Hard Engineering Strategies Quiz

What is the primary purpose of hard engineering strategies?

• To protect coastal areas from flooding and erosion

• To improve the appearance of the coastline

• To increase natural beach formation

• To encourage tourism

Why are hard engineering strategies mainly used in economically valuable areas?

• They prevent erosion in all coastal areas

• They protect important infrastructure and businesses

• They increase biodiversity

• They blend well with the natural environment

Which of the following is a common hard engineering strategy?

• Groynes

• Sand dune regeneration

• Beach nourishment

• Managed retreat

How do recurved sea walls help reduce erosion?

• They reflect wave energy back into the sea

• They block all incoming waves

• They absorb water and let it drain slowly

• They trap sand to build up the beach

What is one major disadvantage of sea walls?

• They are very expensive to construct

• They require little to no maintenance

• They are made of wood, which decays quickly

• They increase tourism on the beach

What is the main function of groynes?

• To hold back waves during storms

• To trap sediment moved by longshore drift

• To act as a barrier against high tides

• To reflect wave energy away from cliffs

What is one advantage of groynes?

• They help maintain wide beaches, which attract tourists

• They allow sediment to move freely along the coast

• They require no maintenance once installed

• They prevent waves from reaching the shore

How can groynes negatively affect other coastal areas?

• They speed up wave movement along the coast

• They prevent beaches from forming naturally

• They can starve beaches further down the coast of sediment

• They allow too much water to collect on the beach

What is rock armor also known as?

• Riprap

• Gabions

• Boulder barriers

• Wave breakers

What is the main benefit of rock armor?

• It is cheaper than other hard engineering methods

• It prevents longshore drift

• It provides strong protection by dissipating wave energy

• It blends in naturally with the coastline