S-190 Study Guide Questions with 100% Correct Answers

S-190 Study Guide Questions with 100%
Correct Answers
how many feet are in a chain

66 feet

point of origin

The location where the fire started

heel

The location where the fire started

head

most rapidly spreading portion of the fire's perimeter

flanks

part of the perimeter that are roughly parallel to the main direction of spread

finger

extensions projection form the main body

pocket

unburned indentations formed by the fingers

island

unburned area within the perimeter

spots

fire ignited outside the perimeter

, contained vs controlled

contained < controlled, contained still needs mopup and is still hot

smoldering

fire burning without presence of flame

creeping

low flame and slowly spreading

running

spreading rapidly, well defined head

torching

foliage of single tree or small group from top to bottom

flare-up

short term sudden acceleration in the rate of spread or intensification

fire whirl

spinning upward vortex of fire

backing

slower rates of fire and lower intensity, typically moving into the wind and/or down slope

flaming front

zone of a moving fire where the combustion is primarily flaming

crowning

horizontal flames above the top of trees or shrubs