Question 1

What is a hydrograph NOT able to tell you about a river?

Accepted Answer

A)  The stage or discharge of a river at a particular time 
B)  Size of a river flood 
C)  How the stage or discharge of a river varies over time 
D)  The highest discharges or stages for rivers over a period of time 
E)  The amount of rainfall an area receives 
A)  The stage or discharge of a river at a particular time 
B)  Size of a river flood 
C)  How the stage or discharge of a river varies over time 
D)  The highest discharges or stages for rivers over a period of time 
E)  The amount of rainfall an area receives

Question 2

Hydrographs are used to show the amount of water in the hydrologic cycle.

Accepted Answer

A) True 
 B)False

Question 3

Which of the following will tend to REDUCE the size of a river flood?

Accepted Answer

A)  High amount of precipitation in a drainage basin 
B)  High rate at which the precipitation soaks into the ground 
C)  Fast rate at which the runoff moves towards the river 
D)  High amount of moisture in the soil (water-saturated soil) 
A)  High amount of precipitation in a drainage basin 
B)  High rate at which the precipitation soaks into the ground 
C)  Fast rate at which the runoff moves towards the river 
D)  High amount of moisture in the soil (water-saturated soil)

Question 4

After a flood, you should be sure to wash anything that has been in touch with river water.

Accepted Answer

A) True 
 B)False

Question 5

The bed load of a stream is involves the largest grains in the stream.

Accepted Answer

A) True 
 B)False

Question 6

Which of the following is NOT an example of a base level for a river?

Accepted Answer

A)  Ocean 
B)  Lake 
C)  Rapids 
D)  Reservoir 
A)  Ocean 
B)  Lake 
C)  Rapids 
D)  Reservoir

Question 7

How would a river in an area changed from forest to farmland react to changes?

Accepted Answer

A)  Decreased amounts of sediment would increase the gradient of the stream. 
B)  Increased amounts of sediment would increase the gradient of the stream. 
C)  Decreased amounts of sediment would decrease the gradient of the stream. 
D)  Increased amounts of sediment would decrease the gradient of the stream. 
E)  The change in land use would have no effect on the stream. 
A)  Decreased amounts of sediment would increase the gradient of the stream. 
B)  Increased amounts of sediment would increase the gradient of the stream. 
C)  Decreased amounts of sediment would decrease the gradient of the stream. 
D)  Increased amounts of sediment would decrease the gradient of the stream. 
E)  The change in land use would have no effect on the stream.

Question 8

Rivers normally stay in a state of dynamic equilibrium between their flow velocity, their gradient, and their cross-sectional area.

Accepted Answer

A) True 
 B)False

Question 9

Which of the following is NOT information that can be obtained by calculation of a recurrence interval for a flood?

Accepted Answer

A)  How often on average floods of certain sizes occur 
B)  It can be used to make maps along rivers of flood risk. 
C)  It can be used to help city planners decide where and where not to build. 
D)  It can give homeowners help in making decisions about purchasing flood insurance. 
E)  Time of day when the maximum floodwaters will occur during a flood event 
A)  How often on average floods of certain sizes occur 
B)  It can be used to make maps along rivers of flood risk. 
C)  It can be used to help city planners decide where and where not to build. 
D)  It can give homeowners help in making decisions about purchasing flood insurance. 
E)  Time of day when the maximum floodwaters will occur during a flood event

Question 10

If you were running water through a hose, how would you increase the discharge of water coming from the hose?

Accepted Answer

A)  Turn up the water at the faucet 
B)  Hold your finger over half of the opening in the hose 
C)  Connect the hose to a sprinkler 
D)  Connect the hose to a spray gun 
A)  Turn up the water at the faucet 
B)  Hold your finger over half of the opening in the hose 
C)  Connect the hose to a sprinkler 
D)  Connect the hose to a spray gun

What is a hydrograph NOT able to tell you about a river?

Hydrographs are used to show the amount of water in the hydrologic cycle.

Which of the following will tend to REDUCE the size of a river flood?

After a flood, you should be sure to wash anything that has been in touch with river water.

The bed load of a stream is involves the largest grains in the stream.

Which of the following is NOT an example of a base level for a river?

How would a river in an area changed from forest to farmland react to changes?

Rivers normally stay in a state of dynamic equilibrium between their flow velocity, their gradient, and their cross-sectional area.

Which of the following is NOT information that can be obtained by calculation of a recurrence interval for a flood?

If you were running water through a hose, how would you increase the discharge of water coming from the hose?

Introduction to Natural Hazards

Internal Structure of the Earth and Plate Tectonics

Earthquakes

Tsunamis

Volcanoes

Mass Wasting

Subsidence and Soils

Atmosphere and Severe Weather

Hurricanes and Extratropical Cyclones

Coastal Hazards

Climate and Climate Change

Wildfires

Impacts and Extinctions

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Exam 6: Flooding

What is a hydrograph NOT able to tell you about a river?

Hydrographs are used to show the amount of water in the hydrologic cycle.

Which of the following will tend to REDUCE the size of a river flood?

After a flood, you should be sure to wash anything that has been in touch with river water.

The bed load of a stream is involves the largest grains in the stream.

Which of the following is NOT an example of a base level for a river?

How would a river in an area changed from forest to farmland react to changes?

Rivers normally stay in a state of dynamic equilibrium between their flow velocity, their gradient, and their cross-sectional area.

Which of the following is NOT information that can be obtained by calculation of a recurrence interval for a flood?

If you were running water through a hose, how would you increase the discharge of water coming from the hose?

Introduction to Natural Hazards

Internal Structure of the Earth and Plate Tectonics

Earthquakes

Tsunamis

Volcanoes

Mass Wasting

Subsidence and Soils

Atmosphere and Severe Weather

Hurricanes and Extratropical Cyclones

Coastal Hazards

Climate and Climate Change

Wildfires

Impacts and Extinctions

Filters