EOSC 114 Landslides Exam Questions and Correct Answers
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Module
EOSC 114 Landslides
Institution
EOSC 114 Landslides
EOSC 114 Landslides Exam Questions and Correct Answers
Which landslide type may cause a significant amount of damage, while posing a low threat to life?
A. creep
B. debris flow
C. quick clay flow
D. rock fall
E. massive rock avalanche - Answer- A. creep
Sturzstroms are a combination o...
EOSC 114 Landslides Exam Questions
and Correct Answers
Which landslide type may cause a significant amount of damage, while posing a low
threat to life?
A. creep
B. debris flow
C. quick clay flow
D. rock fall
E. massive rock avalanche - Answer- A. creep
Sturzstroms are a combination of which two landslide types?
A. topples and slumps
B. falls and slumps
C. falls and translational slides
D. topples and falls
E. translational slides and topples - Answer- C. falls and translational slides
In areas where loose soils are saturated with water, seismic shaking (i.e. from an
earthquake) can _____.
A. trigger numerous rockfalls, endangering cars traveling on highways
B. help to compact the soils, strengthening the slope
C. transform the behaviour of a slope into one that begins to slowly creep
D. cause water pressures to dramatically increase resulting in liquefaction
E. help drain the soils thereby strengthening the slope - Answer- D. cause water
pressures to dramatically increase resulting in liquefaction
Which of the following causes of landslides is LEAST important in British Columbia?
A. climate
B. slope angle
C. quick clays
D. removal of vegetation
E. overloading - Answer- C. quick clays
The Barrier was ORIGINALLY formed by _______.
A. a large landslide from Mt. Garibaldi
B. the Cheakamus glacier carving out a vertical face
, C. lava cooling as it came in contact with a valley glacier
D. millions of years of erosion
E. large vertical displacements along a fault - Answer- C. lava cooling as it came in
contact with a valley glacier
In quick clays, a "House-of-cards" structure is composed primarily of ______.
A. unconsolidated clay particles
B. clay particles flowing like liquid
C. unconsolidated sand particles
D. sand and water mixture
E. saturated sand - Answer- A. unconsolidated clay particles
Which of the following factors is expected to lead to INCREASED landslide activity and
fatalities with time?
A. deforestation in landslide-prone areas
B. changing global climate patterns
C. increasing population density in mountainous areas
D. expanding development onto undeveloped slopes
E. all of the above - Answer- E. all of the above
Which of the following statements is FALSE?
A. Shear strength counteracts shear stress.
B. The term landslide is a generic term and can include mass movements of varying
velocities and types.
C. The factor of safety is the ratio of shear stress to shear strength.
D. Shear stress acts perpendicular to normal stress.
E. Slope failure will occur when the factor of safety is less than 1.0. - Answer- C. The
factor of safety is the ratio of shear stress to shear strength.
Which would NOT cause a landslide? - Answer- Adding the same amount of material to
the driving mass and the resisting mass
A landslide trigger ________. - Answer- can be anthropogenic in origin
Which statement is FALSE?
A. Quick clays can liquefy only after significant shaking such as during an earthquake.
B. The shear strength of sediments is lower than that of rocks.
C. The area within and near UBC is in danger of landslides.
D. Landslide velocities can range from a few millimeters/year to a few meters/second.
E. Gravity is the ultimate cause of all landslides. - Answer- Quick clays can liquefy only
after significant shaking such as during an earthquake
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