S-130 Mop-Up Operations

Question 1

What is the primary goal of mop-up operations in wildland firefighting?

Accepted Answer

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

Answer

Increase the speed of the fireline construction

Answer

Conduct reconnaissance for the next operational period

Answer

Remove all vegetation from the burned area

Question 2

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

Accepted Answer

Cold-trailing

Answer

Grid searching

Answer

Depth probing

Answer

Scratch lining

Question 3

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

Accepted Answer

Away from the firefighter and away from unburned fuel

Answer

Toward the firefighter to keep it in the burned area

Answer

Uphill to prevent rolling away

Answer

Parallel to the slope to keep it stationary

Question 4

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

Accepted Answer

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

Answer

It creates a slippery barrier that blocks fire spread

Answer

It marks areas that have been treated

Answer

It improves footing for firefighters on the fireline

Question 5

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

Accepted Answer

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

Answer

A firefighter taking a mandatory rest period on the fireline

Answer

A smoldering snag that falls overnight

Answer

An undetected spot fire beyond the control line

Question 6

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

Accepted Answer

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

Answer

All snags within 300 feet must be felled

Answer

All ash has been buried to a depth of 12 inches

Answer

Water has been applied to every square foot of the burned area

Question 7

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

Accepted Answer

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

Answer

They block radio communication on the fireline

Answer

They create shadows that hide hotspots from aerial observation

Answer

They absorb water intended for mop-up