Question 1

Which of the following types of mass movement often travels as a coherent mass down a curved surface?

Accepted Answer

A) slump 
B) creep 
C) rock slide 
D) mudflow 
A) slump 
B) creep 
C) rock slide 
D) mudflow A

Question 2

Why would Florida,which receives plentiful rainfall and remains humid for a large portion of the year,be less susceptible to landslides than the California desert?

Accepted Answer

Florida is very flat and therefore less susceptible to landslides;the California desert contains many mountainous regions and thus has a higher landslide potential.

Question 3

Which of the following types of mass movement is LEAST coherent (most like a fluid)?

Accepted Answer

A) slump 
B) creep 
C) rock slide 
D) mudflow 
A) slump 
B) creep 
C) rock slide 
D) mudflow D

Question 4

After finishing a new construction project,why is the first task often to install new landscaping around the area?

Accepted Answer

A) The plants will provide nutrients for animals that will carry away the soil. 
B) The roots will grow into the slope and work to keep the slope intact. 
C) The plants will add additional weight to the slope and keep it stable. 
D) The roots take in oxygen and release it into the soil to increase surface tension. 
A) The plants will provide nutrients for animals that will carry away the soil. 
B) The roots will grow into the slope and work to keep the slope intact. 
C) The plants will add additional weight to the slope and keep it stable. 
D) The roots take in oxygen and release it into the soil to increase surface tension.

Question 5

How can you use a landslide hazard map to help buy a piece of property?

Accepted Answer

A) to determine if there are large rivers running by the property 
B) to determine if the property is in a high-risk zone for landslides 
C) to determine if the property is near a high-risk flood zone 
D) to determine if the property has been exposed to fires recently 
A) to determine if there are large rivers running by the property 
B) to determine if the property is in a high-risk zone for landslides 
C) to determine if the property is near a high-risk flood zone 
D) to determine if the property has been exposed to fires recently

Question 6

Which of the following types of mass movement takes place most gradually?

Accepted Answer

A) slump 
B) creep 
C) rock slide 
D) mudflow 
A) slump 
B) creep 
C) rock slide 
D) mudflow

Question 7

The principal difference between a debris flow and a debris slide is ________.

Accepted Answer

A) the shape of the path taken by the moving mass 
B) the grain size of the moving mass 
C) that a debris flow contains abundant water,whereas a debris slide is dry 
D) that a debris flow contains pyroclastic debris from a volcanic eruption 
A) the shape of the path taken by the moving mass 
B) the grain size of the moving mass 
C) that a debris flow contains abundant water,whereas a debris slide is dry 
D) that a debris flow contains pyroclastic debris from a volcanic eruption

Question 8

Landslides are more likely to occur in ________ regions.

Accepted Answer

A) arid 
B) tropical 
C) parched 
D) desiccated 
A) arid 
B) tropical 
C) parched 
D) desiccated

Question 9

Which of the following would decrease the resistance force?

Accepted Answer

A) lowering the slope angle 
B) adding a small amount of water 
C) chemical weathering of the slope 
D) adding material to the base of the hill 
A) lowering the slope angle 
B) adding a small amount of water 
C) chemical weathering of the slope 
D) adding material to the base of the hill

Question 10

Which of the following situations is the most likely candidate for the occurrence of mass movements?

Accepted Answer

A) a flat,desert area with little vegetation 
B) a gentle slope along the coastline that is across a highway from the surf zone 
C) gently sloping hills in the tropics 
D) a mountain terrain in a humid environment 
A) a flat,desert area with little vegetation 
B) a gentle slope along the coastline that is across a highway from the surf zone 
C) gently sloping hills in the tropics 
D) a mountain terrain in a humid environment

Question 11

Which area would be most likely to host a slope failure?

Accepted Answer

A) the coast of Florida 
B) a desert in California 
C) mesas in Arizona 
D) the coast of California 
A) the coast of Florida 
B) a desert in California 
C) mesas in Arizona 
D) the coast of California

Question 12

The image below shows a cut bank along a river that was formed by a ________.

Accepted Answer

A) lahar 
B) rock fall 
C) slump 
D) debris slide 
A) lahar 
B) rock fall 
C) slump 
D) debris slide

Question 13

The most important factor in determining if an area will be subject to mass movement is ________.

Accepted Answer

A) relief 
B) gravity 
C) weather 
D) water content 
A) relief 
B) gravity 
C) weather 
D) water content

Question 14

Which of the following increases the risk of mass movement?

