Question 1

A ____ drainage pattern is one in which streams diverge outward likes spokes on a wheel.

Accepted Answer

A)   jointed
B)   tilted
C)   compass
D)   radial
E)   conicalF) B) and C)
G) A) and E)

Question 2

Streams erode rock and sediment by ___.

Accepted Answer

A)   hydraulic action
B)   solution
C)   abrasion
D)   All answers are correct.
E)   None of the answers are correct.F) C) and D)
G) D) and E)

Question 3

Stream-dominated river deltas, like the Mississippi, display the characteristic triangular shape of a delta.

Accepted Answer

A) True 
 B)False

Question 4

A stream reaches its maximum velocity close to the shoreline.

Accepted Answer

A) True 
 B)False

Question 5

A bar in a river channel is a ridge of sediment, usually sand and gravel, deposited in the middle or along the banks of a stream.

Accepted Answer

A) True 
 B)False

Question 6

A graded stream can be deepening its channel by down cutting while part of its energy is also widening its valley by ______ erosion.

Accepted Answer

A)   downward
B)   longitudinal
C)   lateral
D)   distal
E)   proximalF) B) and C)
G) A) and C)

Question 7

Saltation of sand grains begins when they are dissolved.

Accepted Answer

A) True 
 B)False

Question 8

A _____ is a ridge of sediment built by sedimentation on the middle or banks of a stream channel.

Accepted Answer

A)   levee
B)   flood plain
C)   meander loop
D)   channel
E)   barF) B) and E)
G) A) and D)

Question 9

___ is/are sudden localized floods of large volume and short duration, often triggered by heavy rainstorms.

Accepted Answer

A)   Sheetwash
B)   Dry flooding
C)   Flash floods
D)   Channel erosion
E)   Stream piracyF) A) and B)
G) B) and C)

Question 10

Rivers may develop pronounced sinuous (wiggly)  curves called a ___ pattern.

Accepted Answer

A)   braided
B)   meandering
C)   incised
D)   channelized
E)   rilledF) A) and B)
G) A) and C)

Question 11

_______ deposits are found in streams where running water has mechanically concentrated heavy sediment such as gold.

Accepted Answer

A)   Placer
B)   Lag
C)   Granular
D)   Pebble
E)   AgglomeratedF) A) and E)
G) B) and E)

Question 12

A(n)  ___ is a step-like landform found above a stream and its floodplain. It is a remnant of an older flood plain or river-eroded flat surface.

Accepted Answer

A)   levee
B)   incised meander
C)   cut bank
D)   stream terrace
E)   upland plateauF) A) and B)
G) A) and C)

Question 13

A cutoff meander may become a crescent-shaped __.

Accepted Answer

A)   kettle lake
B)   moraine lake
C)   levee lake
D)   oxbow lake
E)   Yazoo lakeF) A) and B)
G) A) and C)

Question 14

___ influences the velocity of a river along with gradient.

Accepted Answer

A)   Direction of flow
B)   Channel shape and roughness
C)   Temperature of the water
D)   Chemistry of the water
E)   Latitude of the riverF) A) and D)
G) A) and C)

Question 15

_____ refers to sand grain movement in a series of short leaps or bounces off the bottom.

Accepted Answer

A)   Jumping
B)   Floating
C)   Saltation
D)   Hopping
E)   VaultingF) A) and B)
G) B) and C)

Question 16

Discharge is the product of average stream width times average stream depth times ___.

Accepted Answer

A)   stream velocity
B)   stream sinuosity
C)   stream elevation
D)   stream gradient
E)   stream temperatureF) A) and B)
G) A) and C)

Question 17

The ______ is the total area drained by a river and its tributaries.

Accepted Answer

A)   flow area
B)   divide
C)   drainage basin
D)   domain
E)   hoodF) None of the above
G) A) and C)

Question 18

A "100-year flood" has a _______ percent chance of occurring in any given year.

Accepted Answer

A)   1
B)   100
C)   10
D)   0.1
E)   0.01F) D) and E)
G) B) and D)

Question 19

Movement of cobbles and boulders by rolling, sliding, or dragging in a streambed is called ____ load.

Accepted Answer

A)   dissolution
B)   solution
C)   suspension
D)   traction
E)   saltationF) C) and D)
G) D) and E)

Question 20

A cutoff meander can become an oxbow lake.

Accepted Answer

A) True 
 B)False

Exam 10: Streams and Floods

A graded stream can be deepening its channel by down cutting while part of its energy is also widening its valley by ______ erosion.

Correct AnswerverifiedShow Answer

A bar in a river channel is a ridge of sediment, usually sand and gravel, deposited in the middle or along the banks of a stream.

Correct AnswerverifiedShow Answer

A stream reaches its maximum velocity close to the shoreline.

Correct AnswerverifiedShow Answer

Rivers may develop pronounced sinuous (wiggly) curves called a ___ pattern.

Correct AnswerverifiedShow Answer

A "100-year flood" has a _______ percent chance of occurring in any given year.

Correct AnswerverifiedShow Answer

_____ refers to sand grain movement in a series of short leaps or bounces off the bottom.

Correct AnswerverifiedShow Answer

___ influences the velocity of a river along with gradient.

Correct AnswerverifiedShow Answer

A ____ drainage pattern is one in which streams diverge outward likes spokes on a wheel.

Correct AnswerverifiedShow Answer

The ______ is the total area drained by a river and its tributaries.

Correct AnswerverifiedShow Answer

Saltation of sand grains begins when they are dissolved.

Correct AnswerverifiedShow Answer

A _____ is a ridge of sediment built by sedimentation on the middle or banks of a stream channel.

Correct AnswerverifiedShow Answer

___ is/are sudden localized floods of large volume and short duration, often triggered by heavy rainstorms.

Correct AnswerverifiedShow Answer

Movement of cobbles and boulders by rolling, sliding, or dragging in a streambed is called ____ load.

Correct AnswerverifiedShow Answer

A cutoff meander can become an oxbow lake.

Correct AnswerverifiedShow Answer

Streams erode rock and sediment by ___.

Correct AnswerverifiedShow Answer

Discharge is the product of average stream width times average stream depth times ___.

Correct AnswerverifiedShow Answer

Stream-dominated river deltas, like the Mississippi, display the characteristic triangular shape of a delta.

Correct AnswerverifiedShow Answer

A(n) ___ is a step-like landform found above a stream and its floodplain. It is a remnant of an older flood plain or river-eroded flat surface.

Correct AnswerverifiedShow Answer

_______ deposits are found in streams where running water has mechanically concentrated heavy sediment such as gold.

Correct AnswerverifiedShow Answer

A cutoff meander may become a crescent-shaped __.

Correct AnswerverifiedShow Answer

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