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Portable Fire Extinguishers Flashcards

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

Read the first 7 Portable Fire Extinguishers flashcards as text

  1. According to NFPA 10, which fire class designation applies to fires involving ordinary combustibles such as wood, paper, cloth, and plastics?

    Answer: Class A

    Class A fires involve ordinary combustibles such as wood, paper, cloth, rubber, and many plastics.

  2. Which type of portable fire extinguisher agent is specifically required for Class K fires involving cooking oils and fats in commercial cooking equipment?

    Answer: Wet chemical

    Wet chemical agents saponify cooking oils and fats to suppress the fire and prevent re-ignition, making them the required agent for Class K fires.

  3. According to NFPA 10, what is the maximum travel distance to a Class A portable fire extinguisher in a light hazard occupancy?

    Answer: 75 feet

    NFPA 10 Table 6.2.1.1 specifies a maximum travel distance of 75 feet to a Class A extinguisher in light hazard occupancies.

  4. What does the numerical component of an extinguisher's alphanumeric rating (e.g., the '2' in 2-A) indicate?

    Answer: Relative firefighting capacity compared to a reference test fire

    The number in an extinguisher rating indicates relative firefighting capacity; a 2-A extinguisher has twice the fire-extinguishing capability of a 1-A extinguisher.

  5. Which portable fire extinguisher agent leaves virtually no residue after discharge, making it suitable for protecting sensitive electronic equipment?

    Answer: Carbon dioxide (CO2)

    Carbon dioxide extinguishes fire by oxygen displacement and leaves no residue, making it ideal for protecting sensitive electronics and archival materials.

  6. According to NFPA 10, how frequently must portable fire extinguishers receive a maintenance examination (thorough inspection)?

    Answer: At least annually

    NFPA 10 Section 7.3 requires that portable fire extinguishers undergo a thorough maintenance examination at least once per year.

  7. According to NFPA 10, what is the minimum extinguisher rating required for a Class B portable fire extinguisher in a light hazard occupancy with a maximum travel distance of 50 feet?

    Answer: 10-B

    NFPA 10 Table 6.3.1.1 requires a minimum 10-B rating for Class B protection in light hazard occupancies at a 50-foot maximum travel distance.