In S-190, what three components make up the 'fire environment triangle' that drives wildland fire behavior?
S 190 Fire Behavior
Question · Easy
Which fuel moisture timelag class includes fine fuels such as grass and pine needles less than 1/4 inch in diameter?
How does slope affect rate of spread on a wildland fire, all other factors equal?
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Which combination is the classic 'alignment of forces' that produces extreme fire behavior?
Question · Medium
What is the primary difference between dead fuel moisture and live fuel moisture?
Which aspect typically receives the most solar heating and tends to have the driest fuels in the Northern Hemisphere?
A box canyon or chute presents what specific hazard to fireline personnel?
Which weather factor is the single best short-term indicator of fine fuel moisture and ignition probability?
Which atmospheric stability condition tends to support more extreme fire behavior?
Which is an example of a topographic feature that often produces erratic wind shifts on the fireline?
Spotting in wildland fire refers to:
What is a 'crown fire'?
At what general fuel moisture threshold for fine dead fuels does ignition probability climb sharply, all else equal?
Question · Hard
Which of the following best describes a 'thermal belt'?
Diurnal wind patterns in mountainous terrain typically produce:
A foehn wind (such as a Santa Ana, Chinook, or East wind event) is characterized by:
Which is the BEST indicator that a thunderstorm cell may produce dangerous downdrafts on your fire?
Why are mid-slope positions on a brush- or grass-covered slope considered hazardous engagement points?
Cured grass at 100% cured supports fire spread differently than green grass because:
Which of the following is the strongest topographic predictor of where a fire will run hardest tomorrow?
What is the typical relationship between temperature and relative humidity over a 24-hour summer day on a fire?
Which sequence correctly orders surface fire intensity from lowest to highest?
Which S-130 hand tool is primarily designed to scrape down to mineral soil in fireline construction?
S 130 Firefighter Training
What is the primary purpose of the Pulaski tool in fireline construction?
What is the recommended minimum spacing between sawyer/swamper teams when bucking on the fireline?
What is direct attack on a wildland fire?
During hot, dry, windy conditions with active fire behavior, which engagement strategy is generally safer?
What is the purpose of an 'anchor point' in fireline construction?
In progressive hose lay, what is the role of the nozzle person versus the trombone/swamper?
During mop-up, what does 'cold trailing' mean?
Which crew formation is commonly used during progressive line construction with hand tools?
What is the primary purpose of scouting the fire before engagement?
A snag on the fireline is best described as:
What is a 'burnout' operation?
On the fireline, what does 'in the black' mean?
Personal Protective Equipment (PPE) for wildland firefighters typically includes which of the following?
How wide should a handline generally be in light grass fuels?
Which of the following best describes a 'safety zone' as taught in S-130?
What is an 'escape route' in LCES?
In hot, brushy, steep terrain with a flame length of about 8 feet, the safety zone separation distance should be:
What is a 'trigger point' in fireline tactics?
During engine operations on the wildland fireline, which is a critical pre-engagement check?
On a hose lay using 1.5-inch hose, the most efficient pattern in a progressive direct attack typically involves:
After a shift, what is the standard expectation for tool care before securing for the night?
The first of the 10 Standard Firefighting Orders is:
Nwcg Safety
Which of the following is one of the 18 Watch Out Situations?
What does the acronym LCES stand for?
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