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Tidal Energy: Extracting Power from Ocean Tides

Description: Tidal Energy: Extracting Power from Ocean Tides
Number of Questions: 15
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Tags: renewable energy tidal energy ocean energy
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What is the primary source of energy in tidal energy systems?

  1. Wind

  2. Sunlight

  3. Ocean Tides

  4. Geothermal Heat


Correct Option: C
Explanation:

Tidal energy systems harness the energy from the rise and fall of ocean tides to generate electricity.

Which type of tidal energy system is most commonly used?

  1. Tidal Barrage

  2. Tidal Stream Generator

  3. Tidal Lagoon

  4. Tidal Turbine


Correct Option: A
Explanation:

Tidal barrages are the most common type of tidal energy system, consisting of a dam-like structure that creates a difference in water levels between the ocean and a reservoir.

What is the primary advantage of tidal energy systems?

  1. High Energy Density

  2. Continuous Availability

  3. Low Environmental Impact

  4. Low Maintenance Costs


Correct Option: B
Explanation:

Tidal energy systems can generate electricity continuously, as tides occur twice a day, making them a reliable source of renewable energy.

What is the main challenge associated with tidal energy systems?

  1. High Construction Costs

  2. Intermittency

  3. Environmental Impact

  4. Low Efficiency


Correct Option: A
Explanation:

Tidal energy systems, especially large-scale projects, often involve high construction and maintenance costs, which can hinder their widespread implementation.

Which country is a global leader in tidal energy development?

  1. United Kingdom

  2. France

  3. South Korea

  4. China


Correct Option: A
Explanation:

The United Kingdom is a pioneer in tidal energy development, with several operational tidal barrage and tidal stream generator projects.

What is the largest tidal barrage in the world?

  1. La Rance Tidal Barrage

  2. Sihwa Lake Tidal Power Station

  3. Jinping-I Tidal Power Station

  4. Garolim Tidal Power Station


Correct Option: A
Explanation:

La Rance Tidal Barrage in France is the largest tidal barrage in the world, with a capacity of 240 MW.

Which technology is used to capture the kinetic energy of tidal currents?

  1. Tidal Barrage

  2. Tidal Stream Generator

  3. Tidal Lagoon

  4. Tidal Turbine


Correct Option: B
Explanation:

Tidal stream generators are devices that capture the kinetic energy of tidal currents, similar to wind turbines but underwater.

What is the primary environmental concern associated with tidal energy systems?

  1. Habitat Disruption

  2. Noise Pollution

  3. Visual Impact

  4. Water Quality Degradation


Correct Option: A
Explanation:

Tidal energy systems can potentially disrupt marine habitats, affecting marine life and ecosystems.

Which type of tidal energy system involves enclosing a section of the coastline?

  1. Tidal Barrage

  2. Tidal Stream Generator

  3. Tidal Lagoon

  4. Tidal Turbine


Correct Option: C
Explanation:

Tidal lagoons involve enclosing a section of the coastline, creating a controlled body of water that can be used to generate electricity from tidal variations.

What is the main advantage of tidal stream generators over tidal barrages?

  1. Lower Construction Costs

  2. Reduced Environmental Impact

  3. Higher Energy Output

  4. Longer Lifespan


Correct Option: B
Explanation:

Tidal stream generators have a lower environmental impact compared to tidal barrages, as they do not require major infrastructure changes or disruption of marine habitats.

Which country has the largest installed capacity of tidal energy in the world?

  1. United Kingdom

  2. France

  3. South Korea

  4. China


Correct Option: D
Explanation:

China has the largest installed capacity of tidal energy in the world, with several large-scale tidal barrage projects.

What is the potential global capacity of tidal energy?

  1. 100 GW

  2. 1,000 GW

  3. 10,000 GW

  4. 100,000 GW


Correct Option: B
Explanation:

The global potential capacity of tidal energy is estimated to be around 1,000 GW, which is a significant amount of renewable energy.

Which technology is used to generate electricity from the rise and fall of sea levels?

  1. Tidal Barrage

  2. Tidal Stream Generator

  3. Tidal Lagoon

  4. Tidal Turbine


Correct Option: A
Explanation:

Tidal barrages are structures built across estuaries or tidal inlets, utilizing the difference in water levels between high and low tides to generate electricity.

What is the main advantage of tidal lagoons over tidal barrages?

  1. Lower Construction Costs

  2. Reduced Environmental Impact

  3. Higher Energy Output

  4. Longer Lifespan


Correct Option: B
Explanation:

Tidal lagoons have a lower environmental impact compared to tidal barrages, as they do not require major infrastructure changes or disruption of marine habitats.

Which technology is used to generate electricity from the flow of tidal currents?

  1. Tidal Barrage

  2. Tidal Stream Generator

  3. Tidal Lagoon

  4. Tidal Turbine


Correct Option: B
Explanation:

Tidal stream generators are devices that capture the kinetic energy of tidal currents, similar to wind turbines but underwater.

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