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Fire Protection and Safety Flashcards

7 cards from real CDCP 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 Protection and Safety flashcards as text

  1. Which fire suppression agent is classified as a clean agent and leaves no residue, making it ideal for protecting sensitive data centre equipment?

    Answer: FM-200 (HFC-227ea)

    FM-200 (HFC-227ea) is a clean agent that suppresses fire without leaving residue, making it safe for electronic equipment.

  2. What is the primary purpose of a pre-action fire suppression system in a data centre?

    Answer: To require two separate events before water is released, preventing accidental discharge

    Pre-action systems require two independent triggering events (e.g., smoke detection plus heat detection) before releasing water, preventing accidental discharge onto equipment.

  3. Under NFPA 75, what is the maximum allowable fire compartment size for IT equipment rooms protected by automatic sprinklers?

    Answer: 52,000 square feet

    NFPA 75 allows IT equipment rooms up to 52,000 square feet when protected by automatic sprinkler systems.

  4. A data centre experiences a fire alarm activation. Staff verify it is a real fire in a raised-floor void. Which action should be taken FIRST?

    Answer: Evacuate personnel and activate the suppression system per the emergency plan

    Immediate evacuation and activating suppression per the emergency response plan is the correct first action during a confirmed fire event.

  5. What fire detection technology is most effective at detecting slow, smoldering fires in early stages within a data centre?

    Answer: Very Early Smoke Detection Apparatus (VESDA)

    VESDA (Very Early Smoke Detection Apparatus) uses aspirating sampling to detect extremely low concentrations of smoke, identifying smoldering fires long before conventional detectors.

  6. In a data centre, which cable type significantly increases fire risk due to its halogenated materials releasing toxic gases when burned?

    Answer: PVC-jacketed cables

    PVC-jacketed cables release toxic halogenated gases (HCl) when burned, increasing danger to personnel and equipment during a fire.

  7. What is a 'holddown' or 'abort' switch in the context of a gaseous fire suppression system?

    Answer: A switch that prevents automatic suppression discharge during the pre-discharge delay period

    An abort switch allows personnel to temporarily delay an automatic suppression discharge during the pre-discharge countdown to prevent accidental release.