Florida International University
Department of Earth Sciences
GLY 1010: Introduction to Earth Science
Practice Quiz (Not for credit)


 
 
 
 
1. ______ is a measure of a fluid's resistance to flow.
A. Viscosity
B. Capacity
C. Permeability
D. Competence

 
2. Which of the following promotes turbulent flow instead of laminar flow?
A. decreasing flow velocity
B. decreasing flow depth
C. decreasing fluid viscosity
D. all of these

 
3. Which of the following is not a factor affecting whether a flow is laminar or turbulent?
A. flow velocity
B. flow geometry
C. flow temperature
D. flow viscosity

 
4. What is the term for the total sediment load carried by a stream?
A. competence
B. capacity
C. discharge
D. viscosity

 
5. Which of the following flows is most likely to be turbulent?
A. slow flow in a shallow channel
B. fast flow in a shallow channel
C. slow flow in a deep channel
D. fast flow in a deep channel

 
6. Which of the following statements about fluid flow is false?
A. As the velocity of a stream increases, laminar flow may change to turbulent flow.
B. The viscosity of most fluids increases as temperature increases.
C. Most streams and rivers are turbulent.
D. The more viscous the fluid, the more likely the flow is laminar.

 
7. Suspended load includes material ___________.
A. rolling along the bottom of the stream
B. temporarily or permanently suspended in the flow
C. deposited on the bottom of the stream
D. rolling along the bottom and suspended in the flow

 
8. Which of the following would be part of a stream's bed load?
A. saltating sand grains
B. suspended clay particles
C. gravel sliding along the bottom
D. dissolved salts

 
9. In a sand dune, _________ occurs on the upstream side and ___________ occurs on the downstream side.
A. erosion...deposition
B. erosion...erosion
C. deposition...erosion
D. deposition...deposition

 
10. A floodplain is level with the top of a river's ____________.
A. stream valley
B. channel
C. high-tide mark
D. base level

 
11. Curves and bends in a stream channel are called ______.
A. braids
B. deltas
C. meanders
D. alluvial fans

 
12. Oxbow lakes are associated with ______.
A. braided rivers
B. meandering rivers
C. straight rivers
D. dendritic rivers

 
13. In which of the following locations would one expect to find a braided stream?
A. at the edge of a melting glacier
B. on a gently sloping plain of fine-grained sediment
C. in a narrow gorge cut into bedrock
D. all of these

 
14. At a bend in a river, ______ occurs on the outside of the bend and ______ occurs on the inside of the bend.
A. erosion . . . deposition
B. deposition . . . erosion
C. erosion . . . erosion
D. deposition. . . deposition

 
15.    

In the map of a stream above, the arrow is pointing to a(n) ____________.
A. point bar
B. oxbow lake
C. sand dune
D. natural levee

 
16. The volume of water flowing past a point in a given time is called the ______.
A. competence
B. viscosity
C. discharge
D. capacity

 
17. Which of the following discharge equations is correct?
A. discharge = width / (depth * velocity)
B. discharge = (width * depth) / velocity
C. discharge = width * depth * velocity
D. discharge = (width * velocity) / depth

 
18. For a given river, which of the following floods would have the largest discharge?
A. a 5-year flood
B. a 20-year flood
C. a 100-year flood
D. one cannot tell from the information provided

 
19. Which of the following statements regarding floods is true?
A. A 50-year flood is generally larger than a 100-year flood
B. A 100-year flood has a 10% chance of occurring in any one year.
C. If there is a 20% probability of a flood of a certain height occurring in any one year, it is called a 5-year flood.
D. The recurrence interval of a flood of a certain height does not depend upon the width of the floodplain.

 
20. The shape of the longitudinal profile of all streams is _______.
A. a horizontal line
B. a straight line sloping downstream
C. a concave upward curve
D. a concave downward curve

 
21. In a graded stream __________.
A. the discharge is constant from the head of the stream to the mouth
B. there is balance between erosion and sedimentation
C. coarse-grained sediments accumulate at the base of the stream; finer-grained sediments are deposited at the head of the stream
D. the slope of the stream is constant from head to mouth

 
22. If a dam is built, sediment will __________ on the upstream side of the dam and sediment will ___________ on the downstream side of the dam.
A. accumulate ... accumulate
B. accumulate ... erode
C. erode ... accumulate
D. erode ... erode

 
23. Large, cone-shaped deposits of sediment at a mountain front are called ______.
A. deltas
B. alluvial fans
C. natural levees
D. talus ridges

 

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