Question 1

Where is maximum velocity in a meandering stream?

Accepted Answer

A) Near the bottom. 
B) At the inner portion of the meander curve. 
C) At the center and near the surface. 
D) At the outer portion of the meander curve. 
A) Near the bottom. 
B) At the inner portion of the meander curve. 
C) At the center and near the surface. 
D) At the outer portion of the meander curve.

Question 2

Which refers to drainage density?

Accepted Answer

A) The thickness of the water in the stream. 
B) The number of channels in an area. 
C) A measure determined by dividing the length of all the channels by the area of its drainage basin. 
D) The arrangement of channels in a given area. 
A) The thickness of the water in the stream. 
B) The number of channels in an area. 
C) A measure determined by dividing the length of all the channels by the area of its drainage basin. 
D) The arrangement of channels in a given area.

Question 3

Which best describes a meandering stream?

Accepted Answer

A) A stream that is completely stable. 
B) A stream that is completely unstable. 
C) A stream that is delicately balanced between equilibrium and chaos. 
D) A stream that is closed in terms of energy and matter input. 
A) A stream that is completely stable. 
B) A stream that is completely unstable. 
C) A stream that is delicately balanced between equilibrium and chaos. 
D) A stream that is closed in terms of energy and matter input.

Question 4

When does a stream become graded?

Accepted Answer

A) When erosion and deposition are in equilibrium. 
B) When a local base level controls the stream. 
C) When a river achieves a longitudinal stream profile of a steeper upstream portion. 
D) When its basin becomes rejuvenated. 
A) When erosion and deposition are in equilibrium. 
B) When a local base level controls the stream. 
C) When a river achieves a longitudinal stream profile of a steeper upstream portion. 
D) When its basin becomes rejuvenated.

Question 5

Which is the drop in stream elevation per unit distance?

Accepted Answer

A) Discharge. 
B) Base level. 
C) Gradient. 
D) Aspect. 
A) Discharge. 
B) Base level. 
C) Gradient. 
D) Aspect.

Question 6

Which of the following is factored when considering discharge?

Accepted Answer

A) Channel length,channel width,channel depth. 
B) Channel width,channel depth,water velocity. 
C) Channel depth,water velocity,channel length. 
D) Water velocity,channel length,channel width. 
A) Channel length,channel width,channel depth. 
B) Channel width,channel depth,water velocity. 
C) Channel depth,water velocity,channel length. 
D) Water velocity,channel length,channel width.

Question 7

Which is the effect of urbanization on a typical stream hydrograph?

Accepted Answer

A) Urbanization creates a base flow. 
B) Urbanization increases lag time between storm peak and peak stream discharge. 
C) Urbanization decreases runoff. 
D) Urbanization decreases lag time between storm peak and peak stream discharge. 
A) Urbanization creates a base flow. 
B) Urbanization increases lag time between storm peak and peak stream discharge. 
C) Urbanization decreases runoff. 
D) Urbanization decreases lag time between storm peak and peak stream discharge.

Question 8

Erosion of the walls of a meandering channel normally occurs on the outside curve of a meander.

Accepted Answer

A) True 
 B)False

Question 9

As flowing water leaves a constricted channel,which of the following occurs that leads to the formation of alluvial fans?

Accepted Answer

A) The water gains velocity. 
B) The water changes direction. 
C) The water down cuts. 
D) The water loses velocity. 
A) The water gains velocity. 
B) The water changes direction. 
C) The water down cuts. 
D) The water loses velocity.

Question 10

If an area was flooded by the 100-year flood last year,what can be concluded?

Accepted Answer

A) The next 100-year flood will occur in exactly 100 years. 
B) The next 100-year flood will occur in exactly 99 years. 
C) There is a 1% chance you could be flooded by the 100-year flood again this year. 
D) Another flood of that size will not occur during your lifetime. 
A) The next 100-year flood will occur in exactly 100 years. 
B) The next 100-year flood will occur in exactly 99 years. 
C) There is a 1% chance you could be flooded by the 100-year flood again this year. 
D) Another flood of that size will not occur during your lifetime.

Question 11

In a straight channel,the greatest flow velocities are found along the bottom in the middle of the stream.

Accepted Answer

A) True 
 B)False

Question 12

The mouth of a river is where the river reaches a base level.

Accepted Answer

A) True 
 B)False

Question 13

Which of the following is correctly matched?

Accepted Answer

A) Abrasion - a hydraulic squeeze-and-release action. 
B) Competence - the total possible load that a stream can transport. 
C) Capacity - a stream's ability to move particles of a specific size. 
D) Saltation - particles rolled and bounced along a stream bed. 
A) Abrasion - a hydraulic squeeze-and-release action. 
B) Competence - the total possible load that a stream can transport. 
C) Capacity - a stream's ability to move particles of a specific size. 
D) Saltation - particles rolled and bounced along a stream bed.

Question 14

Base level refers to the average stream depth immediately following a normal precipitation event.

