GEOLOGY 201 FINAL EXAM
QUESTIONS AND ANSWERS ALL
CORRECT
Where is the mean velocity of a stream measured from? - Answer- mean velocity is at a
0.6 depth measured from the surface in the middle of the channel
Define load (involves depositional processes of a stream) - Answer- total amount of
sediment carried by a stream
The motion of an object, floating in deep water in the ocean, which results from the
passing of a wave is - Answer- circular, with no net transportation
The phenomenon, in which a wave that approaches a coastline at a high angle bends
as one end enters shallow water before the other end, is called... - Answer- wave
refraction
If a hurricane is moving west in the northern hemisphere, the maximum storm surge due
to wind occurs where? - Answer- to the north of the storm
What 3 components is till often composed of? - Answer- clay, sand, boulders
Free-phase DNAPL plumes will move in what direction? - Answer- vertically downward
to the base of the aquifer
For pump and treat strategies of remediation, it is important to delineate the ______ , a
region of flow that is intercepted by one or more wells pumping at a certain rate -
Answer- Capture Zone
A common mechanism for the formation of lateral spreads is - Answer- remolding due to
displacement of salty pore water in underlying clayey beds by freshwater
A land form that was deposited by river flow in a tunnel beneath a glacier is an: -
Answer- esker
Deposits of ablation till are commonly: - Answer- hummocky
Define dissolved load - Answer- a load that is carried in solution
, Define suspended load - Answer- a load that is carried in small particles
Define bed load - Answer- a load that is carried by large particles that roll and slide
along the bed of a stream
The Clean Water Act of 1972 requires that _____ percent of the BOD removed from
water sources by secondary treatment processes - Answer- 85
Gasoline is an example of - Answer- LNAPL
What is not a common attenuation mechanism for contaminants in groundwater -
Answer- hydrolysis
what are common attenuation mechanisms for contaminants in groundwater - Answer-
hydrodynamic dispersion, diffusion, biogradation
Other conditions being the same, which situation is most likely to produce a landslide -
Answer- Sedimentary strata dipping parallel to the slope of the hillside
the safety factor of a slope is: - Answer- the ratio of the resisting forces to the driving
forces
In the Mohr-Coulumb equation fro a saturated material, the effective normal stress is
equal to the: - Answer- normal stress minus the fluid pressure
name 3 things that will increase the resisting forces on a slope - Answer- drainage,
loading the toe, installing rock bolts
migration of a waterfall is a consequence of: - Answer- headward erosion
a deposition feature that forms where a stream emerges from a mountain front onto a
valley is called an - Answer- alluvial fan
Particle A has the radius two times greater than of Particle B. All other conditions being
equal, what is the relation between their terminal velocities of settling in water? -
Answer- The velocity of Particle A is 4 times that of Particle B
What does the term "100-year flood" mean? - Answer- *it is a flood recurrence interval
based on statistical analysis of many decades of stream data
* there is a 1% chance that there will be a flood of this magnitude every year
The formula gT/2pi expresses what? - Answer- wave velocity in deep water
rapidly moving currents flowing directly away from a beach in seaward direction are
known as: - Answer- rip currents
QUESTIONS AND ANSWERS ALL
CORRECT
Where is the mean velocity of a stream measured from? - Answer- mean velocity is at a
0.6 depth measured from the surface in the middle of the channel
Define load (involves depositional processes of a stream) - Answer- total amount of
sediment carried by a stream
The motion of an object, floating in deep water in the ocean, which results from the
passing of a wave is - Answer- circular, with no net transportation
The phenomenon, in which a wave that approaches a coastline at a high angle bends
as one end enters shallow water before the other end, is called... - Answer- wave
refraction
If a hurricane is moving west in the northern hemisphere, the maximum storm surge due
to wind occurs where? - Answer- to the north of the storm
What 3 components is till often composed of? - Answer- clay, sand, boulders
Free-phase DNAPL plumes will move in what direction? - Answer- vertically downward
to the base of the aquifer
For pump and treat strategies of remediation, it is important to delineate the ______ , a
region of flow that is intercepted by one or more wells pumping at a certain rate -
Answer- Capture Zone
A common mechanism for the formation of lateral spreads is - Answer- remolding due to
displacement of salty pore water in underlying clayey beds by freshwater
A land form that was deposited by river flow in a tunnel beneath a glacier is an: -
Answer- esker
Deposits of ablation till are commonly: - Answer- hummocky
Define dissolved load - Answer- a load that is carried in solution
, Define suspended load - Answer- a load that is carried in small particles
Define bed load - Answer- a load that is carried by large particles that roll and slide
along the bed of a stream
The Clean Water Act of 1972 requires that _____ percent of the BOD removed from
water sources by secondary treatment processes - Answer- 85
Gasoline is an example of - Answer- LNAPL
What is not a common attenuation mechanism for contaminants in groundwater -
Answer- hydrolysis
what are common attenuation mechanisms for contaminants in groundwater - Answer-
hydrodynamic dispersion, diffusion, biogradation
Other conditions being the same, which situation is most likely to produce a landslide -
Answer- Sedimentary strata dipping parallel to the slope of the hillside
the safety factor of a slope is: - Answer- the ratio of the resisting forces to the driving
forces
In the Mohr-Coulumb equation fro a saturated material, the effective normal stress is
equal to the: - Answer- normal stress minus the fluid pressure
name 3 things that will increase the resisting forces on a slope - Answer- drainage,
loading the toe, installing rock bolts
migration of a waterfall is a consequence of: - Answer- headward erosion
a deposition feature that forms where a stream emerges from a mountain front onto a
valley is called an - Answer- alluvial fan
Particle A has the radius two times greater than of Particle B. All other conditions being
equal, what is the relation between their terminal velocities of settling in water? -
Answer- The velocity of Particle A is 4 times that of Particle B
What does the term "100-year flood" mean? - Answer- *it is a flood recurrence interval
based on statistical analysis of many decades of stream data
* there is a 1% chance that there will be a flood of this magnitude every year
The formula gT/2pi expresses what? - Answer- wave velocity in deep water
rapidly moving currents flowing directly away from a beach in seaward direction are
known as: - Answer- rip currents
