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Fire Extinguisher Use and Classification Flashcards

7 cards from real F-02 practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 Fire Extinguisher Use and Classification flashcards as text
  1. Which class of fire involves ordinary combustibles such as wood, paper, cloth, and trash?

    Answer: Class A

    Class A fires involve ordinary combustibles like wood, paper, cloth, and plastics, which are the most common fire type in assembly occupancies.

  2. What class of fire extinguisher is required for use on energized electrical equipment?

    Answer: Class C

    Class C extinguishers use non-conductive agents (such as CO2 or dry chemical) safe for use on energized electrical fires without risk of electrocution.

  3. What does the acronym PASS stand for when operating a portable fire extinguisher?

    Answer: Pull, Aim, Squeeze, Sweep

    PASS stands for Pull the pin, Aim at the base of the fire, Squeeze the handle, and Sweep side to side — the correct procedure for using any portable extinguisher.

  4. Class K fire extinguishers are specifically designed to combat fires involving which materials?

    Answer: Cooking oils and animal fats

    Class K extinguishers use wet chemical agents designed for high-temperature cooking oil and animal fat fires typically found in commercial kitchens.

  5. Which type of fire extinguisher agent is most effective for Class B fires involving flammable liquids such as gasoline?

    Answer: CO2 or dry chemical

    CO2 and dry chemical extinguishers are rated for Class B fires because they smother or interrupt the chemical chain reaction without spreading the burning liquid.

  6. A fireguard notices a fire extinguisher has a label marked 'ABC.' What does this mean?

    Answer: It is effective on Class A, B, and C fires

    An ABC rating indicates the extinguisher (typically multi-purpose dry chemical) is approved for ordinary combustibles, flammable liquids, and electrical fires.

  7. Which extinguisher type should NEVER be used on a Class D fire involving combustible metals such as magnesium?

    Answer: Both water and standard dry chemical

    Water reacts violently with burning metals, and standard dry chemical can intensify some metal fires; only specialized Class D dry powder extinguishers are safe for combustible metal fires.