Accepted Answer

A) adding a small amount of moisture to loose,dry sediment 
B) waves breaking before they reach sea cliffs 
C) flooding the sediment with water to the point of saturation 
D) reducing the grade of the slope 
A) adding a small amount of moisture to loose,dry sediment 
B) waves breaking before they reach sea cliffs 
C) flooding the sediment with water to the point of saturation 
D) reducing the grade of the slope

Question 15

Which of the following would NOT be a failure trigger?

Accepted Answer

A) shaking from earthquakes 
B) undercutting a slope 
C) large amounts of time 
D) adding some water to a slope 
A) shaking from earthquakes 
B) undercutting a slope 
C) large amounts of time 
D) adding some water to a slope

Question 16

In the figure below,what would be the most effective way to stabilize the slope,assuming that the slope is in a dry,desert environment?

Accepted Answer

A) regrade the slope 
B) move the road 
C) add more vegetation 
D) install riprap 
A) regrade the slope 
B) move the road 
C) add more vegetation 
D) install riprap

Question 17

Well-rounded sand has a smaller ________ than irregularly shaped gravel.

Accepted Answer

A) cohesion 
B) angle of repose 
C) mineral stability 
D) cross-sectional area 
A) cohesion 
B) angle of repose 
C) mineral stability 
D) cross-sectional area

Question 18

Slumps typically arrive ________ at the bottom of a slope.

Accepted Answer

A) vertically stacked 
B) intact 
C) flattened 
D) jumbled 
A) vertically stacked 
B) intact 
C) flattened 
D) jumbled

Question 19

The principal difference between a debris flow and a mudflow is ________.

Accepted Answer

A) the shape of the path taken by the moving mass 
B) the grain size of the moving mass 
C) that a debris flow contains abundant water,whereas a mudflow is dry 
D) that a debris flow contains pyroclastic debris from a volcanic eruption 
A) the shape of the path taken by the moving mass 
B) the grain size of the moving mass 
C) that a debris flow contains abundant water,whereas a mudflow is dry 
D) that a debris flow contains pyroclastic debris from a volcanic eruption

Question 20

What type of mass movement is an area that shows bowed out tree trunks and misaligned fences?

Accepted Answer

A) rock fall 
B) mudflow 
C) creep 
D) debris slide 
A) rock fall 
B) mudflow 
C) creep 
D) debris slide

Exam 13: Unsafe Ground: Landslides and Other Mass Movements

Which of the following types of mass movement often travels as a coherent mass down a curved surface?

Why would Florida,which receives plentiful rainfall and remains humid for a large portion of the year,be less susceptible to landslides than the California desert?

Which of the following types of mass movement is LEAST coherent (most like a fluid)?

After finishing a new construction project,why is the first task often to install new landscaping around the area?

How can you use a landslide hazard map to help buy a piece of property?

Which of the following types of mass movement takes place most gradually?

The principal difference between a debris flow and a debris slide is ________.

Landslides are more likely to occur in ________ regions.

Which of the following would decrease the resistance force?

Which of the following situations is the most likely candidate for the occurrence of mass movements?

Which area would be most likely to host a slope failure?

The image below shows a cut bank along a river that was formed by a ________.

The most important factor in determining if an area will be subject to mass movement is ________.

Which of the following increases the risk of mass movement?

Which of the following would NOT be a failure trigger?

In the figure below,what would be the most effective way to stabilize the slope,assuming that the slope is in a dry,desert environment?

Well-rounded sand has a smaller ________ than irregularly shaped gravel.

Slumps typically arrive ________ at the bottom of a slope.

The principal difference between a debris flow and a mudflow is ________.

What type of mass movement is an area that shows bowed out tree trunks and misaligned fences?

The Earth in Context

The Way the Earth Works: Plate Tectonics

Patterns in Nature: Minerals

Up From the Inferno: Magma and Igneous Rocks

The Wrath of Vulcan: Volcanic Eruptions

Pages of Earth S Past: Sedimentary Rocks

Metamorphism: A Process of Change

A Violent Pulse: Earthquakes

Crags, cracks, and Crumples: Crustal Deformation and Mountain Building

Deep Time: How Old Is Old

A Biography of Earth

Riches in Rock: Energy and Mineral Resources

Streams and Floods: The Geology of Running Water

Restless Realm: Oceans and Coasts

A Hidden Reserve: Groundwater

Dry Regions: The Geology of Deserts

Amazing Ice: Glaciers and Ice Ages

Global Change in the Earth System

Interlude A: Rock Groups

Interlude B: A Surface Veneer: Sediments and Soils

Interlude C: The Rock Cycle

Interlude D: The Earth S Interior Revisited: Insights From Geophysics

Interlude E: Memories of Past Life: Fossils and Evolution

Interlude F: An Introduction to Landscapes and the Hydrologic Cycle

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