S-130 Mop-Up Operations 3

Question 1

What does the term 'scratch line' mean in relation to mop-up in S-130?

Accepted Answer

A temporary control line quickly constructed to slow fire spread

Answer

A scratch line is a quickly constructed, minimal control line built to halt or slow fire spread, which is later improved and widened during mop-up and line construction.

Question 2

What is the safest position for a firefighter when felling a hazardous snag during mop-up?

Accepted Answer

At a 45-degree angle to the planned fall direction and at a safe distance

Answer

Standing at a 45-degree angle to the fall direction and at a safe distance protects the firefighter from the falling snag, butt kick, and debris scatter.

Question 3

During mop-up, a firefighter notices smoke rising from a previously treated area uphill. What is the most likely cause?

Accepted Answer

A sleeper fire traveling through roots or duff from an untreated hotspot

Answer

Smoke appearing from a treated area is a strong indicator of a sleeper fire traveling through subsurface organic material or root channels from an incompletely extinguished hotspot.

Question 4

How does water conservation best practice apply to mop-up when water supply is limited?

Accepted Answer

Use small amounts of water mixed thoroughly into soil rather than flooding the surface

Answer

Mixing small amounts of water thoroughly into soil maximizes the cooling effect and conserves water by ensuring moisture contacts smoldering material rather than running off.

Question 5

What standard mop-up distance from the control line is typically specified in the Incident Action Plan?

Accepted Answer

100 feet

Answer

While the Incident Commander specifies the exact distance, 100 feet from the control line is a commonly used standard mop-up distance in many Incident Action Plans.

(S-130) Wildland Firefighting Training Certification Practice Test

(S-130) Wildland Firefighting Training Certification Practice Test

S-130 Mop-Up Operations 3