Question 1

_________ of soil and regolith commonly flow gradually downhill in humid areas following heavy rain.

Accepted Answer

A)  Earthflows 
B)  Turbidity currents 
C)  Lahars 
D)  Glowing avalanches 
A)  Earthflows 
B)  Turbidity currents 
C)  Lahars 
D)  Glowing avalanches

Question 2

Consider a weathered rock or soil particle lying on a slope. How will the gravitational force pulling the particle downward along the land surface vary with the inclination of the slope?

Accepted Answer

A)  It will decrease as the slope angle is decreased. 
B)  It will increase as the slope angle is decreased. 
C)  It is not affected by the slope angle. 
D)  It will decrease as the slope angle is increased. 
A)  It will decrease as the slope angle is decreased. 
B)  It will increase as the slope angle is decreased. 
C)  It is not affected by the slope angle. 
D)  It will decrease as the slope angle is increased.

Question 3

Which of the following remedies are not used to stabilize rock faces along the Sea- to- Sky highway?

Accepted Answer

A)  sprayed cement 
B)  fluid injection 
C)  rock bolts 
D)  metal screens (mesh) 
A)  sprayed cement 
B)  fluid injection 
C)  rock bolts 
D)  metal screens (mesh)

Question 4

Which mass wasting process has the fastest rate of movement?

Accepted Answer

A)  earthflow 
B)  rockslide 
C)  solifluction 
D)  slump 
A)  earthflow 
B)  rockslide 
C)  solifluction 
D)  slump

Question 5

How do the strength and cohesion of clay- rich regolith or soil change with the addition of water?

Accepted Answer

A)  Water reduces the strength of clays but raises the cohesion of the soil. 
B)  Water lowers the strength and cohesion. 
C)  Water does not affect the cohesion but lowers the strength. 
D)  Water increases the strength and cohesion. 
A)  Water reduces the strength of clays but raises the cohesion of the soil. 
B)  Water lowers the strength and cohesion. 
C)  Water does not affect the cohesion but lowers the strength. 
D)  Water increases the strength and cohesion.

Question 6

A geologist wants to locate a horizontal coal bed on a soil- covered slope where soil creep is active. A distinctive sandstone bed underlies the coal bed. On the basis of weathered sandstone fragments in the soil, where is the coal bed?

Accepted Answer

A)  just below the lowest piece of sandstone seen in the soil 
B)  just below the highest piece of sandstone seen in the soil 
C)  just above the highest piece of sandstone seen in the soil 
D)  just above the lowest piece of sandstone seen in the soil 
A)  just below the lowest piece of sandstone seen in the soil 
B)  just below the highest piece of sandstone seen in the soil 
C)  just above the highest piece of sandstone seen in the soil 
D)  just above the lowest piece of sandstone seen in the soil

Question 7

Which rockslide killed 20 campers when debris dammed a river and buried the campground?

Accepted Answer

A)  Montana 1959 
B)  Quebec 2010 
C)  Alberta 1903 
D)  Missouri 1811 
A)  Montana 1959 
B)  Quebec 2010 
C)  Alberta 1903 
D)  Missouri 1811

Question 8

Which one of the following materials has the maximum, sustainable, slope angle, as determined by the angle of repose?

Accepted Answer

A)  unfractured granite 
B)  unsorted, crushed rock used for highway paving 
C)  moist, sandy soil with a clay- rich matrix 
D)  dry sand 
A)  unfractured granite 
B)  unsorted, crushed rock used for highway paving 
C)  moist, sandy soil with a clay- rich matrix 
D)  dry sand

Question 9

How do freezing, thawing, wetting, and drying contribute to soil creep?

Accepted Answer

A)  Gravity exerts a much stronger force when the soil is wet and thawed. 
B)  The soil becomes much weaker when dry and frozen. 
C)  The soil expands and contracts, lifting particles then lowering them a slight distance downslope. 
D)  Eventually these cause the soil and regolith to suddenly slide down the slope. 
A)  Gravity exerts a much stronger force when the soil is wet and thawed. 
B)  The soil becomes much weaker when dry and frozen. 
C)  The soil expands and contracts, lifting particles then lowering them a slight distance downslope. 
D)  Eventually these cause the soil and regolith to suddenly slide down the slope.

Question 10

Which statement best describes slumping, a mass wasting process?

