Which characteristic is NOT a factor when deciding to convert a natural landslide dam into a permanent dam?
a. geometry of the landslide dam
b. material of the landslide dam
c. rate of stream flow
d. ability to construct spillways and breaches
e. temperature of the water
Question 2The key element in creating avalanche danger is ____.
a. a frozen cornice or overhang
b. a frozen cornice or overhang
c. recent freezing or packing of the surface layer
d. a source of vibration
e. a weak layer in the snowpack
Question 3Soil creep is most likely to result from ____.
a. vibrational disruption of a slope
b. a desaturated soil with less cohesion
c. soil expansion and contraction
d. a higher angle of repose for the material than the slope angle
e. removal of mass at the head of the slope
Question 4The most important factor in creating a translational slide hazard is ____.
a. a pre-existing weak surface parallel to a slope
b. ground motion and shaking
c. injection of water into the headscarp
d. removal of vegetation
e. collapse of a talus
Question 5A rotational slump typically occurs in ____.
a. any material that lacks a planar surface guide
b. heterogeneous, cohesive material with a planar surface guide
c. heterogeneous, non-cohesive material with no planar surface guide
d. homogenous, cohesive material with a planar surface guide
e. homogenous, cohesive material with no planar surface guide
Question 6Which list is correctly ordered from the least rapid to the most rapid type of landslide?
a. debris flow, rockfall, rotational slump
b. debris flow, rotational slump, rockfall
c. rotational slump, debris flow, rockfall
d. rotational slump, rockfall, debris flow
e. rockfall, debris flow, rotational slump
Question 7Fluidization would be a hazard in a(n) ____.
a. snow avalanche
b. rockfall
c. rotational slump
d. lateral slump
e. debris flow
Quick Reply
