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Mop-Up Operations Flashcards

7 cards from real S-130 practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 Mop-Up Operations flashcards as text
  1. What is the primary goal of mop-up operations in wildland firefighting?

    Answer: Extinguish all heat and embers within a specified distance of the control line

    Mop-up ensures that all heat, embers, and burning material within a specified distance of the control line are fully extinguished to prevent re-ignition.

  2. What technique involves firefighters feeling the ground with the bare hand or fingers to detect hidden heat during mop-up?

    Answer: Cold-trailing

    Cold-trailing is the technique of using a bare hand or fingers close to — but not touching — the soil surface to detect residual heat that may not be visible.

  3. When rolling a smoldering log during mop-up, in which direction should it be rolled?

    Answer: Away from the firefighter and away from unburned fuel

    Rolling a smoldering log away from the firefighter and away from unburned fuel prevents injury from rolling embers and reduces the risk of igniting unburned material.

  4. Why is mixing soil with water an effective mop-up technique?

    Answer: It cools the soil faster and the mud retains moisture to prevent re-ignition

    Mixing soil and water creates a mud slurry that cools hotspots faster and maintains moisture in the soil, preventing re-ignition of smoldering material.

  5. What is a 'sleeper' in the context of wildland fire mop-up?

    Answer: A fire burning underground through roots, duff, or peat that re-surfaces after mop-up

    A sleeper is a subsurface fire that travels through root systems, duff, or organic soil and re-emerges after an area has been declared mopped up.

  6. What condition must be met before mop-up of an area is considered complete?

    Answer: No smoke, heat, or embers remain within the specified mop-up distance from the control line

    Mop-up is complete only when there is no detectable smoke, heat, or ember within the distance specified by the Incident Commander from the control line.

  7. Why are standing dead trees (snags) considered especially hazardous during mop-up operations?

    Answer: They may fall without warning due to burned root systems and weakened wood

    Snags can fall unpredictably because fire damages their root systems and structurally weakens the wood, making them a constant overhead hazard during mop-up.