The Problem with Nuclear Fusion

What has been the general perception of nuclear fusion's feasibility over the decades?

• It has always been considered easy to achieve.

• It has been a pipedream, always seemingly 20 years away.

• It was only considered possible in the last decade.

• It has been widely used for decades.

What is the main advantage of achieving cost-effective nuclear fusion power?

• It would make space travel more common.

• It would increase the world's reliance on nuclear fission.

• It would make fossil fuels cheaper.

• It would change the face of society by providing clean, safe fuels.

What are the two main designs used in nuclear fusion experiments?

• Tokamak and Stellarator

• Fission and Fusion

• Electron and Neutron

• Plasma and Ion

What is the primary challenge in achieving nuclear fusion?

• Creating a plasma that can be easily controlled.

• Overcoming the electromagnetic repulsion between atoms.

• Finding a suitable location for fusion reactors.

• Designing a reactor that can operate in space.

Which two isotopes of hydrogen are most commonly used in fusion reactions?

• Helium-3 and Protium

• Protium and Deuterium

• Tritium and Helium-3

• Deuterium and Tritium

What is the main byproduct of deuterium-tritium fusion reaction?

• Neon

• Helium

• Uranium

• Oxygen

What is the estimated global reserve of tritium?

• About 20 kilograms

• 50 kilograms

• 5 kilograms

• Over 100 kilograms

What is the role of the blanket in a Tokamak fusion generator?

• To cool down the plasma.

• To breed tritium and convert kinetic energy to heat.

• To generate electricity directly from fusion.

• To protect the reactor from external threats.

What material is currently the leading candidate for the neutron multiplier in fusion reactors?

• Plutonium

• Lithium

• Beryllium

• Uranium

What is a major problem with Tokamak fusion reactors according to the text?

• They solve all problems of nuclear energy.

• They require too little fuel to be practical.

• They are too safe, limiting their energy output.

• They face the same economic problems as nuclear fission reactors.