioxide

• Dry Chemical

• Water

• Foam

How does a foam extinguisher work on flammable liquid fires?

• A foam extinguisher smothers flammable liquid fires by creating a blanket of foam that cools the fire and cuts off the oxygen supply.

• It creates a chemical reaction that ignites the fire further.

• It uses water to extinguish the fire by cooling it down.

• It releases a gas that suffocates the fire.

What type of fire is a Class B fire extinguisher designed for?

• Flammable liquids such as gasoline, oil, and grease.

• Ordinary combustibles such as wood and paper.

• Electrical fires caused by faulty wiring.

• Combustible metals like magnesium and sodium.

What is the difference between a dry chemical and a wet chemical extinguisher?

• Wet chemical extinguishers are only effective on electrical fires.

• Dry chemical extinguishers use water to extinguish fires.

• Dry chemical extinguishers use powder to smother fires, while wet chemical extinguishers use a solution to cool and suppress flames, particularly for cooking oil fires.

• Dry chemical extinguishers are designed for use in residential settings only.

Which fire extinguisher should be used for cooking oil fires?

• Water fire extinguisher

• Class B fire extinguisher

• Class K fire extinguisher

• Class A fire extinguisher

What does the acronym PASS stand for in fire extinguisher usage?

• Pull, Aim, Shake, Sweep

• Push, Aim, Squeeze, Spray

• Pull, Aim, Squeeze, Sweep

• Pull, Aim, Squeeze, Stand

What is the purpose of a fire blanket?

• To serve as a decorative item in kitchens.

• To provide warmth in cold conditions.

• To extinguish small fires by smothering them.

• To act as a fire alarm system.

How often should fire extinguishers be inspected?

• Weekly for visual checks and quarterly for professional inspections.

• Only when used or after a fire incident.

• Monthly for visual checks and annually for professional inspections.

• Every six months for visual checks and biannually for professional inspections.