Accepted Answer

A) True 
 B)False

Question 15

Which process is the main process contributing material in solution in sediment load?

Accepted Answer

A) Physical weathering. 
B) Chemical weathering. 
C) Biological weathering. 
D) Erosion. 
A) Physical weathering. 
B) Chemical weathering. 
C) Biological weathering. 
D) Erosion.

Question 16

Which are large river systems that have multiple large channels across a vast floodplain?

Accepted Answer

A) Anabranching rivers. 
B) Braided streams. 
C) Meandering streams. 
D) Steep-walled channels. 
A) Anabranching rivers. 
B) Braided streams. 
C) Meandering streams. 
D) Steep-walled channels.

Question 17

Which determines drainage density?

Accepted Answer

A) Dividing the number of streams in a basin by the basin area. 
B) Dividing the actual path length of a stream by the shortest path length of the stream. 
C) Averaging the discharge values across a drainage basin. 
D) Dividing the total length of all stream channels in the basin by the area of the basin. 
A) Dividing the number of streams in a basin by the basin area. 
B) Dividing the actual path length of a stream by the shortest path length of the stream. 
C) Averaging the discharge values across a drainage basin. 
D) Dividing the total length of all stream channels in the basin by the area of the basin.

Question 18

Consider a mass of water above base level in a stream as it flows downstream.Contrast the energy when the water is above base level with the energy when it flows downstream.Which lists the correct pairing of stream energy?

Accepted Answer

A) Kinetic; potential. 
B) Potential; kinetic. 
C) Kinetic; kinetic. 
D) Potential; potential. 
A) Kinetic; potential. 
B) Potential; kinetic. 
C) Kinetic; kinetic. 
D) Potential; potential.

Question 19

Discuss the concept of the graded stream.Do most streams approximate a graded stream? Why or why not?

Accepted Answer

A graded stream is one in which the chan

Question 20

Erosion is a degrading process whereas deposition is an aggrading process.

Accepted Answer

A) True 
 B)False

Where is maximum velocity in a meandering stream?

Which refers to drainage density?

Which best describes a meandering stream?

When does a stream become graded?

Which is the drop in stream elevation per unit distance?

Which of the following is factored when considering discharge?

Which is the effect of urbanization on a typical stream hydrograph?

Erosion of the walls of a meandering channel normally occurs on the outside curve of a meander.

As flowing water leaves a constricted channel,which of the following occurs that leads to the formation of alluvial fans?

If an area was flooded by the 100-year flood last year,what can be concluded?

In a straight channel,the greatest flow velocities are found along the bottom in the middle of the stream.

The mouth of a river is where the river reaches a base level.

Which of the following is correctly matched?

Base level refers to the average stream depth immediately following a normal precipitation event.

Which process is the main process contributing material in solution in sediment load?

Which are large river systems that have multiple large channels across a vast floodplain?

Which determines drainage density?

Consider a mass of water above base level in a stream as it flows downstream.Contrast the energy when the water is above base level with the energy when it flows downstream.Which lists the correct pairing of stream energy?

Discuss the concept of the graded stream.Do most streams approximate a graded stream? Why or why not?

Erosion is a degrading process whereas deposition is an aggrading process.

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Exam 15: River Systems

Where is maximum velocity in a meandering stream?

Which refers to drainage density?

Which best describes a meandering stream?

When does a stream become graded?

Which is the drop in stream elevation per unit distance?

Which of the following is factored when considering discharge?

Which is the effect of urbanization on a typical stream hydrograph?

Erosion of the walls of a meandering channel normally occurs on the outside curve of a meander.

As flowing water leaves a constricted channel,which of the following occurs that leads to the formation of alluvial fans?

If an area was flooded by the 100-year flood last year,what can be concluded?

In a straight channel,the greatest flow velocities are found along the bottom in the middle of the stream.

The mouth of a river is where the river reaches a base level.

Which of the following is correctly matched?

Base level refers to the average stream depth immediately following a normal precipitation event.

Which process is the main process contributing material in solution in sediment load?

Which are large river systems that have multiple large channels across a vast floodplain?

Which determines drainage density?

Consider a mass of water above base level in a stream as it flows downstream.Contrast the energy when the water is above base level with the energy when it flows downstream.Which lists the correct pairing of stream energy?

Discuss the concept of the graded stream.Do most streams approximate a graded stream? Why or why not?

Erosion is a degrading process whereas deposition is an aggrading process.

Essentials of Geography

Solar Energy to Earth and the Seasons

Earths Modern Atmosphere

Atmosphere and Surface Energy Balances

Global Temperatures

Atmospheric and Oceanic Circulations

Water and Atmospheric Moisture

Weather

Water Resources

Global Climate Systems

Climate Change

The Dynamic Planet

Tectonics, earthquakes, and Volcanism

Weathering, karst Landscapes, and Mass Movement

Oceans, coastal Processes, and Wind Processes

Glacial and Periglacial Landscapes

The Geography of Soils

Ecosystem Essentials

Terrestrial Biomes

Filters