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WorksheetsMass Wasting and Subsidence
Total questions: 14
Worksheet time: 13mins
Which of the following are types of flows?
Select all that apply:
Debris Flows
Debris Avalanche
Creep
Debris Falls
Which of the following is NOT a type of slide?
Translational Slide
Block Glides
Slumps
Rotational Slides
Creep
Which of the following are true about Slumps
Select all that apply?
it is known as a rotational slide
moves on a center of rotation
moves as a unit
slides along a failure plane
True or False:
The ideal factor of saftey is that of 1.0 or less
True
False
The initial period of rain that saturates the ground prior to a debris flow is called
Antecedent Rainfall
Rainshadow
Subsequent Rainfall
Rainflow
Rainfall that initiates the inertia for debris flow
Subsequent Rainfall
Antecedent Rainfall
Rainshadow
Tumu Rainfall
Out of these which are fast modes of mass wasting?
select all that apply.
block glides
avalanche
creep
rock fall
The force that resists sliding between two surfaces at rest is known as what?
Static Friction
Resisting force
Driving Force
Normal Force
Resisting Force is when
Select all that apply
friction x normal force
the force direction is opposite to that of the moving body
the force direction is perpendicular to that of the moving body
the principal that all object in motion will stay in motion
When it comes to the factor of safety which of the following value is the most ideal?
1.5
1.0
-1.5
-1.0
To which are the ways that humans can induce subsidence?
extraction of oil
extraction of gas
extraction of water
magma redistribution
To which of these are the ways subsidence can occur naturally?
Select all that apply
earthquakes
volcanic activity
dissolution
drought
What even is subsidence?
when the applied load of a structure is greater than the bearing capacity of the soil beneath it
when soil is relocated from one river bed to another
movement along a fault plane
the act of prolonged interlatitudinal flooding
To which of the following IS NOT a means of subsidence mitigation?
replacement of removed fluids
water level moderation
providing mine structural support and backfill
initiating local liquefaction
