S-290 Final Exam A.pdf S-290 Final Exam A.pdf S-290 Final Exam A.pdf
S-290 Final Exam A
Study online at https://quizlet.com/_ehfliy
1. T/F Topography can directly and indirectly af- True
fect fuels and their availability for combus-
tion?
2. Of the three primary environmental factors Topography
that influence fire behavior, which is the least
variable?
3. The least critical form of heat transfer that Conduction
influences rate of spread in a running wild
land fire is:
4. The point to which a combustible material Ignition temperature
must be heated to produce self sustaining
combustion is known as the:
5. Fireline intensity is dependent upon: All of the above
6. T/F Two requirements for long-range spotting True
are wind and a well developed convection col-
umn:
7. A fire that advances through canopies of Crown fire
brush and trees is known as a:
8. Fire is burning in litter on top of the ground, Surface fire with torching
but occasionally carries into crowns of indi- and spotting
vidual trees, which produces buying embers
that start new fires outside the fire perimeter:
9. Fire begins burning into the crowns and Crown fire with convection
spreads through the canopy. There is a sud- column and firewhirls
den increase in fireline intensity where the fire
controls it's environment. At one point flames
can be seen carried high into the convection
column with a whirling motion.
10. Fire is consuming the organic materials be- Ground fire with smolder-
neath the surface of the ground after the main ing and flare ups
fie has passed through and is spreading on
1/9
S-290 Final Exam A.pdf S-290 Final Exam A.pdf S-290 Final Exam A.pdf
, S-290 Final Exam A.pdf S-290 Final Exam A.pdf S-290 Final Exam A.pdf
S-290 Final Exam A
Study online at https://quizlet.com/_ehfliy
the surface without flames. Occasionally the
fire will ignite areas of unburned fuels on the
surface and short fire runs take place.
11. T/F Upward movie air contracts and warms: False
12. As air sinks, it: Increases in pressure,
warms and compresses
13. T/F On average the RH doubles with each 20F True
decrease of temperature, or halves with each
20F increase of temperature.
14. T/F The lowest RH occurs with the highest True
temperature.
15. T/F RH is usually lower on north aspects. False
16. T/F Cloudiness has little affect on RH and False
temperature.
17. T/F the type of vegetation has little affect on False
temperature and RH.
18. T/F RH measures the amount of moisture in False
the air.
19. S/U Clouds form in layers. Stable
20. S/U Gusty winds Unstable
21. S/U Smoke column spreads out after limited Stable
rise.
22. S/U Clouds grow vertically. Unstable
23. S/U Firebrands lifted into convection column. Unstable
24. T/F Temperature decreases with an increase False
in elevation when an inversion is present.
2/9
S-290 Final Exam A.pdf S-290 Final Exam A.pdf S-290 Final Exam A.pdf
S-290 Final Exam A
Study online at https://quizlet.com/_ehfliy
1. T/F Topography can directly and indirectly af- True
fect fuels and their availability for combus-
tion?
2. Of the three primary environmental factors Topography
that influence fire behavior, which is the least
variable?
3. The least critical form of heat transfer that Conduction
influences rate of spread in a running wild
land fire is:
4. The point to which a combustible material Ignition temperature
must be heated to produce self sustaining
combustion is known as the:
5. Fireline intensity is dependent upon: All of the above
6. T/F Two requirements for long-range spotting True
are wind and a well developed convection col-
umn:
7. A fire that advances through canopies of Crown fire
brush and trees is known as a:
8. Fire is burning in litter on top of the ground, Surface fire with torching
but occasionally carries into crowns of indi- and spotting
vidual trees, which produces buying embers
that start new fires outside the fire perimeter:
9. Fire begins burning into the crowns and Crown fire with convection
spreads through the canopy. There is a sud- column and firewhirls
den increase in fireline intensity where the fire
controls it's environment. At one point flames
can be seen carried high into the convection
column with a whirling motion.
10. Fire is consuming the organic materials be- Ground fire with smolder-
neath the surface of the ground after the main ing and flare ups
fie has passed through and is spreading on
1/9
S-290 Final Exam A.pdf S-290 Final Exam A.pdf S-290 Final Exam A.pdf
, S-290 Final Exam A.pdf S-290 Final Exam A.pdf S-290 Final Exam A.pdf
S-290 Final Exam A
Study online at https://quizlet.com/_ehfliy
the surface without flames. Occasionally the
fire will ignite areas of unburned fuels on the
surface and short fire runs take place.
11. T/F Upward movie air contracts and warms: False
12. As air sinks, it: Increases in pressure,
warms and compresses
13. T/F On average the RH doubles with each 20F True
decrease of temperature, or halves with each
20F increase of temperature.
14. T/F The lowest RH occurs with the highest True
temperature.
15. T/F RH is usually lower on north aspects. False
16. T/F Cloudiness has little affect on RH and False
temperature.
17. T/F the type of vegetation has little affect on False
temperature and RH.
18. T/F RH measures the amount of moisture in False
the air.
19. S/U Clouds form in layers. Stable
20. S/U Gusty winds Unstable
21. S/U Smoke column spreads out after limited Stable
rise.
22. S/U Clouds grow vertically. Unstable
23. S/U Firebrands lifted into convection column. Unstable
24. T/F Temperature decreases with an increase False
in elevation when an inversion is present.
2/9
S-290 Final Exam A.pdf S-290 Final Exam A.pdf S-290 Final Exam A.pdf
