Question 1

Streams draw their water from a region known as the

Accepted Answer

A)  Drainage divide. 
B)  Drainage lake. 
C)  Drainage aquifer. 
D)  Drainage basin. 
A)  Drainage divide. 
B)  Drainage lake. 
C)  Drainage aquifer. 
D)  Drainage basin. A

Question 2

Streams respond quickly to water input,so once a heavy rainstorm has stopped,floodwaters will rise no higher.

Accepted Answer

A) True 
 B)False  False

Question 3

Strategies designed to reduce damage to structures in floodplains include

Accepted Answer

A)  Planting vegetation within the stream channel. 
B)  Filling in land in the floodplain to reduce flood volume. 
C)  Raising buildings on stilts to elevate floor levels. 
D)  All of the choices are correct. 
A)  Planting vegetation within the stream channel. 
B)  Filling in land in the floodplain to reduce flood volume. 
C)  Raising buildings on stilts to elevate floor levels. 
D)  All of the choices are correct. C

Question 4

Channelization strategies include all of the following except

Accepted Answer

A)  Dredging and deepening a channel. 
B)  Straightening a channel. 
C)  Building a flood-control dam. 
D)  Deliberately cutting off a meander. 
A)  Dredging and deepening a channel. 
B)  Straightening a channel. 
C)  Building a flood-control dam. 
D)  Deliberately cutting off a meander.

Question 5

Hazards regarding floods can be greatly reduced where open lands are available by using

Accepted Answer

A)  Slope stabilization. 
B)  Rock bolts. 
C)  Channelization. 
D)  Retention ponds. 
A)  Slope stabilization. 
B)  Rock bolts. 
C)  Channelization. 
D)  Retention ponds.

Question 6

The steepness or slope of a stream channel in the direction of flow is the channel's

Accepted Answer

A)  Capacity. 
B)  Bed load. 
C)  Base level. 
D)  Gradient. 
A)  Capacity. 
B)  Bed load. 
C)  Base level. 
D)  Gradient.

Question 7

Urbanization in a floodplain

Accepted Answer

A)  Does not occur because it would be unsafe. 
B)  Reduces flood hazards by preventing infiltration. 
C)  Has no effect on flood hazards. 
D)  Increases flood hazards by reducing floodplain storage capacity and increasing surface runoff. 
A)  Does not occur because it would be unsafe. 
B)  Reduces flood hazards by preventing infiltration. 
C)  Has no effect on flood hazards. 
D)  Increases flood hazards by reducing floodplain storage capacity and increasing surface runoff.

Question 8

Use of dams to form reservoirs for water supply may conflict with the flood-control functions of the dam/reservoir system.

Accepted Answer

A) True 
 B)False

Question 9

To minimize the disturbance to a stream spanned by a bridge,supports for the bridge should be founded within the stream and made as wide as possible.

Accepted Answer

A) True 
 B)False

Question 10

A stream's load consists of

Accepted Answer

A)  The amount of water it carries over a specified time period. 
B)  The amount of material (solid and dissolved) carried by the water in a stream. 
C)  The amount of water and solid material carried downstream. 
D)  The amount by which a delta increases in size in a year. 
A)  The amount of water it carries over a specified time period. 
B)  The amount of material (solid and dissolved) carried by the water in a stream. 
C)  The amount of water and solid material carried downstream. 
D)  The amount by which a delta increases in size in a year.

Question 11

The Aswan High Dam in Egypt has resulted in diminished crop production in the Nile River floodplain downstream because annual flooding no longer brings new and fertile soil.

Accepted Answer

A) True 
 B)False

Question 12

The difference of time between a precipitation event and peak flood discharge is termed as peak lag time.

Accepted Answer

A) True 
 B)False

Question 13

Concern about floods is such that accurate flood-hazard maps are now available for all streams in the United States.

Accepted Answer

A) True 
 B)False

Question 14

If the width of the stream is 20 feet,the depth 5 feet,and velocity 10 feet per second,then the discharge is

Accepted Answer

A)  1000 feet/second. 
B)  1000 square feet/second. 
C)  1000 cubic feet per second. 
D)  None of the answers are correct. 
A)  1000 feet/second. 
B)  1000 square feet/second. 
C)  1000 cubic feet per second. 
D)  None of the answers are correct.

Question 15

The term "flood-frequency curve",though in common use,may be misleading in that it implies that floods of certain sizes recur at regular intervals.

Accepted Answer

A) True 
 B)False

Question 16

Infiltration of water below an artificial reservoir can induce earthquakes.

Accepted Answer

A) True 
 B)False

Question 17

A cut-off meander is also known as

Accepted Answer

A)  A drainage basin. 
B)  An oxbow. 
C)  A floodplain. 
D)  A delta. 
A)  A drainage basin. 
B)  An oxbow. 
C)  A floodplain. 
D)  A delta.

