GLY105 Final Examination Latest 2021

Question 1The type of motion that characterizes ocean waves is:

shear

oscillatory

tensional

retrograde

Question 2As wave motion propagates in a progressive manner, what is the overall particle motion observed?

up and down

side to side

particle motion is the same as wave motion

shear motion

Question 3The depth of influence for a wave is:

one half its wavelength

two times its wavelength

one half its wave base

two times its wave base

Question 4The velocity of a wave as it propagates across a surface is known as:

Period

celerity

wavelength

amplitude

Question 5 Wave energy is concentrated in ________________ and dissipated in _______________________.

headland areas; embayments

embayments; headland areas

Question 6All of the following may potentially produce a tsunami except:

bad weather

earthquakes

glacial calving

volcanic eruption

Question 7The adjacent shallow marine waters along a beach is known as:

the foreshore

the nearshore

the backshore

the berm

Question 8A steep beach will display which feature?

sandbars

barrier islands

ridge and runnels

none of the above

Question 9Typically speaking, how many sandbars will be in the nearshore environment?

1

3

5

2

Question 10On the seaward side of the bar crest there is a ____________________ energy regime.

low

average

high

Question 11What kind of sediment would you most likely find on the landward side of a bar trough?

fine grained

well sorted

mature

coarse grained

Question 12Ridge and runnel systems only form on:

shallow gradient beaches

steep gradient beaches

Question 13The swash zone is located in which beach environment?

foreshore

nearshore

backshore

berm

Question 14At the base of the foreshore, where you find the coarsest grained sediment and shells is known as:

the storm ridge

the sandbars

the plunge step

the swash zone

Question 15Barrier islands are cross cut by:

overwash deposits

tidal flats

tidal inlets

barrier spits

Question 16The most unstable portion of a barrier island is the area closest to the:

landward margin

bay or lagoon

frontal dune ridge

tidal inlet

Question 17The largest barrier system anywhere on Earth is located where?

Gulf Coast US

East Coast India

West Coast US

East Coast US

Question 18Much of the sediment that has been deposited onto the continental shelf off our coastline comes from:

the weathering and erosion of mountains

the ocean itself

delta deposits

the barrier systems

Question 19 Because Earth has to play “catch up” with the moon in its orbit, tidal cycles are ________________________ each successive day (according to equilibrium tidal theory.)

50 minutes earlier

25 minutes earlier

50 minutes later

25 minutes later

Question 20Aphelion occurs on or around:

January 3rd

September 10th

July 4th

May 20th

Question 21The law of gravitation dictates that as objects decrease their distance from one another, their gravitational attraction :

increases

decreases

remains the same

Question 22The highest tides on Earth occur:

in the US

in Europe

in Canada

in Southeast Asia

Question 23Centrifugal force is a balancing force that is exerted when:

objects travel in straight paths

objects travel in curved paths

objects are at rest

none of the above

Question 24The Coriolis force bends winds and ocean currents (and consequently tides) because:

Earth rotates on its axis

The moon rotates at the same rate it revolves

The Sun is so massive

Earth is closer to the Sun at some point in its orbit

Question 25Large boulders that appear out of place and were left behind as a result of glaciation are known as:

kames

eskers

erratics

cirques

 

Question 26A glacier will always advance from its source area if the rate of accumulation is greater than the rate of:

subsidence

equilibrium

ablation

abruption

Question 27Cape Cod, Massachussetts and Long Island, New York are both examples of Pleistocene glacial ________________ that have been further built by wave deposited sands.

drumlins

kettles

eskers

end moraines

Question 28Sediments deposited directly by glaciers as they melt are characterized by:

uniformly coarse grain size

uniformly fine grain size

an absence of sorting

graded bedding

Question 29Sediment dropped by glacial ice is known as:

stratified drift

graded bedding

till

outwash

Question 30Outwash sediment is dominated by:

gravel and boulders

boulders and cobbles

pebbles and boulders

silt and clay

Question 31The term applied to various sizes of boulders that are commonly used in structural material to provide protection to the shoreline is:

gabions

longard tubes

rip-rap

jetties

Question 32Wire baskets filled with rocks are called:

gabions

longard tubes

rip-rap

jetties

Question 33One of the oldest and most successful seawall projects is located in:

New Orleans, LA

Biloxi, MS

Galveston, TX

Corpus Christi, TX

Question 34A structure built with the specific duty of dissipating wave energy before it reaches the shoreline is known as a:

groin

jetty

seawall

breakwater

Question 35A salient can be found behind which structural feature?

breakwater

jetty

groin

seawall

Question 36The difference between groins and jetties is the fact that jetties:

run parallel to the shoreline

do not interrupt the littoral drift of sediment

are typically smaller

are larger and found near tidal inlets