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Fire Prevention and Protection in Construction Flashcards

6 cards from real STSC practice questions. Tap to flip, then mark Knew It or Still Learning โ€” missed cards come back until you master them.

Read the first 6 Fire Prevention and Protection in Construction flashcards as text
  1. A fire watch must be maintained for at least how long after hot work operations are completed in a construction area containing combustibles?

    Answer: 30 minutes

    NFPA 51B and most construction fire safety programs require a fire watch for at least 30 minutes after hot work is completed.

  2. What is the maximum container size allowed for storing flammable liquids in a safety can on a construction site?

    Answer: 5 gallons

    OSHA 29 CFR 1926.152 allows flammable liquids to be stored in approved safety cans of up to 5 gallons.

  3. Which of the following best describes a 'Class I, Division 1' hazardous electrical location in relation to fire risk?

    Answer: An area where flammable gases or vapors are present under normal operating conditions

    Class I, Division 1 locations have flammable gases or vapors present under normal operating conditions, requiring explosion-proof electrical equipment.

  4. What type of fire extinguisher must NOT be used on electrical fires?

    Answer: Water-based extinguishers

    Water conducts electricity and using a water-based extinguisher on an energized electrical fire creates an electrocution hazard.

  5. The National Fire Protection Association (NFPA) standard that governs construction, alteration, and demolition operations regarding fire safety is:

    Answer: NFPA 241

    NFPA 241 is the Standard for Safeguarding Construction, Alteration, and Demolition Operations.

  6. Flammable liquid storage areas on construction sites must have which of the following to prevent fire spread?

    Answer: Containment dikes, proper ventilation, no ignition sources within 50 feet, and NO SMOKING signs

    Flammable liquid storage requires containment to prevent spill spread, ventilation to prevent vapor accumulation, and elimination of ignition sources.