Question 1

Which of the following describes radiation, which is one kind of heat transfer process during the combustion phase of wildfire?

Accepted Answer

A)  Transmission of heat through molecular contact 
B)  Heat transfer though electromagnetic waves 
C)  Heat transfer by the movement of heated gases driven by temperature differences in air 
D)  Heat transfer by endothermic chemical reactions 
E)  Heat transfer by splitting large fuel molecules into smaller ones 
A)  Transmission of heat through molecular contact 
B)  Heat transfer though electromagnetic waves 
C)  Heat transfer by the movement of heated gases driven by temperature differences in air 
D)  Heat transfer by endothermic chemical reactions 
E)  Heat transfer by splitting large fuel molecules into smaller ones B

Question 2

Requiring fire insurance is the single best strategy to reduce damage from wildfire.

Accepted Answer

A) True 
 B)False  False

Question 3

For the past century, wildfire suppression in the U.S. has been remarkably successful in suppressing damage from wildfire.

Accepted Answer

A) True 
 B)False  False

Question 4

Large wildfires create their own clouds and release smoke, soot, and invisible gases that contribute to air pollution.

Accepted Answer

A) True 
 B)False

Question 5

Because wildfires occur above ground, they have little impact on soil.

Accepted Answer

A) True 
 B)False

Question 6

The presence of mountains has a very strong influence on wildfire activity in an area.

Accepted Answer

A) True 
 B)False

Question 7

Which of the following best describes what happens during the preignition process in wildfire development?

Accepted Answer

A)  Fuel is heated, it loses water and is ready to be ignited. 
B)  Fuel at the front of a fire is ignited. 
C)  Fuel gains carbon dioxide and is ready to burn. 
D)  Gases heat and expand into fuel. 
E)  Gases cool and contract to produce fuel. 
A)  Fuel is heated, it loses water and is ready to be ignited. 
B)  Fuel at the front of a fire is ignited. 
C)  Fuel gains carbon dioxide and is ready to burn. 
D)  Gases heat and expand into fuel. 
E)  Gases cool and contract to produce fuel.

Question 8

Which of the following is NOT an example of how wildfires are beneficial to the environment?

Accepted Answer

A)  May trigger a release of seeds for some species 
B)  Remove surface debris for grasses 
C)  Recycle nutrients in the ecosystem 
D)  Increase the amount of plants that can grow 
E)  Fires create deeper river channels that reduce flooding hazards. 
A)  May trigger a release of seeds for some species 
B)  Remove surface debris for grasses 
C)  Recycle nutrients in the ecosystem 
D)  Increase the amount of plants that can grow 
E)  Fires create deeper river channels that reduce flooding hazards.

Question 9

Weather, especially temperature, precipitation, relative humidity, and wind, has a dominant influence on wildfire.

Accepted Answer

A) True 
 B)False

Question 10

Little can be done in the area of public education about wildfire due to the technical nature of that information.

Accepted Answer

A) True 
 B)False

Question 11

If you have a wildfire coming, but you don't see big flames, what are you probably looking at?

Accepted Answer

A)  Flaming combustion 
B)  Smoldering combustion 
C)  Pyrolosis combustion 
D)  Cool combustion 
E)  Internal combustion 
A)  Flaming combustion 
B)  Smoldering combustion 
C)  Pyrolosis combustion 
D)  Cool combustion 
E)  Internal combustion

Question 12

Only people can prevent wildfires.

Accepted Answer

A) True 
 B)False

Question 13

Alaska and the Pacific Northwest have a low incidence of wildfires because it is too wet and too cold there.

Accepted Answer

A) True 
 B)False

Question 14

Which of the following describes convection, which is one kind of heat transfer process during the combustion phase of wildfire?

Accepted Answer

A)  Transmission of heat through molecular contact 
B)  Heat transfer though electromagnetic waves 
C)  Heat transfer by the movement of heated gases driven by temperature differences in air 
D)  Heat transfer by endothermic chemical reactions 
E)  Heat transfer by splitting large fuel molecules into smaller ones 
A)  Transmission of heat through molecular contact 
B)  Heat transfer though electromagnetic waves 
C)  Heat transfer by the movement of heated gases driven by temperature differences in air 
D)  Heat transfer by endothermic chemical reactions 
E)  Heat transfer by splitting large fuel molecules into smaller ones

Question 15

Which of the following statements is FALSE about wildfires?

Accepted Answer

A)  Before humans evolved, fires that were ignited by lightning or volcanic eruptions would burn until they ran out of fuel or were extinguished naturally. 
B)  Wildfires date back more than 350 million years when trees evolved and spread across the globe. 
C)  Some species of trees have seed cones that open only after a fire. 
D)  Early European settlers of North America brought the ability to use fire for heat, light, and cooking to Native Americans. 
E)  Wildfires became more frequent and grew quicker about 20 million years ago when grasses evolved. 
A)  Before humans evolved, fires that were ignited by lightning or volcanic eruptions would burn until they ran out of fuel or were extinguished naturally. 
B)  Wildfires date back more than 350 million years when trees evolved and spread across the globe. 
C)  Some species of trees have seed cones that open only after a fire. 
D)  Early European settlers of North America brought the ability to use fire for heat, light, and cooking to Native Americans. 
E)  Wildfires became more frequent and grew quicker about 20 million years ago when grasses evolved.

