Question 1

In which of the following regions are wildfires LEAST likely to begin?

Accepted Answer

A)   Grasslands
B)   Woodlands
C)   Marshes
D)   Rainforests
E)   Sand dunes with no vegetationF) A) and B)
G) B) and E)

Question 2

Which type of wildfire would you most likely see moving through a dry swamp during a drought?

Accepted Answer

A)   Ground fires
B)   Surface fires
C)   Crown fires
D)   Tree fires
E)   Drought firesF) A) and E)
G) A) and D)

Question 3

Some of the heat in a fire is transferred by radiation.

Accepted Answer

A) True 
 B)False

Question 4

Large wildfires that occur regularly in a location every 50 to 100 years will not become established unless sufficient fuel is present.

Accepted Answer

A) True 
 B)False

Question 5

Florida is the only U.S. state that has never experienced wildfire.

Accepted Answer

A) True 
 B)False

Question 6

Which of the following is NOT released during wildfire?

Accepted Answer

A)   Heat
B)   Water vapor
C)   Oxygen
D)   Carbon dioxide
E)   LightF) D) and E)
G) A) and C)

Question 7

What is the role of convection in wildfires?

Accepted Answer

A)   Rising hot air in the fire pulls in fresh air to fuel the flames.
B)   Rising hot air in the fire pulls in fresh air to extinguish the flames.
C)   Sinking hot air in the fire pushes air out the fire to extinguish the flames.
D)   Sinking hot air in the fire pushes air out of the fire to fuel the flames.
E)   Rising and falling air within the fire causes the fire to reuse air as fuel.F) B) and C)
G) A) and E)

Question 8

Prescribed burns to reduce the fuel load have been extremely successful in stopping large wildfires in southern California.

Accepted Answer

A) True 
 B)False

Question 9

Ignition by a lightning strike will always lead to a wildfire.

Accepted Answer

A) True 
 B)False

Question 10

Flaming combustion usually involves higher temperatures than smoldering combustion.

Accepted Answer

A) True 
 B)False

Question 11

Which of the following best describes what happens during the combustion phase of wildfires?

Accepted Answer

A)   Fuel is heated and ready to be ignited.
B)   Fuel is ignited, leading to flames and smoldering.
C)   Fuel explodes causing the wildfires to extinguish.
D)   Fire reaches a source of water where it reacts strongly.E) All of the above
F) None of the above

Question 12

Describe some of the positive effects of wildfires.

Accepted Answer

Fires tend to leave an accumulation of c...

Question 13

Which of the following statements about wildfire combustion is TRUE?

Accepted Answer

A)   Wildfires ignite repeatedly in order to keep moving.
B)   All lightning strikes, if they have enough energy, will cause a wildfire to ignite.
C)   Human activity is the only thing that can ignite a wildfire.
D)   Combustion involves the absorption of energy in a fire.E) B) and C)
F) C) and D)

Question 14

How does topography influence a wildfire?

Accepted Answer

Topography can have a profound effect on...

Question 15

Most animals are able to escape from the actual flames of a wildfire, but are harmed by destruction to their habitats.

Accepted Answer

A) True 
 B)False

Question 16

Which of the following is NOT required for a fire to burn?

Accepted Answer

A)   Heat
B)   Fuel
C)   Oxygen
D)   Carbon dioxideE) C) and D)
F) A) and B)

Question 17

Fires will occur whether or not people start them, and humans play a relatively minor role in affecting large wildfires.

Accepted Answer

A) True 
 B)False

Question 18

Which North American regions are most vulnerable to wildfire? Why does the risk shift from year to year?

Accepted Answer

Large wildfires, however, are most commo...

Question 19

What is the difference between preheating and pyrolysis?

Accepted Answer

A)   Preheating is caused by added heat, pyrolysis is caused by added chemicals.
B)   Preheating is a natural process, pyrolysis is man-made.
C)   Preheating involves drying of the fuel, pyrolosis involves a chemical change in the fuel.
D)   Only preheating is necessary for a wildfire.
E)   Preheating changes the fuel, pyrolosis changes the products in a fire.F) C) and E)
G) A) and D)

Question 20

Wildfires are mostly caused by people and can be prevented through more education.

Accepted Answer

A) True 
 B)False

Exam 13: Wildfires

How does topography influence a wildfire?

Correct AnswerverifiedTopography can have a profound effect on...View AnswerShow Answer

Flaming combustion usually involves higher temperatures than smoldering combustion.

Correct AnswerverifiedShow Answer

In which of the following regions are wildfires LEAST likely to begin?

Correct AnswerverifiedShow Answer

Ignition by a lightning strike will always lead to a wildfire.

Correct AnswerverifiedShow Answer

Wildfires are mostly caused by people and can be prevented through more education.

Correct AnswerverifiedShow Answer

Large wildfires that occur regularly in a location every 50 to 100 years will not become established unless sufficient fuel is present.

Correct AnswerverifiedShow Answer

Some of the heat in a fire is transferred by radiation.

Correct AnswerverifiedShow Answer

What is the difference between preheating and pyrolysis?

Correct AnswerverifiedShow Answer

What is the role of convection in wildfires?

Correct AnswerverifiedShow Answer

Prescribed burns to reduce the fuel load have been extremely successful in stopping large wildfires in southern California.

Correct AnswerverifiedShow Answer

Florida is the only U.S. state that has never experienced wildfire.

Correct AnswerverifiedShow Answer

Describe some of the positive effects of wildfires.

Correct AnswerverifiedFires tend to leave an accumulation of c...View AnswerShow Answer

Which type of wildfire would you most likely see moving through a dry swamp during a drought?

Correct AnswerverifiedShow Answer

Which of the following best describes what happens during the combustion phase of wildfires?

Correct AnswerverifiedShow Answer

Which of the following is NOT required for a fire to burn?

Correct AnswerverifiedShow Answer

Fires will occur whether or not people start them, and humans play a relatively minor role in affecting large wildfires.

Correct AnswerverifiedShow Answer

Which North American regions are most vulnerable to wildfire? Why does the risk shift from year to year?

Correct AnswerverifiedLarge wildfires, however, are most commo...View AnswerShow Answer

Which of the following is NOT released during wildfire?

Correct AnswerverifiedShow Answer

Which of the following statements about wildfire combustion is TRUE?

Correct AnswerverifiedShow Answer

Most animals are able to escape from the actual flames of a wildfire, but are harmed by destruction to their habitats.

Correct AnswerverifiedShow Answer

Correct Answer
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Topography can have a profound effect on...
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Fires tend to leave an accumulation of c...
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Large wildfires, however, are most commo...
View Answer

Correct Answer
verified

Correct Answer
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Correct Answer
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