Question 1

What happens to the sediments that are in and below the dewatered zone of an aquifer?

Accepted Answer

A)   The sediments become compacted.
B)   The sediments remain suspended.
C)   The sediments move into the cone of depression.D) A) and B)
E) A) and C)

Question 2

Which of the following is a feature that commonly forms where limestone has been dissolved?

Accepted Answer

A)   sinkhole
B)   karst topography
C)   cave
D)   all of theseE) B) and C)
F) A) and D)

Question 3

The permeability of a material refers to:

Accepted Answer

A)   the volume of air space in a material
B)   a meandering stream's movement across the underlying bedrock
C)   the ease with which a stream erodes material
D)   the ability of water to flow through a materialE) C) and D)
F) A) and D)

Question 4

Which of the following events is most like the formation of a cloud?

Accepted Answer

A)   water running off a roof
B)   water forming on a cold object on a hot, humid summer day
C)   water entering the air from the leaves of growing plants
D)   water moving downward into the soil after a summer rain stormE) A) and D)
F) A) and C)

Question 5

A cone of depression can form if:

Accepted Answer

A)   groundwater is overpumped from an aquifer
B)   limestone caverns collapse
C)   an artesian well goes dryD) A) and B)
E) All of the above

Question 6

Where on this cross section would water at the surface infiltrate to become groundwater?

Accepted Answer

A)   1, 2, and 3
B)   1 and 3
C)   2 and 4
D)   2 only
E)   4 onlyF) B) and C)
G) A) and B)

Question 7

A part of a steam that receives water from the inflow of ground water is called a:

Accepted Answer

A)   gaining stream
B)   losing stream
C)   hydraulic gradientD) All of the above
E) B) and C) A

Question 8

Which of the following is most similar in volume to an acre-foot of water?

Accepted Answer

A)   1,000 gallons
B)   an acre covered to a depth of 3 feet 1 meter) 
C)   most of a football field covered to a depth of 1 foot
D)   a square mile of land covered to a depth of 3 feet 1 meter) 
E)   20 million gallonsF) C) and D)
G) A) and B)

Question 9

The first step in constructing a contour map of a water table is to:

Accepted Answer

A)   collect and plot the elevations of the water table in all available wells in an area
B)   collect water quality data and plot it with all available wells in the area
C)   determine the amount of water present in the subsurface
D)   calculate the age of the water in the water tableE) B) and C)
F) B) and D)

Question 10

Which of the following materials has high porosity and high permeability?

Accepted Answer

A)   unfractured granite
B)   well-sorted gravel
C)   compacted clay
D)   uncompacted clay
E)   poorly sorted sand, silt, and clayF) A) and B)
G) A) and C)

Question 11

What might happen to a losing stream as the water passes from flowing over hard, impermeable rocks to flowing over more permeable rocks?

Accepted Answer

A)   The stream will lose more water to the subsurface and might disappear.
B)   The stream will gain water and flow faster.
C)   No change will occur in the stream flow.D) None of the above
E) B) and C)

Question 12

This cross section shows the location of a septic tank with harmful bacteria and 5 wells. Which well is least likely to become contaminated?

Accepted Answer

A)   well A
B)   well B
C)   well C
D)   well D
E)   well EF) All of the above
G) A) and D)

Question 13

Which of the following energy sources drives the hydrologic cycle?

Accepted Answer

A)   internal heat energy
B)   river flow
C)   wind energy
D)   solar energy
E)   gravityF) A) and B)
G) B) and E)

Question 14

Which of the following is NOT true about the water table?

Accepted Answer

A)   the water table is right at the land surface in swamps
B)   the water table is generally horizontal
C)   the water table is above the land surface in lakes
D)   overpumping can change the slope of the water tableE) None of the above
F) A) and D) B

Question 15

Which of the following materials has moderate to high porosity but low permeability?

Accepted Answer

A)   fractured sandstone
B)   uncompacted clays
C)   well-sorted gravel
D)   well-sorted sandE) B) and C)
F) A) and D) B

Question 16

In a material that holds groundwater, porosity:

Accepted Answer

A)   controls the amount of water that can be stored
B)   determines the composition of the cement between grains and clasts
C)   does not depend on the size and shape of grains and clasts
D)   is constant from one type of material to anotherE) B) and C)
F) B) and D)

Question 17

Which two uses consume most freshwater in the United States?

Accepted Answer

A)   drinking water and showering
B)   mining and raising livestock
C)   irrigation and drinking water
D)   mining and industrial use
E)   thermoelectric power and irrigationF) B) and D)
G) A) and D)

Question 18

Each number on this figure refers to a location with groundwater in a subsurface material that is consistent in character across the entire figure. Of these locations, which one would have groundwater flowing to the left?

Accepted Answer

A)   1
B)   2
C)   3
D)   4
E)   5F) B) and E)
G) All of the above

Question 19

Which of the following generally is true about caves formed by dissolution?

Accepted Answer

A)   acidic waters dissolve feldspar in granite, producing clay
B)   groundwater removed material from limestone
C)   hot geothermal waters introduce acids into shallow rocks
D)   carbon dioxide rises from depth and dissolves calcite and clayE) A) and B)
F) A) and C)

Question 20

Which of the following materials probably has the highest porosity?

Accepted Answer

A)   poorly sorted sediment
B)   sediment composed only of rounded cobbles that rest directly on one another
C)   a mixture of sand, silt, and clay
D)   a coarse-grained graniteE) None of the above
F) All of the above

Exam 17: Water Resources

What happens to the sediments that are in and below the dewatered zone of an aquifer?

Correct AnswerverifiedShow Answer

Which of the following is a feature that commonly forms where limestone has been dissolved?

Correct AnswerverifiedShow Answer

The permeability of a material refers to:

Correct AnswerverifiedShow Answer

Which of the following events is most like the formation of a cloud?

Correct AnswerverifiedShow Answer

A cone of depression can form if:

Correct AnswerverifiedShow Answer

Where on this cross section would water at the surface infiltrate to become groundwater?

Correct AnswerverifiedShow Answer

A part of a steam that receives water from the inflow of ground water is called a:

Correct AnswerverifiedA

Which of the following is most similar in volume to an acre-foot of water?

Correct AnswerverifiedShow Answer

The first step in constructing a contour map of a water table is to:

Correct AnswerverifiedShow Answer

Which of the following materials has high porosity and high permeability?

Correct AnswerverifiedShow Answer

What might happen to a losing stream as the water passes from flowing over hard, impermeable rocks to flowing over more permeable rocks?

Correct AnswerverifiedShow Answer

This cross section shows the location of a septic tank with harmful bacteria and 5 wells. Which well is least likely to become contaminated?

Correct AnswerverifiedShow Answer

Which of the following energy sources drives the hydrologic cycle?

Correct AnswerverifiedShow Answer

Which of the following is NOT true about the water table?

Correct AnswerverifiedB

Which of the following materials has moderate to high porosity but low permeability?

Correct AnswerverifiedB

In a material that holds groundwater, porosity:

Correct AnswerverifiedShow Answer

Which two uses consume most freshwater in the United States?

Correct AnswerverifiedShow Answer

Each number on this figure refers to a location with groundwater in a subsurface material that is consistent in character across the entire figure. Of these locations, which one would have groundwater flowing to the left?

Correct AnswerverifiedShow Answer

Which of the following generally is true about caves formed by dissolution?

Correct AnswerverifiedShow Answer

Which of the following materials probably has the highest porosity?

Correct AnswerverifiedShow Answer

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A

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B

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