Coastal Engineering Quiz

What is the movement of sand along the beach called when waves move at an angle to the coast?

• Backwash

• Swash

• Longshore current

• Tidal flow

Which type of waves are responsible for adding sand to a beach?

• Constructive waves

• Destructive waves

• Longshore waves

• Tidal waves

What is a sand budget?

• The total amount of sand on a beach at any time

• The amount of sand coming in and out of a beach system

• The sand used in beach nourishment

• The amount of sand used in coastal engineering projects

What is the result of large waves hitting the shoreline?

• Accreting beach

• Eroding beach

• Stabilized sand dunes

• Increased sand supply

Which coastal engineering structure is designed to stop erosion and lies parallel to the coast?

• Groynes

• Seawalls

• Training walls

• Breakwaters

What is a key problem associated with groynes?

• They prevent offshore movement of sand

• They cause erosion further down the beach

• They prevent beach accretion

• They are not effective in storms

What is the primary purpose of a training wall?

• To stop longshore drift

• To protect river entrances for navigation

• To prevent coastal development

• To block wave action

What method is used to add sand to an eroded beach?

• Groynes

• Training walls

• Sand bypass systems

• Beach nourishment

What is a downside of beach nourishment?

• It permanently prevents erosion

• It requires the use of heavy machinery on the beach

• It is always a long-term solution

• It always improves beach habitats for animals

Which structure reduces wave action and slows down erosion by being placed parallel to the beach?

• Breakwater

• Groyne

• Artificial reef

• Training wall