Accepted Answer

A)  A mass of soil or regolith becomes saturated with water and suddenly flows downhill to the base of the slope. 
B)  The soil and regolith move downhill very slowly. 
C)  A block or blocks of unconsolidated regolith slide downhill along a curved slip surface. 
D)  Blocks of hard bedrock rapidly slide downhill along fracture surfaces. 
A)  A mass of soil or regolith becomes saturated with water and suddenly flows downhill to the base of the slope. 
B)  The soil and regolith move downhill very slowly. 
C)  A block or blocks of unconsolidated regolith slide downhill along a curved slip surface. 
D)  Blocks of hard bedrock rapidly slide downhill along fracture surfaces.

Question 11

How does water affect the internal cohesion of clay- bearing soils and regolith?

Accepted Answer

A)  The soil or regolith has no internal cohesion when wet or dry. 
B)  The soil or regolith has equal internal cohesion when wet or dry. 
C)  The soil or regolith has less internal cohesion when wet than when dry. 
D)  The soil or regolith has more internal cohesion when wet than when dry. 
A)  The soil or regolith has no internal cohesion when wet or dry. 
B)  The soil or regolith has equal internal cohesion when wet or dry. 
C)  The soil or regolith has less internal cohesion when wet than when dry. 
D)  The soil or regolith has more internal cohesion when wet than when dry.

_________ of soil and regolith commonly flow gradually downhill in humid areas following heavy rain.

Consider a weathered rock or soil particle lying on a slope. How will the gravitational force pulling the particle downward along the land surface vary with the inclination of the slope?

Which of the following remedies are not used to stabilize rock faces along the Sea- to- Sky highway?

Which mass wasting process has the fastest rate of movement?

How do the strength and cohesion of clay- rich regolith or soil change with the addition of water?

A geologist wants to locate a horizontal coal bed on a soil- covered slope where soil creep is active. A distinctive sandstone bed underlies the coal bed. On the basis of weathered sandstone fragments in the soil, where is the coal bed?

Which rockslide killed 20 campers when debris dammed a river and buried the campground?

Which one of the following materials has the maximum, sustainable, slope angle, as determined by the angle of repose?

How do freezing, thawing, wetting, and drying contribute to soil creep?

Which statement best describes slumping, a mass wasting process?

How does water affect the internal cohesion of clay- bearing soils and regolith?

An Introduction to Geology and Plate Tectonics

Minerals: the Building Blocks of Rocks

Igneous Rocks

Volcanoes and Volcanic Processes

Weathering and Soil

Metamorphism and Metamorphic Rocks

Geologic Time

Crustal Deformation

Earthquakes and Earths Interior

The Ocean Floor

Plate Tectonics: the Framework for Modern Geology

Mountain Building and Continental Frameworks

Mass Wasting: the Work of Gravity

Running Water

Groundwater

Glaciers and Glaciation

Deserts and Winds

Shorelines

Mineral and Energy Resources

Filters

Exam 6: Sedimentary Rocks

_________ of soil and regolith commonly flow gradually downhill in humid areas following heavy rain.

Consider a weathered rock or soil particle lying on a slope. How will the gravitational force pulling the particle downward along the land surface vary with the inclination of the slope?

Which of the following remedies are not used to stabilize rock faces along the Sea- to- Sky highway?

Which mass wasting process has the fastest rate of movement?

How do the strength and cohesion of clay- rich regolith or soil change with the addition of water?

A geologist wants to locate a horizontal coal bed on a soil- covered slope where soil creep is active. A distinctive sandstone bed underlies the coal bed. On the basis of weathered sandstone fragments in the soil, where is the coal bed?

Which rockslide killed 20 campers when debris dammed a river and buried the campground?

Which one of the following materials has the maximum, sustainable, slope angle, as determined by the angle of repose?

How do freezing, thawing, wetting, and drying contribute to soil creep?

Which statement best describes slumping, a mass wasting process?

How does water affect the internal cohesion of clay- bearing soils and regolith?

An Introduction to Geology and Plate Tectonics

Minerals: the Building Blocks of Rocks

Igneous Rocks

Volcanoes and Volcanic Processes

Weathering and Soil

Metamorphism and Metamorphic Rocks

Geologic Time

Crustal Deformation

Earthquakes and Earths Interior

The Ocean Floor

Plate Tectonics: the Framework for Modern Geology

Mountain Building and Continental Frameworks

Mass Wasting: the Work of Gravity

Running Water

Groundwater

Glaciers and Glaciation

Deserts and Winds

Shorelines

Mineral and Energy Resources

Filters