Question 1

Waves that approach the shore at an angle produce a longshore current that flows parallel to the beach.

Accepted Answer

A) True 
 B)False

Question 2

During the last glacial period, sea level was approximately 100 feet lower than today.

Accepted Answer

A) True 
 B)False

Question 3

High-energy waves of winter storms ________.

Accepted Answer

A)  move sand from bars onto the beach 
B)  move sand from the beach out to bars 
C)  build sand spits and tombolos 
D)  hold sand on the beach and keep the beach stable 
E)  All of these are correct.

Question 4

If sea level is to remain constant, the water budget of an estuary requires that all inputs of water equal To.

Accepted Answer

A) True 
 B)False

Question 5

An example of a ria coast is ________.

Accepted Answer

A)  the mouth of the Mississippi River 
B)  San Francisco Bay 
C)  Delaware Bay 
D)  the Gulf of Mexico 
E)  southeast Alaska

Question 6

A partially mixed estuary generally has a two-layered flow that moves inward at depth and seaward at the surface.

Accepted Answer

A) True 
 B)False

Question 7

A coastal circulation cell includes ________.

Accepted Answer

A)  longshore transport 
B)  rip currents 
C)  onshore transport 
D)  All of these are correct. 
E)  None of these is correct.

Question 8

The backshore ________.

Accepted Answer

A)  is the same as the low-tide terrace 
B)  lies under the surf zone 
C)  is found between high- and low-tide levels 
D)  is part of the foreshore 
E)  is the high and dry part of the beach

Question 9

If, in a partially mixed estuary, the seaward flow is 15 units per day and the river input is 11 units per day the net saltwater flow is ________ units per day.

Accepted Answer

A)  4 
B)  8 
C)  11 
D)  15 
E)  26

Question 10

The influx of seawater at depth in an estuary ________.

Accepted Answer

A)  supplies water to make up for net surface water outflow 
B)  supplies salt to compensate for dilution by river water 
C)  supplies water to maintain the estuary's water level 
D)  All of these are correct. 
E)  None of these is correct.

Question 11

Which part of the beach includes the area between the high- and low-tide shorelines?

Accepted Answer

A)  Foreshore 
B)  Backshore 
C)  Offshore 
D)  Coastline 
E)  Berm

Question 12

A low-tide terrace forms ________.

Accepted Answer

A)  seaward of the offshore bar 
B)  below the beach face 
C)  between high and low water 
D)  along the trough 
E)  next to the lower beach scarp

Question 13

The beach face ________.

Accepted Answer

A)  is the same as the low-tide terrace 
B)  lies under the surf zone 
C)  is found between high-tide and low-tide levels 
D)  appears between an offshore bar and a low-tide terrace 
E)  is found between the summer and the winter berm

Question 14

If tidal currents are slight in an estuary but river flow is very large, which type of estuary is most likely to occur?

Accepted Answer

A)  a partially mixed estuary 
B)  a salt wedge estuary 
C)  a fjord 
D)  a well-mixed estuary 
E)  None of these are correct; it is impossible to tell from the information given.

Question 15

Barrier Islands are common features along the coasts of the southeast United States.

Accepted Answer

A) True 
 B)False

Question 16

Which of the following coastal engineering structures is built perpendicular to the shoreline?

Accepted Answer

A)  artificial dune 
B)  breakwater 
C)  groin 
D)  seawall 
E)  None of these is correct.

Question 17

In a well-mixed shallow estuary, the net seaward flow occurs at ________.

Accepted Answer

A)  the surface only 
B)  depth only 
C)  middle depths 
D)  all depths 
E)  slack water only

Question 18

A coral reef coast is a product of ________.

Accepted Answer

A)  volcanism 
B)  erosion 
C)  a change in current direction 
D)  living organisms 
E)  wave action

Question 19

An example of a fault coast is ________.

Accepted Answer

A)  the mouth of the Mississippi River 
B)  Hanauma Bay, Oahu, Hawaii 
C)  Delaware Bay 
D)  the Gulf of Mexico 
E)  southeast Alaska

Question 20

A winter berm tends to be farther inland than a summer berm.

Accepted Answer

A) True 
 B)False

Exam 10: Coasts, Beaches, and Estuaries

Waves that approach the shore at an angle produce a longshore current that flows parallel to the beach.

During the last glacial period, sea level was approximately 100 feet lower than today.

High-energy waves of winter storms ________.

If sea level is to remain constant, the water budget of an estuary requires that all inputs of water equal T_o.

An example of a ria coast is ________.

A partially mixed estuary generally has a two-layered flow that moves inward at depth and seaward at the surface.

A coastal circulation cell includes ________.

The backshore ________.

If, in a partially mixed estuary, the seaward flow is 15 units per day and the river input is 11 units per day the net saltwater flow is ________ units per day.

The influx of seawater at depth in an estuary ________.

Which part of the beach includes the area between the high- and low-tide shorelines?

A low-tide terrace forms ________.

The beach face ________.

If tidal currents are slight in an estuary but river flow is very large, which type of estuary is most likely to occur?

Barrier Islands are common features along the coasts of the southeast United States.

Which of the following coastal engineering structures is built perpendicular to the shoreline?

In a well-mixed shallow estuary, the net seaward flow occurs at ________.

A coral reef coast is a product of ________.

An example of a fault coast is ________.

A winter berm tends to be farther inland than a summer berm.