Question 16

Which of the following is NOT an effect of wildfires?

Accepted Answer

A)  Increased landslide activity 
B)  Increased earthquake activity 
C)  Increased smog 
D)  Decreased water quality 
E)  Destroyed animal habitats 
A)  Increased landslide activity 
B)  Increased earthquake activity 
C)  Increased smog 
D)  Decreased water quality 
E)  Destroyed animal habitats

Question 17

What is the role of radiation in keeping a wildfire burning?

Accepted Answer

A)  Radiation from flames decreases the heat of the fire, leading to extinction. 
B)  Radiation from the Sun adds heat to the fire, causing it to burn more quickly. 
C)  Radiation from flames pre-heats fuel ahead of the fire, causing the fire to move forward. 
D)  Radiation from the Earth heats fire, causing it to burn more quickly. 
E)  Radiation from flames causes disease in trees and wildlife near the fire zone. 
A)  Radiation from flames decreases the heat of the fire, leading to extinction. 
B)  Radiation from the Sun adds heat to the fire, causing it to burn more quickly. 
C)  Radiation from flames pre-heats fuel ahead of the fire, causing the fire to move forward. 
D)  Radiation from the Earth heats fire, causing it to burn more quickly. 
E)  Radiation from flames causes disease in trees and wildlife near the fire zone.

Question 18

Wildfires are a phenomenon caused only by human interaction.

Accepted Answer

A) True 
 B)False

Question 19

Even large crown fires are relatively easy to extinguish because those fires only burn the very uppermost parts of trees.

Accepted Answer

A) True 
 B)False

Question 20

Explain what happens to fuel during the preignition phase.

Accepted Answer

In the first phase, preignition, fuel is

Which of the following describes radiation, which is one kind of heat transfer process during the combustion phase of wildfire?

Requiring fire insurance is the single best strategy to reduce damage from wildfire.

For the past century, wildfire suppression in the U.S. has been remarkably successful in suppressing damage from wildfire.

Large wildfires create their own clouds and release smoke, soot, and invisible gases that contribute to air pollution.

Because wildfires occur above ground, they have little impact on soil.

The presence of mountains has a very strong influence on wildfire activity in an area.

Which of the following best describes what happens during the preignition process in wildfire development?

Which of the following is NOT an example of how wildfires are beneficial to the environment?

Weather, especially temperature, precipitation, relative humidity, and wind, has a dominant influence on wildfire.

Little can be done in the area of public education about wildfire due to the technical nature of that information.

If you have a wildfire coming, but you don't see big flames, what are you probably looking at?

Only people can prevent wildfires.

Alaska and the Pacific Northwest have a low incidence of wildfires because it is too wet and too cold there.

Which of the following describes convection, which is one kind of heat transfer process during the combustion phase of wildfire?

Which of the following statements is FALSE about wildfires?

Which of the following is NOT an effect of wildfires?

What is the role of radiation in keeping a wildfire burning?

Wildfires are a phenomenon caused only by human interaction.

Even large crown fires are relatively easy to extinguish because those fires only burn the very uppermost parts of trees.

Explain what happens to fuel during the preignition phase.

Introduction to Natural Hazards

Internal Structure of the Earth and Plate Tectonics

Earthquakes

Tsunamis

Volcanoes

Flooding

Mass Wasting

Subsidence and Soils

Atmosphere and Severe Weather

Hurricanes and Extratropical Cyclones

Coastal Hazards

Climate and Climate Change

Impacts and Extinctions

Filters

Exam 13: Wildfires

Which of the following describes radiation, which is one kind of heat transfer process during the combustion phase of wildfire?

Requiring fire insurance is the single best strategy to reduce damage from wildfire.

For the past century, wildfire suppression in the U.S. has been remarkably successful in suppressing damage from wildfire.

Large wildfires create their own clouds and release smoke, soot, and invisible gases that contribute to air pollution.

Because wildfires occur above ground, they have little impact on soil.

The presence of mountains has a very strong influence on wildfire activity in an area.

Which of the following best describes what happens during the preignition process in wildfire development?

Which of the following is NOT an example of how wildfires are beneficial to the environment?

Weather, especially temperature, precipitation, relative humidity, and wind, has a dominant influence on wildfire.

Little can be done in the area of public education about wildfire due to the technical nature of that information.

If you have a wildfire coming, but you don't see big flames, what are you probably looking at?

Only people can prevent wildfires.

Alaska and the Pacific Northwest have a low incidence of wildfires because it is too wet and too cold there.

Which of the following describes convection, which is one kind of heat transfer process during the combustion phase of wildfire?

Which of the following statements is FALSE about wildfires?

Which of the following is NOT an effect of wildfires?

What is the role of radiation in keeping a wildfire burning?

Wildfires are a phenomenon caused only by human interaction.

Even large crown fires are relatively easy to extinguish because those fires only burn the very uppermost parts of trees.

Explain what happens to fuel during the preignition phase.

Introduction to Natural Hazards

Internal Structure of the Earth and Plate Tectonics

Earthquakes

Tsunamis

Volcanoes

Flooding

Mass Wasting

Subsidence and Soils

Atmosphere and Severe Weather

Hurricanes and Extratropical Cyclones

Coastal Hazards

Climate and Climate Change

Impacts and Extinctions

Filters