Question 18

The Glen Canyon Dam,built on the Colorado River between 1956 and 1966 forming Lake Powell is now considered by many to be an environmental liability.

Accepted Answer

A) True 
 B)False

Question 19

A depositional feature formed when a fast-flowing stream joins a slower one or a mountain stream flows out into a plain is

Accepted Answer

A)  An oxbow. 
B)  A meander. 
C)  A floodplain. 
D)  An alluvial fan. 
A)  An oxbow. 
B)  A meander. 
C)  A floodplain. 
D)  An alluvial fan.

Question 20

Tile drainage systems and city storm sewers

Accepted Answer

A)  Reduce flood hazards by removing water quickly. 
B)  Have no effect on flood hazards; they do not drain into streams. 
C)  Increase flood hazards by preventing infiltration. 
D)  Reduce flooding where they are installed but may increase it along a stream into which the discharge flows. 
A)  Reduce flood hazards by removing water quickly. 
B)  Have no effect on flood hazards; they do not drain into streams. 
C)  Increase flood hazards by preventing infiltration. 
D)  Reduce flooding where they are installed but may increase it along a stream into which the discharge flows.

Streams draw their water from a region known as the

Streams respond quickly to water input,so once a heavy rainstorm has stopped,floodwaters will rise no higher.

Strategies designed to reduce damage to structures in floodplains include

Channelization strategies include all of the following except

Hazards regarding floods can be greatly reduced where open lands are available by using

The steepness or slope of a stream channel in the direction of flow is the channel's

Urbanization in a floodplain

Use of dams to form reservoirs for water supply may conflict with the flood-control functions of the dam/reservoir system.

To minimize the disturbance to a stream spanned by a bridge,supports for the bridge should be founded within the stream and made as wide as possible.

A stream's load consists of

The Aswan High Dam in Egypt has resulted in diminished crop production in the Nile River floodplain downstream because annual flooding no longer brings new and fertile soil.

The difference of time between a precipitation event and peak flood discharge is termed as peak lag time.

Concern about floods is such that accurate flood-hazard maps are now available for all streams in the United States.

If the width of the stream is 20 feet,the depth 5 feet,and velocity 10 feet per second,then the discharge is

The term "flood-frequency curve",though in common use,may be misleading in that it implies that floods of certain sizes recur at regular intervals.

Infiltration of water below an artificial reservoir can induce earthquakes.

A cut-off meander is also known as

The Glen Canyon Dam,built on the Colorado River between 1956 and 1966 forming Lake Powell is now considered by many to be an environmental liability.

A depositional feature formed when a fast-flowing stream joins a slower one or a mountain stream flows out into a plain is

Tile drainage systems and city storm sewers

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Exam 6: Streams and Flooding

Streams draw their water from a region known as the

Streams respond quickly to water input,so once a heavy rainstorm has stopped,floodwaters will rise no higher.

Strategies designed to reduce damage to structures in floodplains include

Channelization strategies include all of the following except

Hazards regarding floods can be greatly reduced where open lands are available by using

The steepness or slope of a stream channel in the direction of flow is the channel's

Urbanization in a floodplain

Use of dams to form reservoirs for water supply may conflict with the flood-control functions of the dam/reservoir system.

To minimize the disturbance to a stream spanned by a bridge,supports for the bridge should be founded within the stream and made as wide as possible.

A stream's load consists of

The Aswan High Dam in Egypt has resulted in diminished crop production in the Nile River floodplain downstream because annual flooding no longer brings new and fertile soil.

The difference of time between a precipitation event and peak flood discharge is termed as peak lag time.

Concern about floods is such that accurate flood-hazard maps are now available for all streams in the United States.

If the width of the stream is 20 feet,the depth 5 feet,and velocity 10 feet per second,then the discharge is

The term "flood-frequency curve",though in common use,may be misleading in that it implies that floods of certain sizes recur at regular intervals.

Infiltration of water below an artificial reservoir can induce earthquakes.

A cut-off meander is also known as

The Glen Canyon Dam,built on the Colorado River between 1956 and 1966 forming Lake Powell is now considered by many to be an environmental liability.

A depositional feature formed when a fast-flowing stream joins a slower one or a mountain stream flows out into a plain is

Tile drainage systems and city storm sewers

Planet and Population: An Overview

Rocks and Minerals-A First Look

Plate Tectonics

Earthquakes

Volcanoes

Coastal Zones and Processes

Mass Movements

Ice and Glaciers,wind and Deserts

Climate-Past, present, and Future

Ground Water and Water Resources

Weathering, erosion, and Soil Resources

Mineral and Rock Resources

Energy Resources-Fossil Fuels

Energy Resources-Alternative Sources

Waste Disposal

Water Pollution

Air Pollution

Environmental Law and Policy

Land-Use Planning and Engineering Geology

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