Nuclear Power and Energy Harvesting Quiz

What percentage of global energy production was made up by nuclear power in 2015?

• 4%

• 10%

• 2%

• 8%

Which process involves the splitting of heavier nuclei into lighter nuclei?

• Fusion

• Fission

• Oxidation

• Combustion

What is required for a self-sustaining chain reaction in a nuclear reactor?

• High temperature

• Critical mass

• Low pressure

• High pressure

What is the primary role of control rods in a nuclear reactor?

• To speed up neutrons

• To absorb neutrons

• To cool the reactor

• To generate electricity

What substance is commonly used as a moderator in nuclear reactors?

• Graphite

• Copper

• Iron

• Lead

Which of the following is a disadvantage of nuclear power?

• Emits carbon dioxide

• Produces nuclear waste

• Requires large land area

• Is highly renewable

What is a major advantage of nuclear power in terms of environmental impact?

• No waste production

• No carbon emissions

• Unlimited fuel supply

• Low initial cost

Where does nuclear fusion naturally occur?

• In the ocean

• In the sun

• In the Earth's core

• In nuclear reactors

What is the efficiency of the nuclear power plant in the example problem?

• 32%

• 90%

• 50%

• 75%

How much uranium-235 is required to generate 500 megawatts for 30 days at 32% efficiency?

• 16.5 kg

• 50 kg

• 10 kg

• 25 kg